Simultaneous Double Dislocation of the Interphalangeal Joints in One Finger: A Case Report and Literature Review.

The simultaneous double dislocation of the distal interphalangeal joint (DIPJ) and proximal interphalangeal joint (PIPJ) in one finger is a rare injury. We present the case of a right-hand dominant male in his late teens who sustained a hyperextension injury to the tip of his left ring finger while playing football. A physical examination followed by anteroposterior and lateral radiographs confirmed dorsal dislocations at both the PIPJ and DIPJ in a "stepladder" deformity. His finger was subsequently splinted for 1 week after which hand physiotherapy was initiated. At 6 weeks follow-up, the patient demonstrated full functional recovery with a full range of motion in both DIPJ and PIPJ with no pain or stiffness. We also provide an up-to-date review of PubMed-indexed case reports regarding simultaneous double dislocations of the DIPJ and PIPJ.