Aims. The risk factors for recurrent instability (RI) following a primary traumatic anterior shoulder dislocation (PTASD) remain unclear. In this study, we aimed to determine the rate of RI in a large cohort of patients managed nonoperatively after PTASD and to develop a clinical prediction model. Methods. A total of 1,293 patients with PTASD managed nonoperatively were identified from a trauma database (mean age 23.3 years (15 to 35); 14.3% female). We assessed the prevalence of RI, and used multivariate regression modelling to evaluate which demographic- and injury-related factors were independently predictive for its occurrence. Results. The overall rate of RI at a mean follow-up of 34.4 months (SD 47.0) was 62.8% (n = 812), with 81.0% (n = 658) experiencing their first recurrence within two years of PTASD. The median time for recurrence was 9.8 months (IQR 3.9 to 19.4). Independent predictors increasing risk of RI included male sex (p < 0.001), younger age at PTASD (p < 0.001), participation in contact sport (p < 0.001), and the presence of a bony Bankart (BB) lesion (p = 0.028). Greater tuberosity fracture (GTF) was protective (p < 0.001). However, the discriminative ability of the resulting predictive model for two-year risk of RI was poor (area under the curve (AUC) 0.672). A subset analysis excluding identifiable radiological predictors of BB and GTF worsened the predictive ability (AUC 0.646). Conclusion. This study clarifies the prevalence and risk factors for RI following PTASD in a large, unselected patient cohort. Although these data permitted the development of a predictive tool for RI, its discriminative ability was poor. Predicting RI remains challenging, and as-yet-undetermined risk factors may be important in determining the risk. Cite this article: Bone Joint J 2024;106-B(10):1111–1117

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

The April 2024 Shoulder & Elbow Roundup. 360. looks at: Acute rehabilitation following traumatic anterior shoulder dislocation (ARTISAN): pragmatic, multicentre, randomized controlled trial; Prevalence and predisposing factors of neuropathic pain in patients with rotator cuff tears; Are two plates better than one? The clavicle fracture reimagined; A single cell atlas of frozen shoulder capsule identifies features associated with inflammatory fibrosis resolution; Complication rates and deprivation go hand in hand with total shoulder arthroplasty; Longitudinal instability injuries of the forearm; A better than “best-fit circle” method for glenoid bone loss assessment; 3D supraspinatus muscle volume and intramuscular fatty infiltration after arthroscopic rotator cuff repair

The February 2024 Shoulder & Elbow Roundup. 360. looks at: Does indomethacin prevent heterotopic ossification following elbow fracture fixation?; Arthroscopic capsular shift in atraumatic shoulder joint instability; Ultrasound-guided lavage with corticosteroid injection versus sham; Combined surgical and exercise-based interventions following primary traumatic anterior shoulder dislocation: a systematic review and meta-analysis; Are vascularized fibula autografts a long-lasting reconstruction after intercalary resection of the humerus for primary bone tumours?; Anatomical versus reverse total shoulder arthroplasty with limited forward elevation; Tension band or plate fixation for simple displaced olecranon fractures?; Is long-term follow-up and monitoring in shoulder and elbow arthroplasty needed?

The December 2023 Shoulder & Elbow Roundup³⁶⁰ looks at: Clavicle fractures: is the evidence changing practice?; Humeral shaft fractures, and another meta-analysis…let’s wait for the trials now!; Hemiarthroplasty or total elbow arthroplasty for distal humeral fractures…what does the registry say?; What to do with a first-time shoulder dislocation?; Deprivation indices and minimal clinically important difference for patient-reported outcomes after arthroscopic rotator cuff repair; Prospective randomized clinical trial of arthroscopic repair versus debridement for partial subscapularis tears; Long-term follow-up following closed reduction and early movement for simple dislocation of the elbow; Sternoclavicular joint reconstruction for traumatic acute and chronic anterior and posterior instability.

Introduction. The highest incidence of recurrent shoulder instability is in young patients, surgical repair can reduce recurrent instability and improve shoulder function. This has led to an increasing rate of stabilisation and use of MRI to identify associated injuries in first time dislocations. MRA has the benefit of distending the joint and is becoming increasingly used. The aim of this study is to establish the sensitivity and specificity of MRA in the investigation of patients with traumatic anterior shoulder dislocations. Methods. A retrospective analysis of patients undergoing both magnetic resonance arthrography and arthroscopy after a traumatic anterior shoulder dislocation between January 2011 and 2014. Images were interpreted by eight musculoskeletal radiologists and arthroscopic findings were obtained from surgical notes and used as a reference. The sensitivity, specificity and positive predictive value for the different injuries were calculated. Results. 60 patients were reviewed; 88% were male, mean age was 28 years (range 18 to 50) and 27% were primary dislocations. The overall sensitivity and specificity of MRA to all associated injuries was 0.9 (CI 0.83–0.95) and 0.94 (CI 0.9–0.96) retrospectively. The lowest sensitivity was seen in osseous Bankart 0.8 (CI 0.44–0.96) and SLAP lesions 0.5 (CI 0.14–0.86). Conclusion. MRA has a high sensitivity when used to identify associated injuries in shoulder dislocation although in 8 patients (13%) arthroscopy identified an additional injury. The overall agreement between MRA and arthroscopic findings was good but identification of GHL and rotator cuff injuries was poor. Level of Evidence. IV. Conflict of Interests. The authors confirm that they have no relevant financial disclosures or conflicts of interest. Ethical approval was not sought as this was a systematic review

In a decidedly upper limb themed series of reviews this edition of Cochrane Corner summarises four new and updated reviews published by the Cochrane Bone, Joint and Muscle Trauma Group over the last few months. The tenacious reviewers at the Cochrane collaboration have turned their beady eyes to conservative treatments for shoulder dislocations and clavicle fractures along with evaluation of femoral nerve blocks in knee replacement and how to best manage entrapment injuries in children.

The ideal treatment for traumatic anterior dislocation of the shoulder in the skeletally immature patient is controversial. The aim of this study is to evaluate the outcomes after either conservative and/or surgical treatment using the Latarjet technique. A retrospective series of 49 out of 80 patients were reviewed. We found no significant differences between either treatment method regarding functional scores and pain levels. Although not statistically significant, post-surgical patients showed better signs of shoulder stability than others who have a higher rate of recurrence. Further, 92% of the post-surgical group had returned to the same level of activity versus 52% in the non-surgically treated group. We found no contraindications to operate on a skeletally immature patient.

Cite this article: Bone Joint J 2014;96-B:354–9.

Background. Acute anterior dislocation of the glenohumeral joint may be complicated by injury to neighboring structures. These injuries are best considered a spectrum of injury ranging from an isolated dislocation (unifocal injury), through injuries associated with either nerve or osteoligamentous injury (bifocal injury), to injuries where there is evidence of both nerve and osteoligamentous injury. The latter combination has previously been described as the “terrible triad,” although we prefer the term “trifocal,” recognizing that this is the more severe end of an injury spectrum and avoiding confusion with the terrible triad of the elbow. We evaluated the prevalence and risk factors for nerve and osteoligamentous injuries associated with an acute anterior glenohumeral dislocation in a large consecutive series of patients treated in our Unit. Materials and Methods. 3626 consecutive adults (mean age 48yrs) with primary traumatic anterior shoulder dislocation treated at our unit were included. All patients were interviewed and examined by an orthopaedic trauma surgeon and underwent radiological assessment within a week of injury. Where rotator cuff injury or radiologically-occult greater tuberosity fracture was suspected, urgent ultrasonography was used. Deficits in neurovascular function were assessed clinically, with electrophysiological testing reserved for equivocal cases. Results. Unifocal injuries occurred in 2228 (61.4%) of patients. There was a bimodal distribution in the prevalence of these injuries, with peaks in the 20–29 age cohort (34.4% patients) and after the age of 60 years (23.0% patients). Of the 1120 (30.9%) patients with bifocal dislocations, 920 (82.1%) patients had an associated osteotendinous injury and 200 (17.9%) patients had an associated nerve injury. Trifocal injuries occurred in 278 (7.7%) of cases. In bifocal and trifocal injuries, rotator cuff tears and fractures of the greater tuberosity or glenoid were the most frequent osteotendinous injuries. The axillary nerve was most frequently injured neurological structure. We were unable to elicit any significant statistical differences between bifocal and trifocal injuries with regards to patient demographics. However, when compared with unifocal injuries, bifocal or trifocal injuries were more likely to occur in older, female patients resulting from low energy falls (p<0.05). Conclusions. We present the largest series reporting the epidemiology of injury patterns related to traumatic anterior shoulder dislocation. Increased understanding and awareness of these injuries among clinicians will improve diagnosis and facilitate appropriate treatment

Aims. To discover how the management of traumatic anterior shoulder dislocation in the young patient (17-25) has changed, if at all, over the past six years. Methods. The same postal questionnaire was sent in 2002 and 2009 to 164 shoulder surgeons. Questions were asked about initial reduction, investigation undertaken, timing of surgery, preferred stabilisation procedure, period of immobilisation and rehabilitation programme instigated in first-time and recurrent traumatic dislocators. Summary of Results. Response rate - 92% (2009), 83% (2002). The most likely management of a young traumatic shoulder dislocation:. Reduction under sedation in A&E by A&E doctor (80%). Apart from X-ray, no investigations are performed (80%). Immobilisation for 3 weeks, followed by physiotherapy (82%). 68% would consider stabilisation surgery for first time dislocators (especially professional sportsmen) compared to 35% (2002). Of them, nearly 90% would perform an arthroscopic stabilisation vs. 57.5% (2002). For recurrent dislocators:. 75% would consider stabilisation after a second dislocation. 85% would investigate prior to surgery, choice of investigation being MR arthrogram (52%), compared to 50% (2002). 77% would perform arthroscopic stabilisation vs. 18% (2002), commonest procedure-arthroscopic Bankart repair using biodegradable bone anchors (62% 2009 vs. 27% in 2002). Immobilisation for 3 weeks, full range of motion 1-2 months and return to contact sports 6 - 12 months. Conclusion. There has been a remarkable change in practice compared to the previous survey. A significant proportion of Orthopaedic Surgeons would consider stabilisation in young first-time dislocators instead of conservative management. Arthroscopic stabilisation is now the preferred technique compared to open stabilisation whenever possible. Surgeons are using more investigations prior to listing the patient for surgery, namely the MR arthrogram. There is also an increased use of bio-degradable anchors as compared to metallic bone anchors in 2002

Purpose: To determine whether generalized ligamentous laxity is a predisposing factor for primary traumatic anterior shoulder dislocation in young, active patients. Method: Prospective case series with age and sex matched controls. The Hospital Del Mar Criteria was utilized to measure generalized ligamentous laxity. Fifty-seven (n=57) consecutive individuals (age< 30) sustaining a primary traumatic anterior shoulder dislocation between 2003 and 2006 were examined for hyperlaxity. The control group was comprised of seventy-two (n=72) undergraduate university students without a prior history of shoulder dislocation or anterior cruciate ligament injury. Results: After adjusting for age and sex, the prevalence of hyperlaxity in the study group was 32.8% compared with 10.4% in the control group (p< 0.01). The prevalence of increased contralateral shoulder external rotation (> 85o) was 40.3% in the study group compared with 20.8% in the control group (p< 0.03). Among males, the prevalence of hyperlaxity was 28.3% in the study group and 5.3% in the controls (p< 0.01). Conclusion: Although several studies have looked at the variables affecting shoulder instability, generalized ligamentous laxity (as measured by validated criteria) has not previously been identified as a predisposing factor for primary traumatic shoulder dislocation. This study demonstrates that generalized joint laxity and increased external rotation in the contralateral shoulder were found to be more common in patients who had sustained a primary shoulder dislocation. These observations may suggest a role for shoulder-specific proprioceptive and strength training protocols in hyperlax individuals participating in high-risk sports. Furthermore, the implications of hyperlaxity on the surgical management of traumatic primary shoulder instability are uncertain

Aims: To discover how the management of traumatic anterior shoulder dislocation in the young patient (17–25) has changed, if at all, over the past six years. Methods: The same postal questionnaire was used in 2003 and 2009, sent out to 164 members of British Elbow and Shoulder Society. Questions were asked about the initial reduction, investigation undertaken, timing of any surgery, preferred stabilization procedure, arthroscopic or open, detail of surgical technique, period of immobilization and rehabilitation programme instigated in first-time and recurrent traumatic dislocators. Summary of Results: The response rate were 92% (n=151) – 2009, 83% (n=131) – 2003 The most likely management of a young traumatic shoulder dislocation in the UK would be:. Reduction under sedation in A& E by the A& E doctor (80% of respondents). Apart from X-ray, no investigations are performed (80%). Immobilisation for 3 weeks, followed by physiotherapy (82%). 68 % of respondents would consider stabilisation surgery for first time dislocators (especially professional sportsmen) compared to 35% in 2003. Out of them nearly 90% would perform an arthroscopic stabilization vs. 57.5% in 2003. For recurrent dislocators:. 75% would consider stabilisation after a second dislocation. 85% would investigate prior to surgery, choice of investigation being MR arthrogram (52%), compared to 50% in 2003 that would chose to investigate. 77% would choose to perform arthroscopic stabilisation compared to 18% in 2003, the commonest procedure being arthroscopic Bankart repair using biodegradable bone anchors (62% compared to 27% in 2003). Following surgery, immobilisation would be for 3 weeks, full range of motion at 1 to 2 months and return to contact sports at 6 to 12 months. Conclusions: There has been a remarkable change in practice compared to the previous survey. A significant proportion of Orthopaedic Surgeons would consider stabilisation in young first time dislocators instead of conservative management. Arthroscopic stabilisation is now the preferred technique compared to open stabilisation whenever possible. Surgeons are using more investigations prior to listing the patient for surgery namely the MR arthrogram. There is also an increased use of bio-degradable anchors as compared to metallic bone anchors in 2003

Traumatic anterior shoulder dislocation and sub-luxation are common injuries. But few studies have compared arthroscopic and open stabilization of the shoulder at long-term follow up. The purpose of our study is to show whether an arthroscopic approach to repair Bankart lesion can obtain the same results at long follow up as an open procedure. We analyzed 110 non-randomized consecutive shoulders in 110 patients who underwent a surgical repair of recurrent anterior shoulder instability between 1990 and 1999. Eighty-two patients were available at long term follow up (74,5% retrieval rate). In particular, 49 patients (59.8%) (group A) were treated with arthroscopic transglenoid suture (modified Caspari) between 1990 and 1995 (mean 15,7 year FU), whereas, 33 patients (40.2%) (group B) were treated with open repair between 1995 and 1999 (mean 12,7 year FU). We evaluated the patients in terms of failure rates, Rowe and UCLA scores. The failure cases in the forty-nine patients treated with arthroscopic suture were 13, six dislocations and seven subluxations. The group A had also a Rowe score: function 24.2+8.2, stability 42.4+13.9, range of movement 18.6+3.8, total score 85.0+22.46. The UCLA score was: pain 8.8+1.7, function 8.6+2.1, muscle power 9.2+1.6, total score 26.4+4.8. Of the thirty-three patients treated with open repair, three had at least one post-op dislocations and four felt sometimes subluxations. The Rowe score in group B was: function 23.6+9.7, stability 41.2+14.9, range of movement 18.3+3.9, total score 83.2+24.4. Moreover the UCLA score was: pain 8.8+1.9, function 8.8+1.9, muscle power 9.2+1.2, total score 26.9+4.2. We showed that both techniques were fairly good in treatment of shoulder instability. In our series no significant difference was observed in redislocation rate and in Rowe and UCLA scores between the two groups. The recurrence rate (subluxations and dislocations) was high in both groups: the arthroscopic group had 26.5% and the open one had 21.2%. Our recurrence rate following open repair was higher than in many studies, while the rate after arthroscopic transglenoid procedure was almost equivalent. We hypothesize that one of the reasons for these higher recurrence rates may be the long term follow up. Another cause could be our decision to include subluxation as a failure value, even if there is no agreement about. In fact we believe it to be an important disability factor in sport as in life activities. After surgery, most of the patients returned to their preinjuried activities. But at long term follow up almost all patients have stopped high level sport activity. Moreover, at this long term follow up, some patients told us a feeling of muscle weakness in the last years. In conclusion patients had good impressions about their shoulders thanks to surgery, but also because of lower functional demand

A comprehensive postal questionnaire was sent to 164 orthopaedic consultants, all members of the Brit-ish Elbow and Shoulder Society. Questions were asked about the initial reduction, investigations undertaken, timing of any surgery, preferred stabilization procedure, arthroscopic or open, detail of surgical technique, period of immobilization and rehabilitation programmes instigated in first-time and recurrent traumatic dislocators. The response rate was 83% (n=136)

The most likely treatment of a young traumatic shoulder dislocation:

It will be reduced under sedation in A& E by the A& E doctor.

On the other hand, 54% of surgeons indicated they would investigate prior to surgery, 16% said their first choice operation would be arthroscopic stabilisation, the number of dislocations normally permitted before surgery ranged from 1 to more than 3, and the period of immobilisation post operation from nil to 6 weeks.

The results reveal a wide variation in practice and no clear consensus on how to best manage these patients. Open stabilisation remains the firm favourite. Does this mean arthroscopic stabilisation is regarded as an experimental procedure?

The generally-accepted treatment for large, displaced fractures of the glenoid associated with traumatic anterior dislocation of the shoulder is operative repair. In this study, 14 consecutive patients with large (> 5 mm), displaced (> 2 mm) anteroinferior glenoid rim fractures were treated non-operatively if post-reduction radiographs showed a centred glenohumeral joint.

After a mean follow-up of 5.6 years (2.8 to 8.4), the mean Constant score and subjective shoulder value were 98% (90% to 100%) and 97% (90% to 100%), respectively. There were no redislocations or subluxations, and the apprehension test was negative. All fragments healed with an average intra-articular step of 3.0 mm (0.5 to 11). No patient had symptoms of osteoarthritis, which was mild in two shoulders and moderate in one.

Traumatic anterior dislocation of the shoulder, associated with a large displaced glenoid rim fracture can be successfully treated non-operatively, providing the glenohumeral joint is concentrically reduced on the anteroposterior radiograph.

Aim: To survey how acute, traumatic, first-time anterior shoulder dislocation (AFSD) is managed amongst trauma clinicians in the current clinical setting in UK hospitals. Design: Postal Questionnaire. Method: 228 questionnaires were sent out to list of active consultant member of the British Trauma Society practising in various hospitals around United Kingdom. Questions were laid out in two workgroups. In work-group one, an assortment of questions were asked with the emphasis on management in AFSD from the point of entry in a casualty department to departure and after-care. In workgroup two, case scenarios were included to look in the ‘aftercare’ management in three distinct age groups; young (< 25 years old), middle age (30–65 years old) and elderly (> 65 years old). Results: The response rate of the questionnaires was 51%. Twenty-two per cent of respondents have local protocol for managing AFSD. All respondents recommended pre-and post-reduction X-rays as standard practice. Most respondents favoured systemic analgesia with ‘airways monitoring’, as opposed to intra-articular anaesthesia (68 versus 9). Kocher and Hippocrates were the most popular methods of reduction. Eighty-four respondents advocated immobilisation in internal rotation compared to six in external rotation. Only a small number of respondents would perform an immediate arthroscopic stabilisation in young, fit patients presenting with this type of injury (16 of 84). Conclusion: This survey revealed the current practice of trauma clinicians in managing AFSD on the ‘front-line’. We conclude that there is significant variation in response to the issues incorporated in this survey. There is a need to address the issues of intra-articular analgesia, immobilisation technique and management of AFSD amongst young patient with regards to immediate surgical intervention. We suggest that these issues be revised and clarified, ideally in a randomised controlled clinical trial prior to the introduction of a protocol for managing this problem

Aim: The re-dislocation rates in adults (< 30 years) in the initial 12 months after first, anterior, traumatic (FAT) shoulder dislocations treated non-operatively vary from 25% to 95%. The purpose of this study was to establish if arthroscopic surgery reduces the incidence of recurrent instability (failure) after such dislocations when compared to non-operative treatment. Material and Methods: Specific search terms were used to retrieve relevant studies from various databases extending from 1966 to May 2004. Guidelines for reporting of meta-analysis, adapted from QUOROM statement were followed. Results: 13 studies involving 433 shoulders were reviewed. Group A included 84 shoulders treated by arthroscopic lavage without stabilisation. There were no subluxations. The re-dislocation rate was 14.3% (12/84). Group B had 179 shoulders treated by arthroscopic stabilisation. The incidence of subluxation was 5.02% (9/179) and dislocation was 6.14% (11/179). Failure following arthroscopic lavage (12/84 – 14.3%) was significantly higher than after arthroscopic stabilisation (20/179 – 11.2%). [p= 0.04, Relative risk = 2.32, 95% CI: 1.07 to 5.05]. Group C involved 170 shoulders treated non-operatively. The incidence of subluxation was 8% (12/150) and dislocation was 62% (93/150). The overall incidence of failure was 70% (119/170). Failure following arthroscopic intervention (32/263 – 12.2%) was significantly lower than following non-operative treatment (119/170 – 70%) [p< 0.0001, Relative risk = 0.17, 95% CI: 0.12 to 0.24]. Conclusion: Early arthroscopic surgery appears to reduce recurrent instability during the initial 12 months after FAT shoulder dislocation in young adults (< 30 years) when compared to non-operative treatment. Arthroscopic stabilisation may be considered for young, athletic patients and those involved in contact sports or defence personnel, who are at a high risk of recurrent instability after FAT shoulder dislocation. RCTs reporting on a larger number of patients with a minimum follow-up of 5 years are required before one can draw firm conclusions on the ability of arthroscopic intervention to influence the natural history of traumatic anterior shoulder dislocation

To discover how traumatic anterior shoulder dislocation in the young patient (17–25) is managed by shoulder surgeons in the UK. A comprehensive postal questionnaire was sent to 164 orthopaedic consultants, all members of BESS. Questions were asked about the initial reduction, investigations undertaken, timing of any surgery, preferred stabilization procedure, arthroscopic or open, detail of surgical technique, period of immobilization and rehabilitation programmes instigated in first-time and recur- rent traumatic dislocaters. The response rate was 82% (n=135). The most likely treatment of a young traumatic shoulder dislocation:. It will be reduced under sedation in A& E by the A& E doctor. Apart from x-ray, no investigations will be performed. It will be immobilised for 3 weeks, then given course of physiotherapy. Upon their second dislocation, they will be listed directly for an open Bankart procedure (with capsular shift as indicated) during which subscapularis will be detached and metallic bone anchors used. Following surgery, they will be immobilised for 3 to 4 weeks, before being permitted full range of movement at 2 to 3 months and allowed to return to contact sports at 6 to 12 months. On the other hand, 54% of surgeons indicated they would investigate prior to surgery, 18% said their first choice operation would be arthroscopic stabilisation, the number of dislocations normally permitted before surgery ranged from 1 to more than 4, and the period of immobilisation post operation from nil to 6 weeks. We now know how shoulder surgeons in the UK are treating this common injury. The results reveal that in Britain, we do not have a consistent approach, raising many discussion points. Open stabilisation remains the firm favourite. Does this mean arthroscopic stabilisation is regarded as an experimental procedure?