The aim of this review is to address controversies in the management of dislocations of the acromioclavicular joint. Current evidence suggests that operative rather than non-operative treatment of Rockwood grade III dislocations results in better cosmetic and radiological results, similar functional outcomes and longer time off work. Early surgery results in better functional and radiological outcomes with a reduced risk of infection and loss of reduction compared with delayed surgery. Surgical options include acromioclavicular fixation, coracoclavicular fixation and coracoclavicular ligament reconstruction. Although non-controlled studies report promising results for arthroscopic coracoclavicular fixation, there are no comparative studies with open techniques to draw conclusions about the best surgical approach. Non-rigid coracoclavicular fixation with tendon graft or synthetic materials, or rigid acromioclavicular fixation with a hook plate, is preferable to fixation with coracoclavicular screws owing to significant risks of loosening and breakage. The evidence, although limited, also suggests that anatomical ligament reconstruction with autograft or certain synthetic grafts may have better outcomes than non-anatomical transfer of the coracoacromial ligament. It has been suggested that this is due to better restoration horizontal and vertical stability of the joint. Despite the large number of recently published studies, there remains a lack of high-quality evidence, making it difficult to draw firm conclusions regarding these controversial issues. Cite this article: Bone Joint J 2013;95-B:1595–1602

Treatments of Chronic Acromioclavicular joint dislocation are controversial. Many procedures have been described in the past for the management of them. Treatment modalities have changed with increasing understanding of the nature of the problem, patient expectations and the biomechanics of the joint. Aim. To assess the functional outcome of the chronic AC joint dislocations treated by modified Weaver-Dunn procedure combined with Acromioclavicular joint augmentation. Material and methods. We treated 54 patients with chronic AC joint dislocation by modified Weaver-Dunn procedure with additional AC joint augmentation. We used tight rope system in 20 patients, Mersilene tape in 22 patients and no 5 Ethibond in 12 patients. Results. This Study was done between Jan 2003 to Jan 2012. Mean follow up was 20 months, mean age of the patients was 35, and male to female distribution was 48:6. We assessed them clinically and radio logically during their follow up. All patients were back to their occupation. 80% are back to their pre injury sporting activity level. The mean Disabilities of the Arm, Shoulder, and Hand (DASH) score was 10.2 points. One patient had a failure of augmentation device. Conclusion. Our study shows that chronic symptomatic AC joint dislocations, (Rockwood types III to V) Managed with modified modified Weaver-Dunn procedure with augmentation are showing good short term results. Significant improvement in the patient satisfaction, early return to work and radiological appearance

Treatments of Chronic Acromioclavicular joint dislocation are controversial. Many procedures have been described in the past for the management of them. Treatment modalities have changed with increasing understanding of the nature of the problem, patient expectations and the biomechanics of the joint. To assess the functional outcome of the chronic AC joint dislocations treated by modified Weaver-Dunn procedure combined with Acromioclavicular joint augmentation. We treated 54 patients with chronic AC joint dislocation by modified Weaver-Dunn procedure with additional AC joint augmentation. We used tight rope system in 20 patients, Mersilene tape in 22 patients and no 5 Ethibond in 12 patients. This Study was done between Jan 2003 to Jan2012. Mean follow up was 20 months, mean age of the patients was 35, and male to female distribution was 48:6. We assessed them clinically and radio logically during their follow up. All patients were back to their occupation. 80% are back to their pre injury sporting activity level. The mean Disabilities of the Arm, Shoulder, and Hand (DASH) score was 10.2 points. One patient had a failure of augmentation device. Our study shows that chronic symptomatic AC joint dislocations, (Rockwood types III to V,) Managed with modified modified Weaver-Dunn procedure with augmentation are showing good short term results. Significant improvement in the patient satisfaction, early return to work and radiological appearance

The aim of our study was to assess, for the first time in a large study, whether there are radiological features of the acromioclavicular joint (ACJ) which vary with age or between genders and side. Clinical experience suggested that there was no clear correlation between the radiological features and symptoms arising from the ACJ. Therefore we also aimed to test the null hypothesis that there are no consistent radiological features which correspond with the need for surgical excision of the ACJ. We analysed 240 shoulder radiographs, divided into male and female, left and right shoulders, and decades from 20 to 80 years inclusive. At the ACJ the presence of sclerosis, osteophytes, cysts and lysis were recorded, and the width of the joint measured. These same parameters were assessed on the pre-operative radiographs for a group of 100 patients by a blinded observer. Fifty had undergone ASD (arthroscopic subacromial decompression), and 50 ASD with ACJ excision. These two groups were age matched. Statistical analyses were performed. There was no statistical difference between any of the parameters for gender or side however with increasing age there was a significantly increased incidence of joint space narrowing and increased features of osteoarthrosis. When comparing the matched ASD and the ACJ excision groups it was found that the presence of medial sclerosis (p = 0.016) and superior clavicular osteophytes (p = 0.016) were more common in the ACJ excision group. We concluded that there is a change in the radiological features of the ACJ with increasing age but not between sides or gender. The null hypothesis is upheld. Only 2 parameters, namely medial acromial sclerosis and superior clavicular osteophytes, are radiological features which correlate with a symptomatic acromioclavicular joint. These have poor sensitivity and specificity and therefore should not be used as a test

The aim of our study was to assess, for the first time in a large study, whether there are radiological features of the acromioclavicular joint (ACJ) which vary with age or between genders and side. Clinical experience suggested that there was no clear correlation between the radiological features and symptoms arising from the ACJ. Therefore we also aimed to test the null hypothesis that there are no consistent radiological features which correspond with the need for surgical excision of the ACJ. We analysed 240 shoulder radiographs, divided into male and female, left and right shoulders, and decades from 20 to 80 years inclusive. At the ACJ the presence of sclerosis, osteophytes and cysts were recorded, and the width and angle of the joint measured. These same parameters were assessed on the preoperative radiographs for a group of 100 patients by a blinded observer. Fifty had undergone ASD (arthroscopic subacromial decompression), and 50 ASD with ACJ excision. These two groups were age matched. Statistical analyses were performed. There was no statistical difference between any of the parameters for gender or side however with increasing age there was a significantly increased incidence of acromial sclerosis and joint space narrowing. When comparing the matched ASD and the ACJ excision groups it was found that the presence of medial sclerosis of the acromium (p = 0.016) and superior clavicular osteophytes (p = 0.016) were more common in the ACJ excision group. We concluded that there is a change in the radiological features of the ACJ with increasing age but not between sides or gender. The null hypothesis has been rejected. The presence of either medial sclerosis of the acromium, and superior clavicular osteophytes, are radiological features which correlate with a symptomatic acromioclavicular joint

Acromioclavicular joint injuries are one of the most common injuries in the shoulder girdle complex. Surgical management is considered based on patient profile, level of activity, pain, and classification of injury. To date, a vast array of surgical techniques have been proposed and described in the literature, a possible reason being that the optimal solution is still uncertain. The aim of this study is to determine the efficacy of an alternative surgical technique. This study is a retrospective case series of 80 patients that have been operated by a single surgeon over a period of 6 years. A novel surgical technique, the ‘BiPOD method’, was applied where a synthetic artificial ligament (LARS®) is used to reconstruct and reduce the acromioclavicular joint. The technique is done in a reproducible manner, where a single continuous artificial ligament is used to reduce and reconstruct both, the coracoclavicular and acromioclavicular ligament complexes to achieve bidirectional stability. Patients were followed-up postoperatively, either clinically where possible or telephonically. The Acromioclavicular Joint Instability Score (ACJI) and radiographic measurements were used to determine the clinical and surgical outcome of the surgery. Radiographic parameters, measuring the reduction of the coracoclavicular- and acromioclavicular joint, were analysed and documented. The results showed marked improvement in both, the coracoclavicular distance and acromioclavicular distance. Clinically, using the ACJI scoring system, the patients reported substantial improvement in pain and function. Complications were recorded but were insignificant. The BiPOD surgical technique, making use of an artificial LARS® ligament, has proven acceptable outcomes in the surgical management of acromioclavicular joint dislocations

Intra-articular punctures and injections are performed routinely on patients with injuries to and chronic diseases of joints, to release an effusion or haemarthrosis, or to inject drugs. The purpose of this study was to investigate the accuracy of placement of the needle during this procedure. A total of 76 cadaver acromioclavicular joints were injected with a solution containing methyl blue and subsequently dissected to distinguish intra- from peri-articular injection. In order to assess the importance of experience in achieving accurate placement, half of the injections were performed by an inexperienced resident and half by a skilled specialist. The specialist injected a further 20 cadaver acromioclavicular joints with the aid of an image intensifier. The overall frequency of peri-articular injection was much higher than expected at 43% (33 of 76) overall, with 42% (16 of 38) by the specialist and 45% (17 of 38) by the resident. The specialist entered the joint in all 20 cases when using the image intensifier. Correct positioning of the needle in the joint should be facilitated by fluoroscopy, thereby guaranteeing an intra-articular injection

In an osteological collection of 3100 specimens, 70 were found with unilateral clavicular fractures which were matched with 70 randomly selected normal specimens. This formed the basis of a study of the incidence of arthritis of the acromioclavicular joint and the effect of clavicular fracture on the development of arthritis in the ipsilateral acromioclavicular joint. This was graded visually on a severity scale of 0 to 3. The incidence of moderate to severe arthritis of the acromioclavicular joint in normal specimens was 77% (100 specimens). In those with a clavicular fracture, 66 of 70 (94%) had arthritis of the acromioclavicular joint, compared to 63 of 70 (90%) on the non-injured contralateral side (p = 0.35). Clavicles with shortening of 15 mm or less had no difference in the incidence of arthritis compared to those with shortening greater than 15 mm (p = 0.25). The location of the fracture had no effect on the development of arthritis

Introduction: Acromioclavicular (AC) joint injuries are common in both the sporting and working populations. Most injuries are grade I in severity and settle with an appropriate non-operative treatment program. Arthroscopic soft tissue debridement of the AC Joint without excising the distal clavicle, is a bone sparing procedure that, to our knowledge, has never been reported in the literature. This paper is a retrospective review of patients with chronic recalcitrant AC joint injuries, who underwent arthroscopic soft tissue debridement of the AC joint. Materials and Methods: Fourteen patients underwent arthroscopic AC joint soft tissue debridement. All patients had failed a non-operative treatment program including physiotherapy, anti-inflammatory tablets and corticosteroid injections. All patients had been symptomatic for a minimum of four months prior to surgery. The surgery involves a glenohumeral joint arthroscopy, subacromial bursoscopy and AC joint arthroscopy. Excision of the torn AC joint meniscus, AC joint synovectomy and soft tissue clearance were performed in all cases. Surgery was performed as a day-only procedure. Results: Ten out of fourteen patients obtained good pain relief and a corresponding increase in function. One patient was lost to follow-up. One patient subsequently underwent an open AC joint reconstruction for chronic instability. Five patients had previously undiagnosed SLAP tears. Conclusion. Arthroscopic soft tissue debridement for recalcitrant AC joint injuries gave good results in 77% of cases. Arthroscopy of the glenohumeral joint in patients with presumed isolated AC joint disease is important as there is a significant proportion of patients who have associated significant superior labral tears. Soft tissue arthroscopic AC joint debridement allows quick post-operative rehabilitation, an early return to sport and work and avoids having to excise bone from the distal clavicle. Arthroscopic AC joint debridement is contraindicated in patients who have grade II or grade III AC joint instability

Injuries to the acromioclavicular joint are common but underdiagnosed. Sprains and minor subluxations are best managed conservatively, but there is debate concerning the treatment of complete dislocations and the more complex combined injuries in which other elements of the shoulder girdle are damaged. Confusion has been caused by existing systems for classification of these injuries, the plethora of available operative techniques and the lack of well-designed clinical trials comparing alternative methods of management. Recent advances in arthroscopic surgery have produced an even greater variety of surgical options for which, as yet, there are no objective data on outcome of high quality. We review the current concepts of the treatment of these injuries

Aim: The purpose of this study was to evaluate the results after arthroscopic treatment of traumatic AC joint dislocation using a Bosworth screw. Method: 18 Patients with acute AC Joint dislocation type Rockwood 3 were arthroscopically treated with temporary transfixation using a 7.0mm cannulated titanium screw of the clavicle to the coracoid process. The coracoid process is arthroscopically visualized and a drill guide for tibial anterior cruciate ligament positioning is used to exactly place the screw into the coracoid process. The screws were removed after 8 weeks. Patients were followed using a prospective study using the Constant Score after 3, 6, 12 and 24 months. Results: 17 Patients were completely evaluated. One screw slipped out of the coracoid process 3 days after surgery requiring revision surgery. No screw breakage was observed. There were no other operation conditioned complications. Constant score showed a mean of 94,7 at last follow up. At follow up, no patient hat a redislocation without weight bearing. With 10kg weight a mean clavicular elevation of 1,8mm was observed. All remaining patients were satisfied with the functional and cosmetic result. Discussion: There is some controversy about the surgical treatment of acute traumatic AC joint dislocation type Rockwood 3. Most open surgery techniques have the disadvantage of a poor cosmetic result or a difficult and dangerous hardware removal, because the scar of the AC joint capsule that is supposed to stabilize the clavicle has to be opened. The Bosworth screw technique does not touch the AC joint at all, but the open procedure has poor cosmetic outcome. It is also important to use a large screw to ensure proper hardware stability to avoid hardware failure. Our technique might be an alternative for the operative treatment of acute AC joint instability, because it is safe and all anatomical structures remain intact in case revision surgery with i.e. arthroscopic AC joint resection and ligamentoplasty is necessary

Because there is little in the literature about specific presentation and examination methods for acromioclavicular (AC) joint pathology, we aimed to define and identify the most reliable tests. We identified and examined 30 patients with probable AC joint pathology. We then excluded eight patients who experienced no pain relief after local Lignocaine infiltration, and examined 22 patients, two of whom had bilateral shoulder problems. There were 15 complaints of AC joint pain, 13 of anterior pain, five of posterior pain and five of lateral pain. Pain radiated anteriorly in 14 patients, posteriorly in two, laterally in three and to the cervical region in three. Pain increased with weight-bearing in 18 shoulders, on elevation in five, on activities of daily living in six, at night or on being lain on in 11, and on reaching across the body in three. Clinical examination revealed swelling in seven shoulders and AC joint prominence in seven. There was local tenderness in 21 shoulders and there were crepitations in four. The forced cross-body test produced pain in 22 shoulders. In 22 shoulders, elevation was less than 60°. Jobe’s test was positive in 20, the Speed’s test in 19, O’Brien’s test in 15, the compression test in 15, the distraction test in 13. A painful arc was present to 160° in 13 shoulders. There was neck tenderness in 13 patients. Associated conditions included two cases of shoulder arthritis, six of impingement, two rotator cuff tears, two cases of biceps tendinitis and two of cervical pathology. Radiological changes were evident in 19 AC joints, 13 shoulder joints and 11 cervical spines. On ultrasonography, pathology was resent in 10 of 15 cases. The most common symptoms were pain with weight-bearing, elevation and lying on shoulder. Anterior and posterior pain was the most common. The most common clinical findings were local tenderness, pain on elevation and the forced cross-body test, positive Jobe’s and Speed’s tests. Because no test is 100% accurate, the whole clinical presentation must be taken into account. Local infiltration of the AC joint is extremely helpful

Acromioclavicular joint is an integral component of Shoulder Complex and common site of injury particularly for athletes involved in sports such as Football, Cricket, Rugby and Shotput. Acromioclavicular Injuries are often neglected and goes untreated especially in low demand patients. Classic surgical techniques are associated with high complication rates. This is a prospective study from 2015–2017 wherein 32 patients with Acute grade 3, 4, 5, 6 Acromioclavicular joint dislocations, were operated with Minimally Invasive Double Tunnel Anatomical Coraco-clavicular Ligament Reconstruction (DT-ACCLR) with Tightrope Suspensory fixation. Clinical Outcomes were evaluated with Visual Analog Scale, Constant functional scale, Start of Movement, Return to Work, Satisfaction index and Coraco-clavicular distance over 12 months. Mean follow-up was 14 ± 3.8 months. Visual analog scale and Constant scores revealed significant advancements 0 ± 0.5 (range, 0–2) and 95 ± 3 (range, 92–98) scores at 12 months respectively. The coraco-clavicular distance significantly reduced from 23 ± 2.4 mm to 8 ± 0.5 mm. Mean return to work by 7 days. 98.6% patients were satisfied with surgical results. We conclude that DT-ACCLR is simple and creative surgical technique which provides stable, reliable and painless AC joint. The patients can move the shoulder same day and return to Work by 5–7days and Sports 3–4 weeks

Acromioclavicular joint (ACJ) dislocations is a common disorder amongst our population for which numerous techniques have been described. It is thought that by using this novel technique combining a CC and AC repair with a reconstruction will result in high maintenance of anatomical reduction and functional results. 12 consecutive patients ACJ dislocations were included. An open superior clavicular approach is used. Firstly, the CC ligaments are repaired after which a CC reconstruction is performed using a tendon allograft. Secondly, the AC ligaments are repaired using an internal brace construct combined with a tendon allograft reconstruction (Figure 1). The acute:chronic ratio was 6:6. Only IIIB, IV and V AC-joint dislocations were included. The Constant-Murley Score improved from 27.6 (8.0 – 56.5) up to 61.5 (42.0 – 92.0) at 12 months of follow up. Besides one frozen shoulder from which the patient recovered spontaneously no complications were observed with this technique. The CCD was reduced from 18.7 mm (13.0 – 24.0) to 10.0 mm (6.0 – 16.0) and 10.5 mm (8.0 – 14.0) respectively 12 weeks and 12 months postoperatively. There is some evidence, suggesting to address as well as the vertical (coracoclavicular (CC) ligaments) as the horizontal (acromioclavicular (AC) ligaments) direction of instability. This study supports addressing both entities however comparative studies discriminating chronic as acute cases should be conducted to further clarify this ongoing debate on treating ACJ instability. This study describes a novel technique to treat acute and chronic Rockwood stage IIIB – IV ACJ dislocations with promising short-term clinical and radiological results. This suggests that the combined repair and reconstruction of the AC and CC ligaments is a safe procedure with low complication risk in experienced hands. Addressing the vertical as well as horizontal stability in ACJ dislocation is considered key to accomplish optimal long-term results

Aims: Most of the orthopaedic literature on os acromiale (OA) is focused on corresponding clinical implication, such as impingement syndrome and rotator cuff tear; whilst, although it is present in 8% of subjects, scarce information is reported on the causes that may predispose to it. Our aim is to investigate whether the origin of OA is related to position of AC joint. Methods: The acromions of 211 volunteers (control group) and 33 subjects, respectively, without or with OA have been radiographically (axillary view) classiþed in accordance to the Edelson and Taitzñ method. The latter distinguishes the acromion in three types on the basis of the distance between the anterior aspect of the acromion and AC joint. Out of 33 subjects with os acromiale, 11 were shoulder painless. We have compared among them the frequencies of the types of acromion observed in the two investigated cohorts. Results: Half (52.1%) of the acromions of the control group had the articular facet for the AC joint on the acromion tip whilst in 45.4% facet was tip distally located. On the other hand, out of 33 subjects with OA, 18.1% and 81.1% had, respectively, AC joint lying on or distally to the acromion tip. Conclusions: Our data suggest that the longer is the distance of AC joint from the anterior edge of the acromion, the higher is the possibility that an OA origin

The aim of this study was to establish a classification system for the acromioclavicular joint using cadaveric dissection and radiological analyses of both reformatted computed tomographic scans and conventional radiographs centred on the joint. This classification should be useful for planning arthroscopic procedures or introducing a needle and in prospective studies of biomechanical stresses across the joint which may be associated with the development of joint pathology. We have demonstrated three main three-dimensional morphological groups namely flat, oblique and curved, on both cadaveric examination and radiological assessment. These groups were recognised in both the coronal and axial planes and were independent of age

Management of highly displaced acromioclavicular joint (ACJ) injuries remain contentious. It is unclear if delayed versus acute reconstruction has an increased risk of fixation failure and complications. The primary aim of this was to compare complications of early versus delayed reconstruction. The secondary aim was to determine modes of failure of ACJ reconstruction requiring revision surgery. A retrospective study was performed of all patients who underwent operative reconstruction of ACJ injuries over a 10-year period (Rockwood III-V). Reconstruction was classed as early (<12 weeks from injury) or delayed (≥12 weeks). Patient demographics, fixation method and post-operative complications were noted, with one-year follow-up a minimum requirement for inclusion. Fixation failure was defined as loss of reduction requiring revision surgery. 104 patients were analysed (n=60 early and n=44 delayed). Mean age was 42.0 (SD 11.2, 17–70 years), 84.6% male and 16/104 were smokers. No difference was observed between fixation failure (p=0.39) or deep infection (p=0.13) with regards to acute versus delayed reconstruction. No patient demographic or timing of surgery was predictive of fixation failure on regression modelling. Overall, eleven patients underwent revision surgery for loss of reduction and implant failure (n=5 suture fatigue, n=2 endo-button escape, n=2 coracoid stress fracture and n=2 deep infection). This study suggests that delayed ACJ reconstruction does not have a higher incidence of fixation failure or major complications compared to acute reconstruction. For those patients with ongoing pain and instability following a trial of non-operative treatment, delayed reconstruction would appear to be a safe treatment approach

Dislocation of the acromioclavicular joint is a relatively common injury and a number of surgical interventions have been described for its treatment. Recently, a synthetic ligament device has become available and been successfully used, however, like other non-native solutions, a compromise must be reached when choosing non-anatomical locations for their placement. This cadaveric study aimed to assess the effect of different clavicular anchorage points for the Lockdown device on the reduction of acromioclavicular joint dislocations, and suggest an optimal location. We also assessed whether further stability is provided using a coracoacromial ligament transfer (a modified Neviaser technique). The acromioclavicular joint was exposed on seven fresh-frozen cadaveric shoulders. The joint was reconstructed using the Lockdown implant using four different clavicular anchorage points and reduction was measured. The coracoacromial ligament was then transferred to the lateral end of the clavicle, and the joint re-assessed. If the Lockdown ligament was secured at the level of the conoid tubercle, the acromioclavicular joint could be reduced anatomically in all cases. If placed medial or 2 cm lateral, the joint was irreducible. If the Lockdown was placed 1 cm lateral to the conoid tubercle, the joint could be reduced with difficulty in four cases. Correct placement of the Lockdown device is crucial to allow anatomical joint reduction. Even when the Lockdown was placed over the conoid tubercle, anterior clavicle displacement remained but this could be controlled using a coracoacromial ligament transfer. Cite this article: Bone Joint J 2015;97-B:1657–61

Aims. To compare radiographic failure and re-operation rates of anatomical coracoclavicular (CC) ligament reconstructional techniques with non-anatomical techniques after chronic high grade acromioclavicular (AC) joint injuries. . Patients and Methods. We reviewed chronic AC joint reconstructions within a region-wide healthcare system to identify surgical technique, complications, radiographic failure and re-operations. Procedures fell into four categories: (1) modified Weaver-Dunn, (2) allograft fixed through coracoid and clavicular tunnels, (3) allograft loop coracoclavicular fixation, and (4) combined allograft loop and synthetic cortical button fixation. Among 167 patients (mean age 38.1 years, (standard deviation (. sd. ) 14.7) treated at least a four week interval after injury, 154 had post-operative radiographs available for analysis. . Results. Radiographic failure occurred in 33/154 cases (21.4%), with the lowest rate in Technique 4 (2/42 4.8%, p = 0.001). Half the failures occurred by six weeks, and the Kaplan-Meier survivorship at 24 months was 94.4% (95% confidence interval (CI) 79.6 to 98.6) for Technique 4 and 69.9% (95% CI 59.4 to 78.3) for the other techniques when combined. In multivariable survival analysis, Technique 4 had better survival than other techniques (Hazard Ratio 0.162, 95% CI 0.039 to 0.068, p = 0.013). Among 155 patients with a minimum of six months post-operative insurance coverage, re-operation occurred in 9.7% (15 patients). However, in multivariable logistic regression, Technique 4 did not reach a statistically significant lower risk for re-operation (odds ratio 0.254, 95% CI 0.05 to 1.3, p = 0.11). Conclusion. In this retrospective series, anatomical CC ligament reconstruction using combined synthetic cortical button and allograft loop fixation had the lowest rate of radiographic failure. . Take home message: Anatomical coracoclavicular ligament reconstruction using combined synthetic cortical button and allograft loop fixation had the lowest rate of radiographic failure. Cite this article: Bone Joint J 2016;98-B:512–18

This prospective, randomized, controlled trial compares patient outcome after non-operative care versus open reduction and tunneled suspension device fixation (ORTSD) for grade III or IV acromioclavicular joint disruptions. Sixty patients aged between sixteen and thirty-five years with an acute grade III or IV AC joint disruption were randomized to receive ORTSD fixation or non-operative treatment. Functional assessment was conducted at six weeks, three months, six months, and one year using the Disabilities of the Arm, Shoulder and Hands (DASH), Oxford Shoulder Scores (OSS) and Short Form (SF-12). Reduction was evaluated using radiographs. Complications were recorded, and an economic evaluation performed. There was no significant difference in DASH or OSS at one year between non-operative and ORTSD groups (DASH score, 4.67 versus 5.63; OSS, 45.72 versus 45.63). Patients undergoing surgery had inferior DASH scores at 6 weeks (p<0.01). Five patients who failed non-operative management subsequently received surgery. Overall cost of treatment was significantly greater after ORTSD fixation (£796.22 vs £3359.73 (p<0.01)). ORTSD fixation confers no functional benefit over non-operative treatment at one year. While patients managed non-operatively generally recover faster, a significant group remain dissatisfied following non-operative treatment requiring delayed surgical reconstruction

Chronic instability of the acromioclavicular joint is relatively common and normally occurs following a fall onto the point of the shoulder. Reconstruction of the joint (Weaver-Dunn procedure) is often required in service personnel, and numerous methods of fixation have been used, including vicryl tape, PDS loops and the use of a hook plate. Many of these operative methods require a second operation to remove the plates and/or screws, and are associated with a failure rate of up to 30%. The ‘Surgilig’ was designed as a method of revision for failed Weaver-Dunn procedures. However this study evaluates its use in the primary operation. We prospectively followed up the Modified Weaver Dunn procedures using surgilig. The post-operative x-rays were reviewed at six weeks, 3 months and then 6 months when the patients were discharged to assess the radiological success of the procedure. We have performed this procedure in 11 patients. Of the eight patients that have reached the six month postoperative time so far, at which they would be discharged from clinic follow-up, none have had radiological failure of the fixation. One patient even had weight-bearing x-rays taken at 6 weeks, with no detrimental effect. Even though a small study, the initial results for primary fixation of acromioclavicular joint disruption with surgilig are extremely encouraging. The study suggests that surgilig should continue to be used in its current role. As patient numbers increase, a follow-up study should be conducted to evaluate these preliminary findings

The LockDown device (previously called Surgilig) is a braided polyester mesh which is mostly used to reconstruct the dislocated acromioclavicular joint. More than 11 000 have been implanted worldwide. Little is known about the tissue reaction to the device nor to its wear products when implanted in an extra-articular site in humans. This is of importance as an adverse immunological reaction could result in osteolysis or damage to the local tissues, thereby affecting the longevity of the implant. We analysed the histology of five LockDown implants retrieved from five patients over the last seven years by one of the senior authors. Routine analysis was carried out in all five cases and immunohistochemistry in one. The LockDown device acts as a scaffold for connective tissue which forms an investing fibrous pseudoligament. The immunological response at the histological level seems favourable with a limited histiocytic and giant cell response to micron-sized wear particles. The connective tissue envelope around the implant is less organised than a native ligament. Cite this article: Bone Joint J 2015;97-B:83–8

A distinctive and consistent pattern of degenerative change was seen in 560 acromioclavicular joints from dry bone skeletons of subjects over 40 years of age. An appreciation of this characteristic configuration is helpful at operation or when introducing a needle into the joint

The treatment of Grade III acromioclavicular joint (ACJ) dislocations has been a subject of much controversy, even as early as Hippocrates. We hypothesized that this surgical technique would improve patient functional outcome. Methods and Results. We present a case series of 17 patients all of whom have had grade III dislocations of the ACJ. The patient population was young active adults. Surgery was performed within four weeks in all cases. One Surgeon in the Queen Elizabeth hospital, University of Birmingham, performed the same procedure on all 17 patients. A standard technique was used for tight rope fixation. The fixation device is comprised of no. 5 fibrewire suture and 2 metal buttons, joined by a continuous loop. This is a low-profile double-metallic button technique. Postoperatively all patients remained in a polysling for three weeks and postoperative rehabilitation was commenced after that point including physiotherapy supervised pendular exercises and gentle passive movements. They were all seen six weeks and three months post operatively. Clinical and radiographic assessment was performed to assess the fixation. Of our cohort of patients, one required revision open stabilization after sustaining a mechanical fall on the affected operated side. There was a failure of fixation in a patient who was non-compliant with postoperative instructions. At three months postoperatively all patients were satisfied with the functional outcome and were able to return to pre injury level of activity. Bar the two failures the average OSS was 45.2 (range 40–48). 14 patients returned to their pre injury occupation and sports fitness. Conclusion. This technique provides a simple, reproducible, minimally invasive technique for acute ACJ dislocation, which expedites a functional recovery of this acute injury. It is a non-rigid fixation of the AC joint that maintains reduction yet allowing for normal movement at the joint

Little has been written about the results of isolated acromioclavicular joint (ACJ) resection using the superior approach. We report the results of our large series. Between June 1994 and October 2003, a single surgeon performed 155 isolated ACJ resections, using the direct superior approach. Exclusion criteria were previous ipsilateral shoulder surgery, simultaneous arthroscopic procedures and OA. We asked 90 of the patients (94 shoulders) to complete the Simple Shoulder Test questionnaire by telephone. The median age of the 72 males and 18 females was 38 years (16 to 62). The dominant shoulder was involved in 54 patients. There was a history of trauma in 44 patients, with 11 rugby injuries. The median follow-up period was 29 months (6 to 118). One portal infection resolved with debridement and antibiotics. Five revision procedures were done, four open revision Mumfords and one subacromial decompression. The mean postoperative Simple Shoulder score was 11.5 (6 to 12). Patients rated outcome as excellent in 63 shoulders, good in 22, moderate in five and poor in four. The technique provides consistently good or excellent results (90%) and allows rapid return to normal function. There was complete resolution of pain in 73 of the 94 shoulders. All rugby players returned to the same level of play

Aim: A prospective study designed to assess and evaluate the results of arthroscopic acromioclavicular joint (ACJ) minimal excision arthroplasty. Patients and Methods: Twenty-two patients with ACJ arthropathy underwent an arthroscopic limited excision of the ACJ preserving the superior ligamentous complex. The patients were assessed pre and post operatively using the Constant score. The average time from surgery to review was five months (three to nineteen months). A self assessment questionnaire was also used, evaluating outcome measures such as activities of daily living, shoulder function and patients satisfaction. Results: The mean preoperative Constant score was 28 and postoperative score was 71 with an improvement in pain from 15% to 80% and the range of motion from 37% to 84%. The preoperative self assessment score was 25.9 and postoperative score was 83 with an improvement in activities of daily living from 28% to 79%, and shoulder function from 34% to 87%.Twenty patients were very satisfied, one was moderately satisfied and one patient was dissatisfied although his shoulder function increased from 20 to 60%. Discussion: This study suggests that this technique is well accepted by the patients and results in a good improvement in shoulder function. The results are comparable with those reported in the literature concerning the standard ACJ arthroplasty. We therefore believe that a limited excision of the ACJ is adequate and a reliable alternative to conventional techniques

Introduction. We present an all arthroscopic technique for modified Weaver Dunn reconstruction of symptomatic chronic type III acromioclavicular joint injuries. Method. Over a 1 year period we performed 12 all arthroscopic modified Weaver-Dunn procedures. All patients had failed non-operative management for at least 6 months, with symptoms of pain and difficulty with overhead activities. The technique involved excision of the lateral end of clavicle, stabilisation with a suture cerclage technique from 2 anchors placed in the base of the coracoid and coracoacromial ligament transfer from the acromion to lateral end of clavicle. The technique is identical to our open technique and those published previously by Imhoff. Post-operatively the patients were immobilised for six weeks, followed by an active rehabilitation programme and return to work and sports at 3 months. Results. We have currently performed this technique in 12 patients, all male. The average age at operation was 25.8yrs at a mean interval of 11 months post-injury. The mean Constant score pre-operatively was 49 (44-54). The mean 3 month post-operative Constant score was 88.6 (84-96). There have been no complications, and the 2 professional sportsmen within our cohort returned to full contact at 3 months. Due to an irreducible clavicle, one patient required an open excision of lateral clavicle, with the rest of the procedure performed arthroscopically. Discussion. Arthroscopic Weaver-Dunn has a number of advantages over the corresponding open procedure. It avoids the detachment of deltoid needed to gain exposure and also the morbidity from the wound. From our experience it enables patients to regain their function more rapidly with an earlier return to sporting activities. Conclusion. The early results from our initial experience have been excellent, with no complications. With this technique an anatomic reconstruction can be achieved with excellent cosmesis, low morbidity and potentially accelerated rehabilitation

We report a prospective study of 46 patients with acute complete dislocation of the acromioclavicular joint. They were all treated by suture of the deltoid and trapezius over the clavicle with no repair of the coracoclavicular ligaments, using only temporary fixation with two wires. At operation 43 patients (93.5%) had damage to the trapezius or deltoid or both. The coracoclavicular ligaments were intact in six (13%). Follow-up was from 2 to 7.9 years (mean 5.8), and at the latest review only five patients (10.9%) had redisplacement, due to premature removal of wires for infection in one, to migration of the wires in another and to partial failure of the muscle repair in three. We consider that the deltoid and trapezius attachments are important clinical stabilizers of the clavicle and that their repair, with reinforcement, is a useful addition to any method of surgical treatment

Aims: To evaluate the functional outcome and patient satisfaction following the modified Weaver -Dunn procedure for the treatment of chronic acromioclavicular joint (ACJ) disruption. Methods: A cohort of 16 patients treated surgically for chronic, symptomatic ACJ disruption (Rockwood type 3 to 5) between 1992 and 2001 is reviewed. The constant – Murley functional shoulder scoring system and patients satisfaction was assessed at the latest follow-up evaluation. Results: All patients undergone modified Weaver – Dunn procedure which consists of excision of lateral end of clavicle, bone block transfer of corocoacromial ligament stabilized with 2 mm K-wires and Nylon tape or Ethibond suture to maintain acromioclavicular alignment. There were 13 males and 2 females with a mean age of 36 years (range: 17 to 58). 30% patients had sporting related injury. Mean delay from onset of symptoms to surgery was 30 months. 4 patients had failed primary operation to the ACJ. 2 patients had concomitant fibrous non-union of lateral 1/3 of clavicle. All the patients were re-examined at 2–11 years after surgery (mean 5.8 years). The mean Constant Murley scores were 86 (range: 70 to 100). Results were good to excellent in 75 % of cases. Complications consisted of 1 K-wire migration, 2 superficial wound infections, 1 deep infection and 3 failure of reconstruction. The latter were related to salvage procedure in previous failed primary operations. Conclusions Acromioclavicular realignment can be achieved using Nylon tape or Ethibond sutures and 2 stout K-wires. The latter appears to enhance the pull- out strength of bone block transfers and allows bone – to bone union. We recommend this modification of technique to ensure acromioclavicular alignment. This technique is not intended for salvage procedure, as failure rate is high

This study aimed to describe the morphology of the coracoid process and determine the frequency of commonly observed patterns. The second purpose was to determine the location of inferior tunnel exit with superior based tunnel drilling and the superior tunnel exit with inferior based tunnel drilling.

A sample of 100 dry scapulae for the morphology aspect and 52 cadaveric embalmed shoulders for tunnel drilling were used. The coracoid process was described qualitatively and categorized into 6 different shapes. A transcoracoid tunnel was drilled at the centre of the base. Twenty-six shoulders were used for the superior-inferior tunnel drilling approach and 26 for the inferior-superior tunnel drilling approach. The distances to the margins of the coracoid process, from both the entry and exit points of the tunnel, were measured.

Eight coracoid processes were of convex shape, 31 of hooked shape, 18 of irregular shape, 18 of narrow shape, 25 of straight shape, and 13 of wide shape. The mean difference for the distances between superior entry and inferior exit from the apex was Powered by Editorial Manager® and ProduXion Manager® from Aries Systems Corporation 3.65+3.51mm (p=0.002); 1.57+2.27mm for the lateral border (p=0.40) and 5.53+3.45mm for the medial border (p=0.001). The mean difference for the distances between inferior entry and superior exit from the apex was 16.95+3.11mm (p=0.0001); 6.51+3.2mm for the lateral border (p=0.40) and 1.03+2.32 mm for the medial border (p=0.045).

The most common coracoid process shape observed was a hooked pattern. Both superior to inferior and inferior to superior tunnel drilling directed the tunnel from a more anterior and medial entry to a posterior-lateral exit. Superior to inferior drilling resulted in a more posteriorly angled tunnel. With inferior to superior tunnel drilling cortical breaks were observed at the inferior and medial margin of the tunnel.

We present 2 year results of a prospective natural history study of Type III Acromioclaviclular joint dislocation (ACJD) treated non-operatively. Previous natural history studies are compromised by inconsistent definitions of the grade of injury and non-validated scoring tools; they do not identify which patients will have ongoing symptoms. This trial documents the strength and subjective recovery over time, and identifies risk factors for poor outcome and need for surgery.

Patients with Rockwood Type III ACJD received a standardised rehabilitation protocol (6 sessions of physiotherapy). Clinical assessment was performed at presentation, 3, 6, 12 and 24 months after injury, including isometric strength testing, pain (VAS/10) and subjective scores – Subjective percentage of normal (SPON), American Shoulder and Elbow (ASES), Oxford Shoulder Score (OSS) and Quick Disabilities of Arm Shoulder and Hand (qDASH).

28 male patients were recruited, 26 reached 12, and 9 to 24 months follow up. Two required surgery and one emigrated. The mean age was 39 (15 to 67). Initial mean pain was 3/10, SPON 51% (6–95) and strength was 76% of the other side. By 3 months mean subjective recovery was 70% and strength 90%. Strength recovered to 99% of normal by 12 months but subjective scores remained at mean 90%; by 24 months subjective scores were mean 94%. 2 patients had subjective scores <80%.

There was a wide range of initial subjective scores and weakness after Type III ACJD. 95% of strength had recovered by 6 months and subjective scores recovered to 94% of normal by 24 months. 4 patients (14%) did poorly with 2 requiring surgery. Low initial subjective score and inability to abduct the arm at presentation were risk factors for a poor outcome.

We present an all arthroscopic technique for modified Weaver Dunn reconstruction of symptomatic chronic type III ACJ joint injuries. Over a one year period we performed 12 all arthroscopic modified Weaver-Dunn procedures. All patients had failed non-operative management for at least 6 months. The technique involved excision of the lateral end of clavicle, stabilisation with a suture cerclage technique from 2 anchors placed in the base of the coracoid and coracoacromial ligament transfer from the acromion to lateral end of clavicle. Post-operatively the patients were immobilised for six weeks, followed by an active rehabilitation programme and return to work and sports at 3 months. We have currently performed this technique in 12 patients, all male. The average age at operation was 25.8yrs at a mean interval of 11 months post injury. The mean Constant score preoperatively was 49 (44–54). The mean 3 month postoperative Constant score was 88.6 (84–96). There have been no complications, and the 2 professional sportsmen within our cohort returned to full contact at 3 months. Due to an irreducible clavicle, one patient required an open excision of lateral clavicle, with the rest of the procedure performed arthroscopically. Arthroscopic Weaver-Dunn has a number of advantages over the corresponding open procedure. It avoids the detachment of deltoid needed to gain exposure and also the morbidity from the wound. From our experience is that it enables patients to regain their function more rapidly with an earlier return to sporting activities. The early results from our initial experience have been excellent, with no complications. With this technique an anatomic reconstruction can be achieved with excellent cosmesis, low morbidity and potentially accelerated rehabilitation.

Osteolysis has been reported following ACJ reconstruction with a synthetic graft. We present the first study into its prevalence and pattern, and its effect on patient outcome.

Patients who underwent treatment of an unstable ACJ injury using the Surgilig/LockDown implant were identified via our database. Patients were invited to attend a dedicated outpatient clinic for clinical examination, radiographic evaluation, and completion of outcome scoring. Patients who were unable to attend were contacted by telephone.

49 patients were identified. We assessed 21 clinically at a mean of 7 years post-procedure (range 3–11 years). All had radiographic evidence of distal clavicle and coracoid osteolysis. We did not observe progression of osteolysis from the final post-operative radiographs. A further 13 were contacted by phone. The mean Oxford Shoulder Score was 43 (range 31–48) and mean DASH score was 8.5 (range 3–71). The average Patient Global Impression of Change score was 6 (range 2–7). Six patients underwent removal of a prominent screw at a mean of 2 years after surgery; the pattern of osteolysis was no different in this group. All patients had comparable abduction, forward flexion and internal rotation to their uninjured shoulder. We did not observe any relationship between patient demographics, position of implant or etiology and the pattern of osteolysis.

Osteolysis of the distal clavicle and/or coracoid is always seen following synthetic reconstruction of the ACJ using this implant, but is non-progressive. Range of shoulder movement is largely unaffected and patient outcomes remain high.

Aims. There is a lack of long-term data for minimally invasive acromioclavicular (AC) joint repair. Furthermore, it is not clear if good early clinical results can be maintained over time. The purpose of this study was to report long-term results of minimally invasive AC joint reconstruction (MINAR) and compare it to corresponding short-term data. Methods. We assessed patients with a follow-up of at least five years after minimally invasive flip-button repair for high-grade AC joint dislocation. The clinical outcome was evaluated using the Constant score and a questionnaire. Ultrasound determined the coracoclavicular (CC) distance. Results of the current follow-up were compared to the short-term results of the same cohort. Results. A total of 50 patients (three females, 47 males) were successfully followed up for a minimum of five years. The mean follow-up was 7.7 years (63 months to 132 months). The overall Constant score was 94.4 points (54 to 100) versus 97.7 points (83 to 100) for the contralateral side showing a significant difference for the operated shoulder (p = 0.013) The mean difference in the CC distance between the operated and the contralateral shoulder was 3.7 mm (0.2 to 7.8; p = 0.010). In total, 16% (n = 8) of patients showed recurrent instability. All these cases were performed within the first 16 months after introduction of this technique. A total of 84% (n = 42) of the patients were able to return to their previous occupations and sport activities. Comparison of short-term and long-term results revealed no significant difference for the Constant Score (p = 0.348) and the CC distance (p = 0.974). Conclusion. The clinical outcome of MINAR is good to excellent after long-term follow-up and no significant differences were found compared to short-term results. We therefore suggest this is a reliable technique for surgical treatment of high-grade AC joint dislocation. Cite this article: Bone Joint J 2020;102-B(7):918–924

The June 2024 Shoulder & Elbow Roundup. 360. looks at: Reverse versus anatomical total shoulder replacement for osteoarthritis? A UK national picture; Acute rehabilitation following traumatic anterior shoulder dislocation (ARTISAN): pragmatic, multicentre, randomized controlled trial; acid for rotator cuff repair: a systematic review and meta-analysis of randomized controlled trials; Metal or ceramic humeral head total shoulder arthroplasty: an analysis of data from the National Joint Registry; Platelet-rich plasma has better results for long-term functional improvement and pain relief for lateral epicondylitis: a systematic review and meta-analysis of randomized controlled trials; Quantitative fatty infiltration and 3D muscle volume after nonoperative treatment of symptomatic rotator cuff tears: a prospective MRI study of 79 patients; Locking plates for non-osteoporotic proximal humeral fractures in the long term; A systematic review of the treatment of primary acromioclavicular joint osteoarthritis

In older patients (>75 years of age), with an intact rotator cuff, requiring a total shoulder replacement (TSR) there is, at present, uncertainty whether an anatomic TSR (aTSR) or a reverse TSR (rTSR) is best for the patient. This comparison study of same age patients aims to assess clinical and radiological outcomes of older patients (≥75 years) who received either an aTSR or a rTSA. Consecutive patients with a minimum age of 75 years who received an aTSR (n=44) or rTSR (n=51) were prospectively studied. Pre- and postoperative clinical evaluations included the ASES score, Constant score, SPADI score, DASH score, range of motion (ROM) and pain and patient satisfaction for a follow-up of 2 years. Radiological assessment identified glenoid and humeral component osteolysis, including notching with a rTSR. Postoperative improvement for ROM and all clinical assessment scores for both groups was found. There were significantly better patient reported outcome scores (PROMs) in the aTSR group compared with the rTSR patients (p<0.001). Both groups had only minor osteolysis on radiographs. No revisions were required in either group. The main complications were scapular stress fractures for the rTSR patients and acromioclavicular joint pain for both groups. This study of older patients (>75 years) demonstrated that an aTSR for a judiciously selected patient with good rotator cuff muscles can lead to a better clinical outcome and less early complications than a rTSR

Osteoarthritis (OA) is the most common disorder of the Sternoclavicular Joint (SCJ). In our case-control study, we evaluated the relationship between clavicular length and OA at the SCJ. CT scans of adults presenting to the Emergency Department of our hospital were examined to look for OA, defined as the presence of osteophytes, subchondral cysts, or cortical sclerosis at the SCJ. Medial-most and lateral-most points of the clavicle were marked on the slices passing through the SC and AC joints respectively. Using x, y, and z-axis coordinates from the DICOM metadata, clavicular length was calculated as the distance between these two points with 3D geometry. Preliminary data of 334 SCJs from 167 patients (64% males, 36% females) with a mean age of 48.5 ± 20.5 years were analysed. Multivariate regression models revealed that age and clavicular length were independent risk factors for OA while gender did not reach statistical significance. A 1mm increase in length was associated with 9% and 7% reduction in the odds of developing OA on the left and the right respectively. Comparing the mean clavicular length using t-test showed a significantly shorter clavicle in the group with OA (145.8 vs 152.7, p=0.0001, left and 144.2 vs 150.3, p=0.0007, right). Our data suggest that the risk of developing OA at the SCJ is higher for shorter clavicles. This could be of clinical relevance in cases of clavicular fracture where clavicular shortening might lead to a higher risk of developing OA. Biomechanical studies are needed to find out the mechanism of this effect

Many surgical procedures have been put forth for the management of AC disruption none of them proved to be preferred surgical procedure. To provide better surgical stabilization and functional outcome for the management of AC joint disruption. Study period from 2015 to 2017, total of 14 patients presented with AC joint disruption, patients underwent ethibond fixation and reinforcement with K wire. Out of 14 patients 10 patients participated in the study. The procedure was stabilization of the AC joint by passing the ethibond suture material around the coracoid process and passing through two drill holes made in the clavicle at the attachment of the coracoclavicular ligament. The stabilization was reinforced by passing K wire through the acromion into the lateral end clavicle. After 3 weeks of surgery, K wire was removed and patient was mobilized. Results were assessed by Constant – Murley score. Patients were followed up for 1 year, the mean Constant – Murley score was 86. One patient had infection at the site of k wire entry, another patient had decreased range of movements at the shoulder. No implant back out, no incidence of dislocation were observed. This method proves to be better alternative fixation as compared to only K wire fixation and also it avoids the blow out of clavicle while drilling to pass semitendon as clavicle in Indian population is relatively thinner. This procedure offers better stabilization, less morbidity and improved functional outcome as compared to the other various surgical procedures

Aims. The aim of this study was to examine the recent trend in delivery of arthroscopic subacromial decompression (ASD) in Scotland and to determine if this varies by geographical location. Methods. Scottish Morbidity Records were reviewed retrospectively between March 2014 and April 2018 to identify records for every admission to each NHS hospital. The Office of Population Censuses and Surveys (OPCS-4) surgical codes were used to identify patients undergoing primary ASD. Patients who underwent acromioclavicular joint excision (ACJE) and rotator cuff repair (RCR) were identified and grouped separately. Procedure rates were age and sex standardized against the European standard population. Results. During the study period the number of ASDs fell by 649 cases (29%) from 2,217 in the first year to 1,568 in the final year. The standardized annual procedure rate fell from 41.6 (95% confidence interval (CI) 39.9 to 43.4) to 28.9 (95% CI 27.4 to 30.3) per 100,000. The greatest reduction occurred between 2017 and 2018. The number of ACJEs rose from 41 to 188 (a 3.59-fold increase). The number of RCRs fell from 655 to 560 (-15%). In the year 2017 to 2018 there were four (28.6%) Scottish NHS board areas where the ASD rate was greater than 3 standard deviations (SDs) from the national average, and two (14.3%) NHS boards where the rate was less than 3 SDs from the national average. Conclusion. There has been a clear decline in the rate of ASD in Scotland since 2014. Over the same period there has been an increase in the rate of ACJE. The greatest decline occurred between 2017 and 2018, corresponding to the publication of epidemiological studies demonstrating a rise in ASD, and awareness of studies which questioned the benefit of ASD. This paper demonstrates the potential impact of information from epidemiological studies, referral guidelines, and well-designed large multicentre randomized controlled trials on clinical practice. Cite this article: Bone Joint J 2020;102-B(3):360–364

The purpose of this study was to review the long-term outcomes of a previously reported prospective series of 46 type III acromioclavicular dislocations. These were treated surgically with temporary fixation of the acromioclavicular joint with wires, repair of the acromioclavicular ligaments, and overlapped suture of the deltoid and trapezius muscles. Of the 46 patients, one had died, four could not be traced, and three declined to return for follow-up, leaving 38 patients in the study. There were 36 men and two women, with a mean age at follow-up of 57.3 years (41 to 71). The mean follow-up was 24.2 years (21 to 26). Patients were evaluated using the Imatani and University of California, Los Angeles (UCLA) scoring systems. Their subjective status was assessed using the Disabilities of the Arm, Shoulder and Hand and Simple Shoulder Test questionnaires, and a visual analogue scale for patient satisfaction. The examination included radiographs of the shoulder. At a follow-up of 21 years, the results were satisfactory in 35 (92.1%) patients and unsatisfactory in three (7.9%). In total, 35 patients (92.1%) reported no pain, one slight pain, and two moderate pain. All except two patients had a full range of shoulder movement compared with the opposite side. Unsatisfactory results were the result of early redisplacement in two patients, and osteoarthritis without redisplacement in one. According to the Imatani and UCLA scores, there was no difference between the operated shoulder and the opposite shoulder (p > 0.05). Given the same situation, 35 (92.1%) patients would opt for the same surgical treatment again. Operative treatment of type III acromioclavicular joint injuries produces satisfactory long-term results

Introduction We have evaluated the early outcome of arthroscopic excision of the distal clavicle (Mumford procedure) for acromioclavicular joint pathology. Method Forty-one patients with acromioclavicular joint pathology underwent arthroscopic distal clavicle resections between 2002 and 2004. Preoperatively, all patients had acromioclavicular joint tenderness, 90% had a positive horizontal adduction test and 62% had a positive O’Brien’s AC compression test. All provocative signs were abolished on re-examination after acromio-clavicular joint injection. Surgery was indicated with failure of conservative management. Surgery was performed through a subacromial approach to the acromio-clavicular joint, using a Acromionizer (Smith-Nephew Dyonics, Andover, MA) burr through the anterosuperior portal. A supplementary Neviaser portal was used in 9 cases. Patients were clinically assessed at average of 18 months post surgery (range; 9–36). Functional rating was obtained with the Constant Score, WORC score and the Oxford Score. Results. Thirty-five patients (85%) reported none or minimal pain. 81% were negative for provocative AC signs. Internal rotation increased by average of 5 vertebrae levels. The Constant, the WORC and Oxford Scores were improved by 23 points, 674 points and 16 points respectively (p< 0.05). 71% reported good or excellent function by the 3. rd. post-operative month. Conclusion The arthroscopic Mumford procedure effectively treats acromioclavicular joint pathology. The procedure has low associated morbidity and high patient satisfaction

The purpose of this study was to determine the motion pattern of the Acromio-Clavicular (AC) joint in a normal shoulder with the use of the new 4 Dimensional CT scan. From April 2010 till January 2011 fourteen healthy volunteers (4 female, 10 male)(mean age 42±11 years) with no previous history of shoulder complaints participated in this study. The 4D CT machine scans motion, allowing a 3D reconstruction of the shoulder joint and its movements. Patients were positioned supine with their arm elevated 90° in the sagittal plane. During the 7 seconds duration of the scan they adducted their arm at that level and then elevated their arm upwards resisted by the gantry for 4 seconds, in this way simulating the clinical Bell-van Riet test for AC pathology. In the transverse plane the mean AC joint space measured in the neutral position is 1.8±0.5 mm. While adducting the arm the AC joint narrows 0.0±0.4 mm (with a positive value being narrowing and a negative value widening). On resisted elevation the joint space is narrowed 0.2±0.6 mm. The mean antero-posterior (AP) translation in this same plane is 0.2±2.2 mm on adduction (with a positive value being posterior translation of the clavicle and a negative value anterior translation) and 0.4±2.9 mm on resisted elevation. The new 4D CT scan demonstrates that the AC joint in a normal shoulder mainly translates in an AP direction, rather than being narrowed or widened, when the arm is adducted (with or without resisted active elevation)

Airn: Treatment of acromioclavicular joint dislocations depends on the type of the dislocation and the patients symptoms. We present the results of surgical treatment with transfer of the acromical end of coracoacromial ligament in the distal end of the clavicle. (The Weaver Dunn procedure). Material – Method: 32 patients with acromioclavicular dislocation type III, IV and V according Rockwood, 20 acute and 12 chronic, were treated with open reduction and stabilization of the distal end of clavicle and transfer of the coracoacromial ligament. They were 26 men and 6 women, the average age was 28 years. The indications for the operation were: deformity, pain and numbness. On 28 patients resection of the distal end of the clavicle was performed but on 4 acute dislocations the stabilization was made without osteotomy. Surgery was performed with the patients in the beach chair position and with a horizontal skin incision above the acromioclavicular joint. The length of the coracoacromial ligament was determinant to achieved reduction. The soft tissues were double breasted above the acromioclavicular joint. After surgery the limb was placed in a sling for 15 days and then complete mobilization exercises was began. Draft weight was avoided for 3 months. Results: The average length of follow up was 4 years. All patients had almost no pain and full range of motion. Constant score was above 80 in all cases. Full range of motion was obtained until 2 months after operation. In 3 cases the primary reduction was not fully achieved. In 3 other cases loss of the primary reduction was observed due to suture rupture. In these cases the displacement was significantly minor than pre operatively. 15 patients had developed ectopic ossification bellow the acromioclavicular joint without consequence in the shoulder motion. The resection of the distal end of the clavicle did not alter the results. Conclusion: The operation offers low percentage of complications and quick rehabilitation. It is recommended in acute as well in chronic injuries with very good results. The good results were not varied with time during follow up. Advantage of this operation represents the no use of metals. The pull angle of the ligament might create an anterior sublaxation during reduction of the dislocation, but this does not influence the results

Posterior dislocation of the acromioclavicular joint with the lateral end of the clavicle locked behind the acromion has only rarely been described. This paper present such a case diagnosed two weeks after the shoulder was injured in an accident. The clavicle was locked behind the articular surface of the acromion, restricting the movement of the shoulder and causing considerable pain. Anteroposterior radiographs showed a high-riding clavicle but no gap in the joint, but the axial view showed the dislocation. At operation the coracoclavicular ligaments were found overstretched but not ruptured. As reduction of the acromioclavicular joint was not possible, the lateral end of the clavicle was resected. Although the result was perfect, we consider the correct treatment should be early closed or open reduction of the acromioclavicular joint

In Neer type II (Robinson type 3B) fractures of the distal clavicle the medial fragment is detached from the coracoclavicular ligaments and displaced upwards, whereas the lateral fragment, which is usually small, maintains its position. Several fixation techniques have been suggested to treat this fracture. The aim of this study was to assess the outcome of patients with type II distal clavicle fractures treated with coracoclavicular suture fixation using three loops of Ethibond. This prospective study included 14 patients with Neer type II fractures treated with open reduction and coracoclavicular fixation. Ethibond sutures were passed under the coracoid and around the clavicle (UCAC loop) without making any drill holes in the proximal or distal fragments. There were 11 men and three women with a mean age of 34.57 years (29 to 41). Patients were followed for a mean of 24.64 months (14 to 31) and evaluated radiologically and clinically using the Constant score. Fracture union was obtained in 13 patients at a mean of 18.23 weeks (13 to 23) and the mean Constant score was 96.07 (91 to 100). One patient developed an asymptomatic fibrous nonunion at one year. This study suggests that open reduction and internal fixation of unstable distal clavicle fractures using UCAC loops can provide rigid fixation and lead to bony union. This technique avoids using metal hardware, preserves the acromioclavicular joint and provides adequate stability with excellent results. Cite this article: Bone Joint J 2013;95-B:983–7

Introduction: Since the first repair of coracoclavicular ligament complex in 1886 there have been more than sixty operative procedures described in the literature. Open methods of reduction and stabilization of AC joint are associated with increased morbidity and violation to the surrounding soft tissue and result in less cosmetic scar and possibly a further surgery to remove the hardware. We propose an arthroscopic technique using Tightrope (Arthrex) to reduce and stabilize the joint with low morbidity. Materials and Methods: We reviewed 26 (21 male, 5 female) consecutive patient’s (notes, radiographs and Oxford shoulder score) who underwent arthroscopic stabilization of AC joint. The average age was 33 years (min.22, max.53). The average period from injury to surgery was nine days. The primary indication for surgery was grade IV to VI injuries and grade III injuries in upper extremity athletes and workers with the need for overhead activities. Patient’s satisfaction and functional improvement were observed. Results: Short-term preliminary results are encouraging and show an excellent functional outcome without significant residual pain. We had four radiological recurrences of the deformity, two of which were completely asymptomatic, one associated with painless clicking and one requested revision surgery (same technique) to improve cosmesis. There were no infections or neurovascular injury in this series. Conclusion: This method of surgically stabilizing the AC joint is minimally invasive, done as a day case and yielding satisfactory results. Among the advantages of the technique are that it does not require specific expensive instrumentation and offers the possibility of visualizing the glenohumeral joint for associated lesions. However, there is a learning curve and experience with arthroscopic procedures is essential

The February 2014 Shoulder & Elbow Roundup. 360 . looks at: whether arthroscopic acromioplasty is a cost-effective intervention; shockwave therapy in cuff tear; whether microfracture relieves short-term pain in cuff repair; the promising early results from L-PRF augmented cuff repairs; rehabilitation following cuff repair; supination strength following biceps tendon rupture; whether longer is better in humeral components; fatty degeneration in a rodent model; and the controversial acromioclavicular joint dislocation

Aims: We studied the prevalence of calciþc tendinopathy in asymptomatic subjects and the relationship between calciþc deposits and the anatomopathological characteristic of coracoacromial arch. Methods: 222 right-handed volunteers underwent x-ray examination of the right shoulder. We measured the acromiohumeral distance (AHD) and evaluated the acromion shape and the degenerative changes of the GH and AC joints. We measured the size of the deposits and classiþed the calciþcations based on their location, shape and neatness. The subjects with deposits were clinically evaluated and underwent a second x-ray study after 14 months. Results: 11 subjects (5%) had calciþcation. The latter was in the substance of supraspinatus in 5(mean age 45 yrs) and at cuff insertion in 6 (66 yrs). The deposits measured 0.7±0.3cm (avg). There were 3 linear and 2 beanlike intratendinous calciþcations and 5 linear and 1 beanlike deposits at tendon insertion. Calciþcations had well-deþned margins. AHD, acromion shape, arthritic of the GH or AC joint were unrelated to the presence of calciþcations. No subject showed evidence of cuff tear. Intratendinous deposit decreased in size in 2 cases and disappeared in 1. Conclusions: 5% of asymptomatic subjects have calciþcations. Calciþcations are always small and well-deþned. Morphology and changes of the cora-coacromial arch or the GH or AC joint donñt inßuence the deposition of calcium. Our study suggests that calciþcations may decrease in size or disappear without completion of Uhthoffñs cycle

The December 2012 Shoulder & Elbow Roundup. 360. looks at: whether allograft is biomechanically superior in large Hill-Sachs defects; glenoid bone loss in shoulder dislocators; repairing irreparable cuff tears; acromioclavicular joint injuries; whether more radiographs equals more surgery; whether reverse TSR is cheaper than hemiarthroplasty; autologous chondrocyte implantation in the shoulder; and fracture of the clavicle