Journal of Bone and Joint Surgery, 1973;55:1480-1486.
© 1973 by The Journal of Bone and Joint Surgery, Inc
Complex Dislocation of the Metacarpophalangeal Joint
CORRELATIVE PATHOLOGICAL ANATOMY
DAVID P. GREEN M.D.1 and
GLENN C. TERRY M.D.1
1 From the Hand Surgery Service, Division of Orthopaedics, University of Texas Medical School at San Antonio
The operative findings and pathological anatomy in nine patients with complex metacarpophalangeal dislocations correlated well with dissections in fresh cadaver hands. The single most important element preventing reduction is interposition of the volar plate between the base of the proximal phalanx and the head of the metacarpal. Of importance is an understanding of the three sets of transverse ligaments and their relationship to the volar plate: (1) the natatory ligament, (2) the superficial transverse metacarpal ligament, and (3) the deep transverse metacarpal ligament. Early active motion was encouraged, commencing immediately following open reduction, and resulted in a full range. In one patient, ten days of immobilization caused residual restriction of motion.