Hiragami Ken, Ishii Jyunji
Department of Orthopaedics, Miyukikai Hospital, Benten, Kaminoyama, Yamagata, Japan.
J Int Med Res. 2018 Mar;46(3):1103-1108. doi: 10.1177/0300060517726195. Epub 2017 Oct 30.
Objective The management of reverse oblique intertrochanteric femoral fractures is difficult because such fractures have unique biomechanical characteristics. This study was performed to review the results of treating reverse oblique intertrochanteric femoral fractures with a long cephalomedullary nail by embedding the lateral end of the lag screw to secure axial compression. Methods We herein report the surgical outcomes in seven patients with reverse oblique intertrochanteric fractures treated with our procedure. Patients whose hip screws obviously had no contact with the distal fragment and whose follow-up time was too short were excluded. The lateral end of the lag screw was embedded within the lateral cortex, and the screws were locked to the nail. All nails were long, and a distal locking screw was inserted in the dynamized position. Results No reoperation, definite leg length discrepancy, or malunion occurred in this study. Conclusions These data suggest that early complications do not seem to increase when the lateral end of the lag screw is embedded and the screw is locked to the nail in the treatment of reverse oblique intertrochanteric fracture at this stage.
目的 股骨转子间反向斜形骨折的治疗具有挑战性,因为此类骨折具有独特的生物力学特性。本研究旨在回顾采用长型髓内钉并通过嵌入拉力螺钉的外侧端以确保轴向加压来治疗股骨转子间反向斜形骨折的结果。方法 我们在此报告7例采用该方法治疗的股骨转子间反向斜形骨折患者的手术结果。排除髋螺钉明显未与远折端接触以及随访时间过短的患者。拉力螺钉的外侧端嵌入外侧皮质内,并将螺钉锁定于髓内钉。所有髓内钉均为长型,且一枚远端锁定螺钉在动力化位置插入。结果 本研究中未发生再次手术、明显的肢体长度差异或骨不连。结论 这些数据表明,在此阶段治疗股骨转子间反向斜形骨折时,当拉力螺钉的外侧端嵌入并将螺钉锁定于髓内钉时,早期并发症似乎并未增加。