Ishizuki M, Nakagawa T, Ito S
Department of Orthopaedic Surgery, Tsuchiura Kyodo Hospital, Ibaraki, Japan.
J Hand Surg Br. 1994 Jun;19(3):361-7. doi: 10.1016/0266-7681(94)90090-6.
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.