Simultaneous Double Injury of the Interphalangeal Dislocation and Bony Skier's Thumb: A Case Report

ABSTRACT

Simultaneous double injury of the thumb at the interphalangeal joint and metacarpophalangeal joint occurring at the same time are seldom seen in medical practice. 72 year old male had posterior discation of interphalangeal joint and ulnar collateral ligament injury of metacarpophalangeal joint, as known as skier's thumb after he fell down from the bike. Open posterior dislocation of interphalangeal joint was stabilized by reduction and then skin suture was done. Metacarpophalangeal joint had totally ruptured ulnar collateral ligament with Stener lesion and bony fragment of base of proximal phalanx. The joint was subluxated and was not reduced due to jammed bony fragment. Displaced avulsion fracture of volar plate with ulnar collateral ligament injury was not reported by author's research. The author reduced bony fragment in joint and repaired ulnar lateral ligament. It has been 6 month after the operation and the patient is followed up. The patient has normal range of motion without instability of metacarpophalangeal and interphalangeal joint. We report our experience about simultaneous double injury of thumb and bony skier's thumb.