Dorsal dislocation of the trapezoid with carpo-metacarpal dislocations: a case report and a description of the "missing carpal sign" on radiographs.

Background: A case report of dorsal trapezoid dislocation with index and middle carpometacarpal dislocation is described.

Objectives: On review of the literature, this rare injury is often misdiagnosed on presentation, with difficulty in reviewing initial radiographs being a key factor.

Case Report: We present our case report of trapezoid dislocation and describe the "missing carpal sign" on radiographs as an aid to suspicion of diagnosis.

Whiplash injury of the shoulder: is it a distinct clinical entity?

The pathophysiology of shoulder pain after whiplash injury remains uncertain. Patients with shoulder pain after a whiplash injury were recruited from the accident and emergency department in a prospective study to determine the nature of indirect shoulder trauma after a whiplash injury. Twenty patients fulfilled the inclusion criteria.