Sternoclavicular joint dislocation

Sternoclavicular (SC) joint dislocation is an uncommon injury. It may be due to due to indirect trauma or direct trauma.

SC dislocations may be presternal (caused by indirect injury) or retrosternal (caused by direct injury). Retrosternal dislocation may cause injury of mediastinal structures (vessels, nerves, and oesophagus).

Clinical features

SC dislocation presents with a deformity and a palpable bump on the clavicle.

Diagnosis and evaluation

CT may be required to rule out mediastinal injury in SC dislocation.

Treatment

SC dislocation is relatively easy to reduce but retaining this reduction may be difficult. Conservative therapy involves immobilisation. Operative therapy involves K-wire with resection of the proximal end of the clavicle.