Takase Katsumi
Department of Orthopedic Surgery, Tokyo Medical University, 6-7-1 Nishishinjuku Shinjuku-ku, Tokyo 160-0023, Japan.
Orthopedics. 2008 Oct;31(10).
All perilunate fracture-dislocations combine ligament ruptures, bone avulsions, and fractures in a variety of clinical forms. Two mechanisms of the injury may result in a carpal dislocation: direct and indirect. Most dorsal perilunate dislocations are the result of an indirect mechanism of injury, usually consisting of an extreme extension of the wrist joint, associated with variable degree ulnar deviation and radiocarpal or midcarpal supination. Many factors may explain the occurrence of one or another type of injury: age, differences in direction and magnitude of the deforming forces, and differences in position of the wrist joint at the time of impact.
所有月骨周围骨折脱位均合并韧带断裂、骨撕脱及骨折，有多种临床类型。损伤的两种机制可导致腕关节脱位：直接和间接机制。大多数月骨背侧脱位是间接损伤机制的结果，通常由腕关节极度背伸，伴有不同程度的尺侧偏斜及桡腕关节或腕中关节旋后组成。许多因素可解释某一类型损伤的发生：年龄、致伤力方向和大小的差异以及撞击时腕关节位置的差异。
