Aims. Early large treatment effects can arise in small studies, which lessen as more data accumulate. This study aimed to retrospectively examine whether early treatment effects occurred for two multicentre orthopaedic randomized controlled trials (RCTs) and explore biases related to this. Methods. Included RCTs were ProFHER (PROximal Fracture of the Humerus: Evaluation by Randomisation), a two-arm study of surgery versus non-surgical treatment for proximal humerus fractures, and UK FROST (United Kingdom Frozen Shoulder Trial), a three-arm study of two surgical and one non-surgical treatment for frozen shoulder. To determine whether early treatment effects were present, the primary outcome of Oxford Shoulder Score (OSS) was compared on forest plots for: the chief investigator’s (CI) site to the remaining sites, the first five sites opened to the other sites, and patients grouped in quintiles by randomization date. Potential for bias was assessed by comparing mean age and proportion of patients with indicators of poor outcome between included and excluded/non-consenting participants. Results. No bias in treatment effect was observed overall for the CI site, or the first five sites, compared with the remaining sites in either trial. An early treatment effect on the OSS was observed for the first quintile of participants recruited to ProFHER only (clinically relevant difference of seven points). Selection bias for age was observed in the ProFHER trial only, with slightly younger patients being recruited into the study. Both trials showed some selection bias for markers of poor prognosis, although these did not appear to change over time. Conclusion. No bias in treatment effects overall were found at the CI or early sites set-up. An early treatment effect was found in one of the two trials, which was likely a chance effect as this did not continue during the study. Selection bias was observed in both RCTs, however this was minimal and did not impact on outcome. Cite this article: Bone Jt Open 2023;4(2):96–103

Supracondylar fractures of the humerus (SCH) are one of the most common orthopaedic injuries in childhood. Numerous studies worldwide demonstrate that play equipment is a common mechanism of injury for SCH. Our study aimed to identify the prevalence of play equipment related SCH in a large population in Western Sydney. We conducted a retrospective analysis of 856 infants who suffered a SCH between 2001–2007 and were treated at The Children's Hospital at Westmead. We obtained data on patient demographics, mechanism of injury, severity of SCH (Gartland classification), and management of SCH (open reduction vs closed reduction vs. non operative management). Of the total 856 patients, 739 provided useful information for analysis. In 696 of these patients the mechanism of injury could be determined according to the patients information provided in the medical record. The mechanisms of injury were as follows: trampoline 72 (10.3%), monkey bars 58 (8.3%), slides 26 (3.7%), other playground equipment 84 (12.0%), home furniture 157 (22.6%), bikes 39 (5.6%), non-equipment related fall 260 (37.3%). Of the patient demographics, there was a significant correlation between the age groups (0–3, 4–7, 8+ years) and severity of SCH (Ï24 = 18.36, p=0.001). Fifty-two percent of Gartland type three fractures occurred in the age group of 4–7 years. The study demonstrates that playground equipment represents a major mechanism of injury of SCH in children. In particular trampoline related SCH and to a lesser degree monkey bar related SCH, represent an area in which primary preventative strategies should be targeted

Aim. To investigate the effectiveness of a decision-based protocol designed to minimise the use of medial incisions when performing crossed-wire fixation of supracondylar fractures of the distal humerus whilst minimising ulnar nerve injury. Method. We have employed a protocol for placing the medial wire during crossed k-wire fixation of supracondylar fractures dependent upon the medial epicondyle. When this is palpable, the wire is introduced percutaneously; when it is not, a mini-incision is made. All cases of closed reduction and crossed K-wiring of supracondylar fracture over a three year period (2008–2011) were identified from our department database. Cases with a neurological injury identified pre-operatively, and those in which the protocol had not been followed were excluded. Casenotes were reviewed to determine the incidence and outcomes of post-operative ulnar nerve deficit. Results. A total of 106 cases were identified, from which 36 cases were excluded, leaving 70 cases in the study. The mean age was 5 (range 1–11). 68 were extension-type injuries, of which 29 (41%) were type 2 and 39 (56%) type 3 according to the classification of Gartland. 2 were flexion-type. A mini-incision for placement of the medial K-wire was required in only 3 cases (4.3%), with percutaneous placement in all other cases. There was clinical evidence of partial ulnar nerve injury in 1 case (1.4%) which recovered spontaneously within 11 months. Conclusion. The results of this study demonstrate our protocol to be effective. Careful percutaneous placement of the medial wire can be performed in the majority of cases with little risk of significant or permanent injury to the ulnar nerve. Open placement of the medial wire is indicated in only a small proportion of cases. We suggest that the routine use of a medial mini-incision should be re-considered

Abstract. Background. Fractures Proximal humerus account for nearly 10 % of geriatric fractures. The treatment options varies. There is no consensus regarding the optimal treatment, with almost all modalities giving functionally poor outcomes. Hence literature recommends conservative management over surgical options. MULTILOC nail with its design seems to be a promising tool in treating these fractures. We hereby report our early experience in the treatment of 37 elderly patients. Objectives. To evaluate the radiological outcome with regards to union, collapse, screw back out/cut through, implant failures, Greater tuberosity migration. To evaluate the functional outcome at the end of 6 months using Constant score. Study Design & Methods. All patients aged >65 years who underwent surgery for 3,4-part fracture proximal humerus using the MULTILOC nail were included in the study after consent. Pre – existing rotator cuff disease were excluded. Within the time frame, a total of 39 patients underwent the said surgery. 2 patients were lost to follow up. All the measurements were taken at the end of 6 months and results tabulated and analysed. Results. Union was achieved in all the 37 patients. There were no varus collapse or screw backout/cut through seen in any of the patients. There was Greater tuberosity migration in 1 patient who underwent revision surgery at 6 weeks. All the patients got a minimum of 70 degrees of abduction and forward flexion. We had 29 excellent, 6 good, 2 fair and none poor results as per Constant scoring system. Study done in Tejasvini Hospital & SSIOT Mangaluru India

Trans-articular coronal shear fractures of the distal humerus pose a significant challenge to the surgeon in obtaining an anatomical reduction and rigid fixation and thereby return of good function. A variety of approaches have been described which include the extended lateral and anterolateral approaches and arthroscopically-assisted fixation for non-comminuted fractures. Fixation methods include open or percutaneous cannulated screws and headless compression screws directed either anterior to posterior or posterior to anterior. We describe an illustrated, novel approach to this fracture which is minimally invasive but enables an anatomical reduction to be achieved. A 15 year old male presented with a Bryan and Morrey type 4 fracture as described by McKee involving the left distal humerus. He was placed in a lateral position with the elbow over a support. A posterior longitudinal incision and a 6cm triceps split from the tip of the olecranon was made. The olecranon fossa was exposed and a fenestration made with a 2.5mm drill and nibblers as in the OK (Outerbridge-Kashiwagi) procedure. A bone lever was then passed though the fenestration and used to reduce the capitellar and trochlear fracture fragments into an anatomical position with use of an image intensifier to confirm reduction. The fracture was then fixed with two headless compression screws from posterior to anterior into the capitellar and trochlear fragments (see images). Early mobilisation and rehabilitation were commenced. Follow-up clinical examination and radiographs at six weeks revealed excellent range-of-motion and function with anatomical bony union. We believe that this novel approach to this fracture reduces the amount of soft tissue dissection associated with conventional approaches and their associated risks and also enables earlier return to function with restoration of anatomy

Purpose

Locking plates are widely used in clinical practice for the surgical treatment of complex proximal humerus fractures, especially in osteoporotic bone. The aim of this study is to assess the biomechanical influence of the infero-medial locking screws on maintaining reduction of the fragments in a proximal humerus fracture.

Abstract. Reverse shoulder arthroplasty (RSA) is being increasingly used for complex, displaced fractures of the proximal humerus. The main goal of the current study was to evaluate the functional and radiographic results after primary RSA of three or four-part fractures of the proximal humerus in elderly patients. Between 2012 and 2020, 70 consecutive patients with a recent three- or four-part fracture of the proximal humerus were treated with an RSA. There were 41 women and 29 men, with a mean age of 76 years. The dominant arm was involved in 42 patients (60%). All surgeries were carried out within 21 days. Displaced three-part fracture sustained in 16 patients, 24 had fracture dislocation and 30 sustained a four-part fracture of the proximal humerus. Patients were followed up for a mean of 26 months. The mean postoperative OSS at the end of the follow-up period was 32.4. The mean DASH score was 44.3. Tuberosity non-union occurred in 18 patients (12.6%), malunion in 7 patients (4.9%), heterotopic ossification in 4 patients (2.8%) and scapular notching in one patient. Anatomical reconstruction was achieved in 25 patients (17.5%), the influence of greater tuberosity healing on shoulder function could not be demonstrated. Heterotopic ossification seems to affect OSS and QDASH, we found statistically significant relation between HO and clinical outcomes. Patients with heterotopic ossification had significantly lower postoperative scores on DASH and OSS (P = .0527). Despite expecting good functional outcome with low complication rate after RSA, the functional outcome was irrespective of healing of the tuberosities

Titanium Elastic Nails have been around for the last 40 years, but it has never been introduced properly in the Pacific especially in Samoa in the management of femoral & in severely displaced forearm fractures in the paediatric age group & also Adult upper limb Trauma. This paper looks at the cases treated in TTM Hospital (Apia, Samoa) from June 2019- June 2023, looking at common injury patterns, indications for fixation and the cost benefit to the family and hospital, in terms of early rehabilitation and improving the length of stay in hospital pre-Tens nail era from 6–8 weeks to 1–2 weeks in hospital. 29 cases were treated with TENs concept during this period, 17 femoral fractures, 10 forearm fractures & 1 humerus fracture. Lastly this is very useful skill and tool to have in every hospital in the Pacific Islands, through proper training to prevent long term complications

Aim. A significant number of patients undergoing shoulder arthroplasty surgery have C acnes contamination at the end of the primary surgery. The objective of this study is to determine whether patients with C acnes contamination at the end of their primary shoulder surgery have a worse prognosis than those who end up without C. acnes contamination. Method. Prospective study including all patients who underwent a reverse shoulder prosthesis from January 2015 to December 2018. In all of them, 5 to 12 cultures were performed during primary surgery. The patients underwent surgery for shoulder arthritis secondary to rotator cuff tears, acute fracture of the proximal humerus, and sequelae of fracture of the proximal humerus. Exclusion criteria included the existence of previous surgeries on the affected shoulder, the presence of signs of infection, having received infiltrations and / or complementary invasive examinations (Arthro-MRI and Arthro-CT). Follow-up from 2 to 5 years. Functional assessment according to the Constant Functional Scale. All complications were also recorded. Results. 162 patients were included. Of these, 25 had positive cultures for C. acnes at the end of primary shoulder surgery. Average age of 74.8 years. 136 women and 26 men. 75.9% Shoulder arthritis secondary to rotator cuff tears, 13.6% acute fractures and 10.5% sequelae of fractures. There were no differences between patients with C. acnes and those without C. acnes regarding age and indication for surgery. Predominance of men in the group with positive C. acnes (p <0.001). No differences at 2 and 5 years in the Constant functional scale between the two groups (2 years, 59.6 vs 59.2 p 0.870) (5 years, 62.4 vs 59.5 p 0.360). Significant differences regarding the number of complications (p 0.001). Patients without C. acnes had 1 aseptic loosening of the metaglene and patients with C. acnes had 2 infections, 1 dislocation, and 1 revision surgery. Patients with contamination by C. acnes had more comorbidities (p 0.035) than patients without contamination. Conclusions. Patients with C acnes contamination at the end of primary surgery do not have functional differences when compared with patients without contamination at 2 and 5 years, but they have a higher number of complications in the medium term

Supracondylar fractures of the humerus (SCH) are the most common fractures sustained following a fall on an outstretched hand in healthy children, and one of the leading causes of hospital admission and surgical intervention. With increasing severity of injury, treatment options become more invasive and the potential for long lasting complications increases. The aim of this study is to examine the causes and circumstances surrounding SCH in public play spaces particularly to determine whether or not the playground equipment implicated in injurious falls is compliant with Canadian Standards Association (CSA) standards. Children aged 6–12 years who sustained SCH while playing at a public play space between 2017 and 2019 were recruited from the paediatric orthopaedic clinic. Public playgrounds within a 50 km radius of the clinic were visited by research assistants. Using GPS coordinates from photographs taken by the children at the site of injury or play structures identified by the children using Google Maps, play structure type, dimensions, height of fall, and the type and depth of the surface material were collected from each site and compared to the relevant CSA standard. Of the 89 SCH injuries reported during the recruitment period, 49 (55%) occurred on public play structures. Thirty-nine injury sites, representing 42 SCH cases, were accessible to conduct site visits and were included in the analysis. Thirteen children (31%) sustained Type One, 19 (45%) were Type Two, and 10 (24%) were Type Three SCHs. The mean child age at injury was 7.13 years. Of the 42 SCH cases, 37 sites had woodchips surfacing (88%); three had rubber (7%), one had cement (2%), and one had sand (2%). Of the 36 sites where woodchip depth measurements could be obtained, only seven (19%) met the minimum CSA depth. Out of the 42 SCH cases, 29 injuries (69%) involved upper body equipment (i.e. monkey bars or similar) and track rides. Fourteen of these 29 injuries (48%) occurred on structures that did not meet CSA standards for fall height. All rotating play structures had less than half of the required clearance between the components. Eighty-six percent of SCH cases occurred in playgrounds where at least one of the required CSA standards was not met. Woodchip surfacing was of particular concern because 81% of woodchip surface depths failed to meet CSA standards. Of the 14 injuries where fall height did not meet CSA standards, 11 (79%) also did not meet minimum CSA surface depth. Field investigation into the characteristics of playgrounds in which children sustain SCH can guide preventative policy and practice measures. Municipalities and school boards should be alerted to the need for regular maintenance of woodchip playground surfacing, in order to remain compliant with the minimum surface depth and prevent serious injuries. Additionally, compliance with minimum surface depths can also decrease fall heights to meet CSA standards. By minimizing the prevalence of SCH injuries occurring on play structures and the need for emergency department visits, the burden to healthcare systems and families of injured children can potentially be reduced

Supracondylar fractures of the humerus (SCH) are the most common fractures sustained following a fall among children. The majority of these fractures are mild, but the most severe injury types can result in a disruption to the nerves and blood supply resulting in limb threatening injuries and potential life-long disability. Better understanding of mechanisms of injury and child-related factors that influence injury, especially for severe cases, is crucial to identifying best practices and informing policy. We aim to stratify fractures and examine the associated mechanisms and circumstances of injury to identify best practices and inform supportive policy. In doing so, we plan to investigate why some children sustain more severe fractures than others by exploring mechanisms and locations of injury, and risk-taking behaviours. A prospective, mixed-methods pilot study employing a child-led research design. Our approach links narratives from qualitative photo elicitation interviews (PEI) to mapped images of the locations of injury using geotagged photographs children have taken themselves, complications and injury outcomes, and an assessment of overall risk-taking tendencies. Participants aged six-12, with the help of their photographs, were able to lay out the events leading up to, including, and following their injury. Much of this information was either not included in their medical charts or was markedly different. Themes included not being able to prevent the injury and being adventurous, as well as becoming more cautious afterwards. These can have applications to the necessity of exploration as well as possibilities to prevent injury or not. Thus, the in-depth, first-person retelling of injury mechanism illustrated the need for mechanistic data and statistics beyond injury location alone. Risk-taking behaviours, as scored by the Sensation Seeking Scale for Children, correlated to injury severity, which is known to be associated with poorer outcomes and long-lasting complications. PEI of children sustaining SCH fractures in Vancouver reveals mechanisms of injury beyond those previously reported in literature and suggest the feasibility of a large-scale study. PEI in this age group allows for clarifications and a clearer picture of injury mechanism as well as context of injury. These aspects significantly affect our ability to determine the relationship between injury mechanism and injury severity. Mixed-methods analysis of child-directed data as well as quantitative injury demographics reveals unique translational knowledge which can be shared with clinicians, patients/care-givers, community-based health teams, and local policy makers to make timely and impactful improvements in injury prevention, clinical practice, and play structure safety

Fractures through the physis account for 18–30% of all paediatric fractures, leading to growth arrest in 5.5% of cases. We have limited knowledge to predict which physeal fractures result in growth arrest and subsequent deformity or limb length discrepancy. The purpose of this study is to identify factors associated with physeal growth arrest to improve patient outcomes. This prospective cohort study was designed to develop a clinical prediction model for growth arrest after physeal injury. Patients < 1 8 years old presenting within four weeks of injury were enrolled if they had open physes and sustained a physeal fracture of the humerus, radius, ulna, femur, tibia or fibula. Patients with prior history of same-site fracture or a condition known to alter bone growth or healing were excluded. Demographic data, potential prognostic indicators and radiographic data were collected at baseline, one and two years post-injury. A total of 167 patients had at least one year of follow-up. Average age at injury was 10.4 years, 95% CI [9.8,10.94]. Reduction was required in 51% of cases. Right-sided (52.5%) and distal (90.1%) fractures were most common. After initial reduction 52.5% of fractures had some form of residual angulation and/or displacement (38.5% had both). At one year follow-up, 34 patients (21.1%) had evidence of a bony bridge on plain radiograph, 10 (6.2%) had residual angulation (average 12.6°) and three had residual displacement. Initial angulation (average 22.4°) and displacement (average 5.8mm) were seen in 16/34 patients with bony bridge (48.5%), with 10 (30.3%) both angulated and displaced. Salter-Harris type II fractures were most common across all patients (70.4%) and in those with bony bridges (57.6%). At one year, 44 (27.3%) patients had evidence of closing/closed physes. At one year follow-up, there was evidence of a bony bridge across the physis in 21.1% of patients on plain film, and residual angulation and/or displacement in 8.1%. Initial angulation and/or displacement was present in 64.7% of patients showing possible evidence of growth arrest. The incidence of growth arrest in this patient population appears higher than past literature reports. However, plain film is an unreliable modality for assessing physeal bars and the true incidence may be lower. A number of patients were approaching skeletal maturity at time of injury and any growth arrest is likely to have less clinical significance in these cases. Further prospective long-term follow-up is required to determine the true incidence and impact of growth arrest

Aim. Treatment for distal third shaft fractures of humerus is very challenging especially if its comminuted and bone is osteopenic. They are commonly treated with plating. Plating has complications of iatrogenic radial nerve palsy. We report our case series of distal third fractures of humerus treated with retrograde Halder Humeral Nail. Materials and methods. Since 1994 to 2010 we have 576 fractures of humerus treated with retrograde Halder Humeral nail. Of these 45 were distal third extra articular fractures of humerus. Average age of patients at the time of surgery was 30.4 years (Range 15–82 years, Median 33 years). Of 45 patients 26 were females and 19 males.3 out of 45 had non union at the time of presentation. The nail was locked distally with one or two screws and proximally with a screw and tripwire. The entry point of the nail was roof of olecranon fossa (contrary to standard retrograde nails where it is an inch above olecranon fossa) This design of nail allows it be used for even very distal fractures. All patients were followed till clinical and radiological signs of union. 1 patient was lost to follow up. Results. Average time to fracture healing was 13.9 weeks (Range 9–36 weeks). There were 2 cases of non union, one healed at 9 months with 2. nd. surgery. The other non union was asymptomatic and did not agree for further surgery. There was one reported case of infection.7 patients had nail removal electively on request. All the patients achieved full range of elbow and shoulder movement. No reported cases of iatrogenic radial nerve palsy. Conclusion. Our results of distal third fractures of humerus treated with retrograde Halder Humeral Nail are excellent. It avoids big exposure as needed in plating and complication of iatrogenic radial nerve palsy

Introduction. Treatment for distal third shaft fractures of humerus is very challenging. They are commonly treated with plating. Plating has complications of iatrogenic radial nerve palsy. We report our case series of distal third fractures of humerus treated with retrograde Halder Humeral Nail. Materials/Methods. Since 1994 to 2010 we have 576 fractures of humerus treated with retrograde Halder Humeral nail. Of these 45 fractures were distal third of humerus. Average age of patients at the time of surgery was 30.4 years (Range 15–82 years, Median 33 years). Of 45 patients 26 were females and 19 males. Three out of 45 had non union at the time of presentation. All patients were followed until clinical and radiological signs of union. One patient was lost to follow-up. Results. Average time to fracture healing was 13.9 weeks (Range 9–36 weeks). There were two cases of non union, one healed at 9 months with 2. nd. surgery. There was one reported case of infection. Seven patients had nail removal electively. All the patients achieved full range of elbow and shoulder movement. No reported cases of iatrogenic radial nerve palsy. Conclusion. Our results of distal third fractures of humerus treated with retrograde Halder Humeral Nail are excellent. It avoids big exposure as needed in plating and complication of iatrogenic radial nerve palsy

Aim. The aim of this study was to compare the results of humerus intramedullary nail (IMN) and dynamic compression plate (DCP) for the management of diaphyseal fractures of humerus. Material & methods. 47 patients with diaphyseal fracture of shaft humerus were randomised prospectively and treated by open reduction and internal fixation with IMN or DCP. The criteria for inclusion were Grade 1.2a compound fractures; Polytrauma; Early failure of conservative treatment; Unstable fracture. Patients with pathological fracture, Grade 3 open fracture, refracture or old neglected fracture of humerus were excluded from the study. 23 patients underwent internal fixation by IMN and 24 by DCP. Reamed antegrade nailing was done in all cases. DCP was done through an anterolateral or posterior approach. Results. The outcome was assessed in terms of union time, union rate, functional outcome and incidence of complications. Functional outcome was assessed using the American Shoulder and Elbow Surgeons Score (ASES). On comparing the results by independent samples t test, there was no significant difference in ASES score between the two groups. The average union time was found to be significantly lower for IMN compared to DCP(P<.05). The union rate was found to be similar in both the groups. Complications like infection were found to be higher with DCP compared to IMN, while shortening of the arm (1.5-4cm) and restriction of shoulder movements due to impingement of the nail were found to be higher with DCP compared with IMN. However, this improved in all patients following removal of the nail once the fracture healed. Conclusion. This study proves that IMN can be considerd as a better surgical option for these fractures as it offers shorter union time and less incidence of serious complications like infection. However, there appears to be no difference between two groups in union rate and functional outcome

All skeletally immature patients who presented with a supracondylar fracture between 01/09/2013 and 24/11/2015 (n = 50) were used to compare the current management of supra-condylar fractures of the humerus in children to the standards set by the BOAST 11 guidelines. 8.1% did not have full documentation of their neurovascular assessment. 93.9% underwent surgery within 24 hours of presentation. Average time to theatre for neurovascularly compromised patients was 4 hours 46 minutes. 81.8% were managed with 2 K-wires as recommended. Only 39.4% of the patients had their wires removed within 3 – 4 weeks. Only 6.1% had the recommended 2 mm wires. AO recommends the use of 2mm wires if 2 lateral wires are used whereas the BOAST 11 guideline recommends 2mm wires where possible. The results clearly demonstrate a need for further education and awareness of the BOAST 11 guidelines. Of particular interest is the documentation of patients' neurovascular status for appropriate management and for medico-legal purposes. Long term outcome comparison of surgical fixation with 2mm and 1.6mm wires would be useful to support the use of 2mm wires as recommended by the professional consensus in the BOAST 11 guidelines

Background. The procedures of total elbow and shoulder replacements increased 6% to 13% annually from 1993 to 2007 with revision-related burden increasing from 4.5% to 7%. The revisions of the shoulder and elbow prostheses due to aseptic loosening, periprosthetic fractures, infections have led to the use of standard or custom-made implants due to significant bone loss. This study reports our experience in the management of complicated primary and revisions of total shoulder and elbow replacements with significant humeral bone loss and in metabolic diseases of the elbow and shoulder treated with bone resection using The Mosaic Humeral Replacement System. Patients and Materials. A total of 20 patients underwent total elbow or shoulder arthroplasty using the Mosaic Humeral Replacement System (Biomet, UK). The Mosaic system was used in 8 shoulder arthroplasties (Group A) and in 12 elbow arthroplasties (Group B). The underlying pathologis in Group A included 2 malunited proximal humerus fracture, 1 humeral osteomyelitis, 1 shoulder chondrosarcoma, 1 aggressive Gigantic Cell Tumor with prosthetic fracture, 2 metastatic lytic lesion, and 1 failed fixation of non-union proximal humerus. Figure 1 shows Mosaic implant after complex fracture of proximal humerus. Reasons for Mosaic arthroplasty in Group B included 3 humeral component revisions due to periprosthetic fracture, 1 prosthesis breaking-up with fractures, 1 revision of loose Souter Strathclyde prosthesis, 1 loose prosthesis due to infection, 1 highly comminuted elbow fracture, 1 aseptic loosening of humeral component of total elbow replacement, 3 revision of total elbow replacement due loosening and 1 pathological distal humerus fracture due to metastasis. Figure 2&3 shows pre- and post-operative Mosaic implant following complex periprosthetic fracture of distal humerus. Clinical Observation/Discussion. The Mosaic Humeral Replacement System is a complete system for complex revision, salvage/oncology, and complex humeral fractures. It is a completely modular system which can be adapted to different patient anatomies and indications. It has been designed to face several surgical challenges, including reattaching soft tissues, properly tensioning the glenohumeral joint and restoring joint function. It is a cost-effective procedure with the benefits of a custom made humeral component in a standard tray. Our study shows that good results can be achieved with this form of treatment. Radiological assessment of all patients showed a satisfactory position of the implant with appropriate margin of bony resection. One patient with proximal and another one with distal humeral Mosaic replacement had late infection. One patient had aseptic loosening 3 years after distal humeral replacement. Most of the patients had satisfactory improvement in range of movement and chronic pain. While primary clinical observations and imaging results indicate acceptable results with Mosaic arthroplasty; a realistic assessment can only be achieved in long-term using the appropriate outcome measures. At the present we continue to regularly assess the patients clinically and radiologically and by means of Liverpool elbow score for distal and Quick- DASH for proximal Mosaic Humeral Replacement System and plan to report the long-term results in due time

Surgeries for reverse total shoulder arthroplasty (RTSA) significantly increased in the last ten years. Initially developed to treat patients with cuff tear arthropathy (CTA) and pseudoparalysis, wider indications for RTSA were described, especially complex proximal humerus fractures. We previously demonstrated in patients with CTA a different sequence of muscular activation than in normal shoulder, with a decrease in deltoid activation, a significant increase of upper trapezius activation and slight utility of the latissimus dorsi. There is no biomechanical study describing the muscular activity in patients with RTSA for fractures. The aim of this work is to describe the in vivo action of RTSA in patients with complex fractures of the proximal humerus. We conducted an observational prospective cohort study comparing 9 patients with RTSA for complex humerus fracture (surgery more than 6 months, healed tuberosities and rehabilitation process achieved) and 10 controls with normal shoulder function. Assessment consisted in a synchronized analysis of range of motion (ROM) and muscular activity on electromyography (EMG) with the use of 7 bipolar cutaneous electrodes, 38 reflective markers and 8 motion-recording cameras. Electromyographic results were standardized and presented in muscular activity (RMS) adjusted with maximal isometric contractions according to the direction tested. Five basic movements were evaluated (flexion, abduction, neutral external rotation, external rotation in 90° of abduction and internal rotation in 90° of abduction). Student t-test were used for comparative descriptive analysis (p < 0,05). The overall range of motion with RTSA is very good, but lower than the control group: flexion 155.6 ± 10 vs 172.2 ± 13.9, p<0.05, external rotation at 90° 55.6 ± 25 vs 85.6 ± 8.8, p<0,05, internal rotation at 90° 37.8 ± 15.6 vs 52.2 ± 12, p<0,05. The three heads of the deltoid are more stressed during flexion and abduction in the RTSA group (p. The increased use of the 3 deltoid chiefs does not support the hypothesis proposed by Grammont when the RTSA is performed for a complex proximal humerus fracture. This can be explained by the reduced dispalcement of the rotation center of the shoulder in these patients compared to those with CTA. These patients also didn't present shoulder stiffness before the fracture. The maximal muscle activity of the trapezius in flexion and of the latissimus dorsi in flexion and abduction had not been described to date. These new findings will help develop better targeted rehabilitation programs. In addition, the significant role of the latissimus dorsi must question the risks of its transfer (L'Episcopo procedure) to compensate for external rotation deficits

Purpose. To evaluate the results of reverse total shoulder arthroplasty for complicated proximal humerus fractures in old ages. Materials and Methods. We retrospectively evaluated 13 cases who underwent reverse total shoulder arthroplasty for proximal humerus fracture, fracture-dislocation and nonunions of the fractures. Mean age was 77(68–87)years old and mean follow-up period was 15.2(12–26)months. four part fractures of proximal humerus in 7 cases, fracture-dislocation in 3 cases, locked dislocation with greater tuberosity in 2 cases, nonunion with defiency of rotator cuff in 1 case were included. We evaluated mean ASES, mean UCLA, mean KSS, mean SST and mean range of motion(ROM). Results. Postoperative mean ASES was 59(13–98.5), mean UCLA was 21(12–34), mean KSS was 62(21–94), mean SST was 5(1–11). Postoperative mean ROM was 103°(30°–135°) in forward flexion, 93°(30°–135°) in abduction, 21°(0°–45°) in external rotation and L4 level in internal rotation. The complications were not shown in any cases except for resolved heterotropic ossification. 4 cases demonstrated bony unions on greater tuberosity and 4 cases showed scapular notching on last follow-up. Conclusions. Reverse total shoulder arthroplasty for complicated proximal humerus fracture, nonunion of the fracture, or chronic locked dislocation seems to be a good treatment options. Regardless of bony union of the greater tuberosity, reverse total shoulder arthroplasty for the complicated proximal humerus fractures had a satisfied results

Intraarticular fractures of the distal humerus comprise 1% of all fractures in adults. Triceps reflecting and olecranon osteotomy approach provide adequate exposure in intraarticular fracture with its own advantage and disadvantages. Forty consecutive patients with fractures of the distal humerus were treated over a 36-month period. The patients were randomly allotted into two groups; group A consists of twenty patients with olecranon osteotomy and group B consists of twenty patients with triceps reflecting approach. In both the groups fracture was fixed using orthogonal or parallel plating techniques. Clinical outcome was assessed using the DASH SCORE, radiological union and complications was noted in both the group and compared. In group A the mean DASH score was 15.9 points. Three patients underwent a second procedure for hardware removal, 2 patients had non-union at osteotomy site, one patient had transient ulna nerve neuropraxia and one patient had superficial infection. In group B the mean DASH score was 14 points. There was no statistical significance between both groups regarding final outcome except complications were more in osteotomy approach. We conclude both approach is an effective procedure with an excellent or good functional outcome but osteotomy approach has more complications