Inoue G, Miura T
Department of Orthopaedic Surgery, Nagoya University School of Medicine, Japan.
J Hand Surg Br. 1988 Nov;13(4):469-73. doi: 10.1016/0266-7681_88_90183-0.
16 patients developed locking of the M.P. joint of the thumb as the result of a hyperextension injury. Four were successfully treated by manipulation under an intra-articular injection of a local anaesthetic, while the remaining twelve required open reduction. All were examined 4 to 48 months after treatment (average 12 months). The torn palmar plate and the accessory collateral ligament, which acted as a constrictive band, were trapped on the prominence of the radial condyle of the metacarpal. Four of the twelve surgically-treated patients had a deformity which we believe was congential: a transverse groove over the radial condyle of the metacarpal. No patients had a recurrence of the locked joint.
16例患者因拇指掌指关节过伸损伤而出现关节交锁。4例通过关节内注射局部麻醉剂后手法复位成功治疗，其余12例则需要切开复位。所有患者在治疗后4至48个月（平均12个月）接受检查。撕裂的掌板和副侧副韧带形成一个狭窄带，被困在掌骨桡侧髁的突出处。12例手术治疗的患者中有4例存在我们认为是先天性的畸形：掌骨桡侧髁上有一条横向沟。所有患者均未出现关节交锁复发。
