Morizaki Yutaka, Miura Toshiki
Department of Orthopaedic Surgery, Faculty of Medicine, The University of Tokyo, Tokyo 113-8655, Japan.
Hand Surg. 2009;14(2-3):149-52. doi: 10.1142/S0218810409004414.
Dislocation of the trapeziometacarpal joint is a rare injury. We report an unusual pattern of dorsal dislocation of the trapeziometacarpal joint with an avulsion fracture of the dorsoradial tubercle of the trapezium. Simultaneous ligament rupture with an avulsion fracture of the thumb metacarpophalangeal joint was associated. The trapeziometacarpal joint was reduced and disrupted ligaments with avulsed fragments of both joints were surgically repaired.
大多角骨与第一掌骨间关节脱位是一种罕见的损伤。我们报告了一种不寻常的大多角骨与第一掌骨间关节背侧脱位模式，伴有大多角骨背桡侧结节撕脱骨折。同时伴有拇指掌指关节韧带断裂及撕脱骨折。对大多角骨与第一掌骨间关节进行了复位，并对两个关节的韧带断裂及撕脱碎片进行了手术修复。
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