Moriya Koji, Saito Hidehiko, Takahashi Yuji, Ohi Hiroyuki
Hand and Microsurgery Center, Seirei Hamamatsu General Hospital, Hamamatsu, Shizuoka, Japan.
J Hand Surg Am. 2011 Jan;36(1):47-51. doi: 10.1016/j.jhsa.2010.08.035. Epub 2010 Nov 18.
Hamatometacarpal fracture-dislocation is a rare injury that consists of a fourth metacarpal fracture and a fifth carpometacarpal joint injury. We present the case of a 21-year-old man with a divergent hamatometacarpal fracture-dislocation that consisted of a combination of dorsal intra-articular fracture-dislocation of the fourth carpometacarpal joint, palmar dislocation of the fifth carpometacarpal joint, and fracture of the hook of the hamate. The mechanism of palmar dislocation of the fifth metacarpal base and fracture of the hook of the hamate involved extension of the fifth metacarpal and ulnopalmar load transmission.
钩骨掌骨骨折脱位是一种罕见的损伤，由第四掌骨骨折和第五腕掌关节损伤组成。我们报告一例21岁男性的分离性钩骨掌骨骨折脱位病例，其包括第四腕掌关节背侧关节内骨折脱位、第五腕掌关节掌侧脱位以及钩骨钩骨折。第五掌骨基底掌侧脱位和钩骨钩骨折的机制涉及第五掌骨的伸展和尺掌侧负荷传递。
