May Megan M, Lawton Jeffrey N, Blazar Philip E
Division of Orthopaedic Surgery, University of Kentucky, Lexington, KY, USA.
J Hand Surg Am. 2002 Nov;27(6):965-71. doi: 10.1053/jhsu.2002.36525.
Ulnar-sided injuries of the wrist have received more attention recently for their potential negative impact on the outcome of distal radius fractures. Radiographs and medical records were retrospectively reviewed for 166 distal radius fractures treated during a 1-year interval. Distal radius fractures were classified according to the AO system, and accompanying ulnar styloid fractures were evaluated for both size and displacement. Each distal radius fracture was also evaluated for radiographic and clinical evidence of distal radioulnar joint instability. The distribution of ulnar styloid fractures was not random; greater than one third involved the base. All distal radius fractures complicated by distal radioulnar joint instability were accompanied by an ulnar styloid fracture. A fracture at the ulnar styloid's base and significant displacement of an ulnar styloid fracture were found to increase the risk of distal radioulnar joint instability.
手腕尺侧损伤因其对桡骨远端骨折预后的潜在负面影响，近来受到了更多关注。对在1年时间内治疗的166例桡骨远端骨折的X线片和病历进行了回顾性分析。桡骨远端骨折根据AO系统进行分类，同时对伴随的尺骨茎突骨折的大小和移位情况进行评估。对每一例桡骨远端骨折还评估了下尺桡关节不稳定的影像学和临床证据。尺骨茎突骨折的分布并非随机；超过三分之一累及基底部。所有合并下尺桡关节不稳定的桡骨远端骨折均伴有尺骨茎突骨折。发现尺骨茎突基底部骨折以及尺骨茎突骨折的明显移位会增加下尺桡关节不稳定的风险。
