Traumatic injuries to the shoulder (fractures and dislocations) have a very low incidence ... during maximal external rotation results in contact between the supraspinatus and the posterosuperior ...

but post-operative problems can arise from failure of the glenoid component The prevalence of shoulder complaints in the UK is estimated to be 14%, with 1–2% of adults consulting their general ...

Occasionally, the humeral head comes out of or separates from the glenoid socket ... the joint Boney injury or fracture Inadequate strength in the rotator cuff and shoulder blade muscles When ...

Background In the throwing shoulder, repetitive motion increases proximal humerus and glenoid retroversion. However, clinical factors that affect this adaptation are poorly understood. Objective ...