Ostrowski D M
AMI, Brookwood Medical Center, Birmingham, Ala. 35209.
J Hand Surg Am. 1991 Jan;16(1):121-4. doi: 10.1016/s0363-5023(10)80025-5.
A case of irreducible complete dorsoulnar dislocation of the proximal phalanx of the thumb is presented. The pathologic anatomy included intersubstance tears of the ulnar collateral ligament and dorsal capsule and avulsions of the palmar plate and radial collateral ligament from their metacarpal attachments. The palmar plate blocked reduction, as did the radial collateral ligament that was caught on the margin of a tear in the adductor aponeurosis and on the tendon of the extensor pollicis longus. A review of the English-language literature indicates that this pathologic anatomy has not been described.
本文报告一例拇指近节指骨不可复位的完全背尺侧脱位病例。病理解剖包括尺侧副韧带和背侧关节囊的实质内撕裂，以及掌板和桡侧副韧带从掌骨附着处的撕脱。掌板阻碍了复位，同样阻碍复位的还有桡侧副韧带，它卡在了内收肌腱膜撕裂边缘以及拇长伸肌腱上。对英文文献的回顾表明，这种病理解剖尚未有过描述。
