Volar open reduction of complex metacarpophalangeal dislocation of the index finger: a pictorial essay.

Dislocations of the metacarpophalangeal joint are uncommon and usually caused by significant trauma. The distinction between subluxations and dislocations is critical. Complex dislocations require surgical reduction. The need for surgical reduction is primarily due to the anatomy of this region, which contributes to the complexity of this injury and to the degree of difficulty in its reduction. This pictorial essay aims to highlight the clinical, radiographic, and surgical features of this uncommon yet complex injury.