Department of Orthopaedic Surgery, The Second Affiliated Hospital, Fujian Medical University, Quanzhou, Fujian, 362000, China.
BMC Musculoskelet Disord. 2023 Aug 12;24(1):648. doi: 10.1186/s12891-023-06774-3.
Postoperative limb length discrepancy (LLD) is a common complication of total hip arthroplasty, and several methods exist to prevent LLD, but each has its benefits and drawbacks. The study investigates the application of intraoperative lower limb length measurement in preventing postoperative LLD.
This study retrospectively analyzed 70 patients who underwent total hip arthroplasty from October 2018 to July 2022. The length of the lower limb on the operated side was measured intraoperatively using a sterilized paper ruler after the fitting of the trial mould and compared with the healthy side. Then the prosthesis size, depth and neck length were adjusted accordingly.
The absolute value of postoperative LLD was found to be 6.68 ± 4.48 mm, of which 53 cases (75.7%) were less than or equal to 10 mm, while 30 patients (42.9%) were less than or equal to 5 mm.
The use of intraoperative measurement is effective in reducing LLD after total hip arthroplasty.
术后肢体长度差异（LLD）是全髋关节置换术的常见并发症，有几种方法可预防 LLD，但每种方法都有其优点和缺点。本研究探讨了术中下肢长度测量在预防术后 LLD 中的应用。
本研究回顾性分析了 2018 年 10 月至 2022 年 7 月期间接受全髋关节置换术的 70 例患者。在试模装配后，使用经过消毒的纸尺对手术侧下肢长度进行术中测量，并与健侧进行比较。然后相应地调整假体大小、深度和颈长。
术后 LLD 的绝对值为 6.68±4.48mm，其中 53 例（75.7%）小于或等于 10mm，30 例（42.9%）小于或等于 5mm。
术中测量可有效减少全髋关节置换术后 LLD。
