Hyperextension injuries of the MP joint of the thumb.
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.
Ishizuki
M
M
Department of Orthopaedic Surgery, Tsuchiura Kyodo Hospital, Ibaraki, Japan.
Nakagawa
T
T
Ito
S
S
D000293:Adolescent; D000328:Adult; D017885:Collateral Ligaments / Q000293:injuries / Q000473:pathology; D005260:Female; D005500:Follow-Up Studies; D050723:Fractures, Bone / Q000209:etiology; D006801:Humans; D004204:Joint Dislocations / Q000145:classification / Q000209:etiology* / Q000473:pathology; D008297:Male; D008662:Metacarpophalangeal Joint / Q000293:injuries* / Q000473:pathology; D016059:Range of Motion, Articular; D012716:Sesamoid Bones / Q000293:injuries; D013933:Thumb / Q000293:injuries* / Q000473:pathology