Although reverse shoulder arthroplasty provides excellent clinical results in appropriately selected patients, loss of external and internal rotation may occur. Component selection, design, and placement affect postoperative results. Recent studies considered the effect of humeral component version on functional results. The current study investigated whether humeral stem retroversion affects t...

INTRODUCTION Reverse shoulder arthroplasty (RSA) holds increasing attraction as a means to reliably restore pain-free function to patients with glenohumeral arthritis who are rotator cuff-deficient [1]. RSA utilizes a reverse ball-in-socket design, with the humeral component as the socket and the glenoid component the ball (glenosphere), to medialize and distalize the humeral center of rotation...

Osteochondritis dissecans (OCD) is a common condition in the knee, the elbow and the talus. It is rarely diagnosed in the humeral head. We report the case of a young male patient with OCD of the right humeral head and discuss the clinical and radiographic findings.

The treatment of humeral shaft fractures ranges from conservative modalities to operative fixation, including plate osteosynthesis and intramedullary fixation. Nonunion is a complication of conservative and operative interventions but is more often associated with elastic nailing. This article discusses elucidates the successful outcomes achieved with flexible nailing of humeral shaft fractures.

Distal humeral epiphyseal separations are rare and treatment strategies are not well defined. The case of a full-term male newborn with a distal humeral epiphyseal separation as the result of a birth trauma was reviewed. A literature review of this topic was undertaken to better understand its occurrence, diagnosis, and treatment options. The patient sustained a distal humeral epiphyseal separa...

BACKGROUND Reported outcomes of shoulder hemiarthroplasty for proximal humeral fractures have been poor due to tuberosity non-union or rotator cuff disruption. Newer designs provide features to allow secure tuberosity apposition and stabilisation. To evaluate the outcomes of a shoulder hemiarthroplasty system with "tuberosity friendly" features in the treatment of multi-fragmentary proximal hum...

Posterior glenohumeral joint dislocation is an uncommon injury and is associated with bony and ligamentous disruption. It requires prompt diagnosis and early treatment to prevent acute or recurrent instability and subsequent dysfunction. Reverse Hill-Sachs lesions associated with this injury are challenging to treat, and optimal treatment is controversial. Treatment methods can be divided into ...

PURPOSE To evaluate the outcome of open reduction and internal fixation using locking compression plates for proximal humeral fractures. METHODS 54 men and 16 women aged 28 to 79 (mean, 54) years underwent open reduction and internal fixation using a locking compression plate for closed 2-part (n=22), 3-part (n=38), and 4-part (n=10) proximal humeral fractures. 10 of the patients also had dis...

Fresh-frozen shoulder specimens were used to evaluate restraining forces provided by capsuloligaments and muscles crossing the glenohumeral (GH) joint to better understand various factors contributing to GH stability. The humeral head was translated in the posterior-anterior (PostAnt), inferior-superior (Inf-Sup), and medial-lateral (MedLat) directions, and rotated about the humeral long axis r...

BACKGROUND Disability of the shoulder joint is often caused by a tear in the rotator cuff (RC) muscles. Four RC muscles coordinate shoulder movement and stability, among them the supraspinatus and infraspinatus muscle which are predominantly torn. The contribution of each RC muscle to tear pathology is not fully understood. We hypothesized that muscle atrophy and fatty infiltration, features of...