Complex metacarpophalangeal dislocation
© Springer-Verlag London Ltd 2008
Received: 10 June 2008
Accepted: 30 July 2008
Published: 20 September 2008
Complex dislocations occur when the volar plate is ruptured and the plate becomes lodged between the base of the proximal phalanx and the metacarpal head. Historically, this type of injury has been thought to be inherently irreducible by closed technique, and expeditious surgical management is advocated [1, 2]. Some recommend a gentle attempt at closed reduction be performed by an experienced surgeon prior to operative management .
The position of the proximal phalanx parallel to the metacarpal is commonly seen on radiography. The radiographic finding of entrapment of one or both sesamoids within the joint space is rare, but classic for a complex MCP dislocation and seen in this case . In addition, the dimpling noted over the palmar aspect of the hand is pathognomonic and was first reported by Kaplan [5, 6].
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