Evans D L, Stauber M, Frykman G K
Department of Orthopaedic Surgery, Loma Linda University School of Medicine, California.
Clin Orthop Relat Res. 1990 Feb(251):162-5.
It is well known that tendon or muscle interposition can cause fractures to be irreducible by closed means. A rare tendon interposition of extensor carpi ulnaris occurred in an 11-year-old boy. The isolated displaced distal ulnar physeal injury was the result of a motor vehicle accident. Attempts to perform a closed reduction failed. At operation, an interposed extensor carpi ulnaris tendon was found. After repositioning the tendon, a near anatomic reduction was easily accomplished. Only two cases seem to have been reported in the literature on the need for open reduction of distal ulnar physeal injury, none with an interposed tendon. Interposed extensor carpi ulnaris tendon should be considered as a cause of irreducible displaced distal ulna epiphyseal fracture.
众所周知，肌腱或肌肉嵌入会导致骨折无法通过闭合方法复位。一名11岁男孩发生了罕见的尺侧腕伸肌嵌入情况。单纯的尺骨远端骨骺移位损伤是机动车事故所致。闭合复位尝试失败。手术时发现有尺侧腕伸肌肌腱嵌入。重新放置肌腱后，很容易实现近乎解剖复位。关于尺骨远端骨骺损伤需要切开复位的情况，文献中似乎仅报道过两例，均无肌腱嵌入。尺侧腕伸肌肌腱嵌入应被视为尺骨远端骨骺移位骨折无法复位的一个原因。
