Simultaneous double dislocation of the interphalangeal joint of the same finger: a report of two cases

摘要

Simultaneous dislocation of both the proximal and distal interphalangeal (PIP and DIP) joints in a finger is uncommon. Two patients were treated conservatively. Both two patients fell from a step-ladder and X-rays revealed dorsal dislocations of both PIP and DIP joints of their right little fingers. Manual reduction was easily achieved with gentle longitudinal traction. The mechanism of the injury is believed to be hyperextension of both the DIP and PIP joints. Closed reduction is the treatment of choice and early active range of motion to prevent joint contracture should be recommended.