Department of Orthopaedic Surgery, Shanghai Jiaotong University Affiliated Sixth People's Hospital, Shanghai, 200233, China.
Sci Rep. 2017 Apr 5;7:46109. doi: 10.1038/srep46109.
Fracture of fifth metacarpal neck commonly requires open reduction and internal fixation. However, the current methods of internal fixation in fifth metacarpal neck fractures remain unsatisfactory. Patients with fractures of fifth metacarpal neck received open reduction and internal fixation with either locking plate in combination with two crossed Kirschner wires (K-wires) or locking plate alone were evaluated for the clinical outcomes. Clinical outcomes included grip strength, Michigan hand outcomes questionnaire (MHQ), final angulation and range of motion (ROM) one year after treatment. The averages of MHQ scores, final angulation and ROM of fifth metacarpophalangeal joint of plate with K-wire group were more superior to those of plate group (MHQ 96.7 versus 86.6, final angulation 11.8 versus 23.6, ROM 83.3 versus 72.2). The grip strength had no significant difference between two groups. Locking plate in combination with two crossed K-wires is a more optimal method of fixation compared with locking plate alone.
第五掌骨颈骨折通常需要切开复位和内固定。然而，目前第五掌骨颈骨折的内固定方法仍不尽如人意。我们评估了接受切开复位内固定的第五掌骨颈骨折患者，内固定方法为锁定钢板联合两根交叉克氏针（K 线）或单独使用锁定钢板。临床结果包括握力、密歇根手功能问卷（MHQ）、治疗 1 年后的最终成角和关节活动度（ROM）。带 K 线组的 MHQ 评分、第五掌指关节的最终成角和 ROM 平均值均优于钢板组（MHQ96.7 对 86.6，最终成角 11.8 对 23.6，ROM83.3 对 72.2）。两组间握力无显著差异。与单独使用锁定钢板相比，锁定钢板联合两根交叉克氏针是一种更优的固定方法。
