Shoulder Dislocation

Introduction

The shoulder is the most mobile joint in the body. Due to this mobility and the fact that the socket is very shallow, it is vulnerable to dislocation. The shoulder can suffer from partial dislocation (subluxation) or complete dislocation. Partial dislocation occurs when the head of the humerus (the upper arm bone) is partially out of the socket. With complete dislocation, the humeral head moves completely out of the socket.

Dislocation of the shoulder can happen in all directions, and results in tearing of the capsule surrounding the shoulder joint. The capsule or ligaments serve to hold the joint together and if they are damaged, the joint is susceptible to repeat dislocation or subluxation in the future.

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