Anteroposterior view of shoulder revealing posterior dislocation

Posterior dislocation is rarer as compared to anterior dislocation. When it occurs damage to the structures is much more owing to the force required for disruption of the joint.

These patients present with pain and deformity. The patients have much more pain than those with acute traumatic anterior dislocations.

After the clinical examination and xrays the diagnosis can be reached at with certainty. A greater damage to the glenoid and humeral head may be evident on xrays.

Careful note is made of associated fractures, including the extent of the impression fracture of the anteromedial humeral head.

Closed reduction should be caried out as soon as possible.

Because of associated muscle spasms, the reduction may not be achievable with sedation and muscle relaxants. [Read more...]