The shoulder is one of the most mobile, but also one of the most dislocated joints in the body.
The most common direction that the glenohumeral joint will dislocate is anteriorly or ‘out the front’. Anterior instability (rather than posterior or superior) accounts for more than 95% of instability episodes. When the shoulder dislocates, the axillary nerve can be injured and result in deltoid muscle weakness or skin numbness on the lateral side of the upper arm.
Acute injuries are usually traumatic in origin. Chronic injuries occur with