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Hyperextension injuries of the MP joint of the thumb
M Ishizuki1, T Nakagawa, S Ito
1Department of Orthopaedic Surgery, Tsuchiura Kyodo Hospital, Ibaraki, Japan.
Journal of Hand Surgery (Edinburgh, Scotland)
|June 1, 1994
Abstract:
We report 26 cases of hyperextension injury of the MP joint of the thumb. These were classified into the following three categories; dorsal dislocation of the MP joint or volar plate avulsion; locking of the MP joint and fracture of the sesamoid bone. We report the pathomechanics and clinical features of these injuries.