Shanghai Key Laboratory of Orthopaedic Implants, Department of Orthopaedic Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200011, People's Republic of China.
Department of Orthopedics, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, 200233, People's Republic of China.
BMC Musculoskelet Disord. 2022 May 11;23(1):437. doi: 10.1186/s12891-022-05404-8.
Mechanical failure, power shortage, and inadvertent contamination of the oscillating saw occasionally occurs in actualizing femoral neck osteotomy during total hip arthroplasty (THA); however, no appropriate alternative solution is currently available. This study aimed to introduce a novel osteotomy instrumentation (fretsaw, jig, cable passer hook) as a substitute tool while the oscillating saw was unavailable during THA.
This study included 40 patients (40 hips) who underwent femoral neck osteotomy during primary THA using the new osteotomy instrumentation (n = 20) and the oscillating saw (n = 20). Clinical data and intraoperative findings of all patients were evaluated.
The mean osteotomy time was 22.3 ± 3.1 s (range, 17-30 s) and 29.4 ± 3.7 s (range, 25-39 s) in the oscillating saw group and in the new osteotomy instrumentation group, respectively (P < 0.001). The Harris Hip Score (HHS) improved in both groups; the mean HSS was 82.3 ± 2.5 and 83.3 ± 3.5 in the oscillating saw group and new osteotomy instrumentation group at 6 months after surgery, respectively (P = 0.297).
The original osteotomy instrumentation can be an ideal substitute tool for femoral neck osteotomy in THA, especially when the oscillating saw is unavailable or malfunctioning.
在全髋关节置换术（THA）中实现股骨颈截骨时，机械故障、电源故障和摆动锯偶然污染偶尔会发生；然而，目前没有合适的替代解决方案。本研究旨在介绍一种新型截骨仪器（钢丝锯、夹具、钢缆过线钩），作为摆动锯在 THA 中不可用时的替代工具。
本研究纳入了 40 例（40 髋）在初次 THA 中使用新型截骨仪器（n=20）和摆动锯（n=20）进行股骨颈截骨的患者。评估了所有患者的临床数据和术中发现。
摆动锯组的平均截骨时间为 22.3±3.1 s（范围 17-30 s），新截骨仪器组为 29.4±3.7 s（范围 25-39 s）（P<0.001）。两组的 Harris 髋关节评分（HHS）均改善；术后 6 个月，摆动锯组和新截骨仪器组的平均 HHS 分别为 82.3±2.5 和 83.3±3.5（P=0.297）。
原始截骨仪器可以成为 THA 中股骨颈截骨的理想替代工具，尤其是在摆动锯不可用或出现故障时。
