Sharma Abhinav K, Cizmic Zlatan, Carroll Kaitlin M, Jerabek Seth A, Paprosky Wayne G, Sculco Peter K, Gonzalez Della Valle Alejandro, Schwarzkopf Ran, Mayman David J, Vigdorchik Jonathan M
Department of Orthopaedic Surgery, University of California, Irvine, School of Medicine, 101 The City Drive South, Pavilion III, Building 29A, CA 92868 Orange, USA.
Department of Orthopaedic Surgery, Ascension Providence Hospital Southfield Campus, 16001 W Nine Mile Rd., Southfield, MI 48075 USA.
Indian J Orthop. 2022 Feb 24;56(6):1061-1065. doi: 10.1007/s43465-022-00606-7. eCollection 2022 Jun.
Computer navigation in total hip arthroplasty (THA) offers potential for more accurate placement of acetabular components, avoiding impingement, edge loading, and dislocation, all of which can necessitate revision THA (rTHA). Therefore, the use of computer navigation may be particularly beneficial in patients undergoing rTHA. The purpose of this study was to determine if the use of computer-assisted hip navigation reduces the rate of dislocation in patients undergoing rTHA.
A retrospective review of 72 patients undergoing computer-navigated rTHA between February 2016 and May 2017 was performed. Demographics, indications for revision, type of procedure performed, and incidence of postoperative dislocation were collected for all patients. Clinical follow-up was recorded at 3 months, 1 year and 2 years.
All 72 patients (48% female; 52% male) were included for analysis. The mean age was 70.4 ± 11.2 years and mean BMI was 26.4 ± 5.2 kg/m. 22 of 72 patients (31%) required a rTHA procedure due to instability resulting in dislocation. At 3 months, 1 year, and 2 years, there were no dislocations (0%). There was a significant reduction in dislocation rate after computer-navigated rTHA (0%) relative to that following primary THA in the same patient cohort (31%; < 0.05).
Our study demonstrates a significant reduction in dislocation rate following rTHA with computer navigation. Although the cause of postoperative dislocation is often multifactorial, the use of computer navigation may help to curtail femoral and acetabular malalignment in rTHA.
Level III: retrospective.
全髋关节置换术（THA）中的计算机导航技术为更精确地放置髋臼组件提供了可能，可避免撞击、边缘负荷和脱位，而这些情况都可能需要进行翻修全髋关节置换术（rTHA）。因此，计算机导航技术的应用对于接受rTHA的患者可能特别有益。本研究的目的是确定计算机辅助髋关节导航技术的使用是否能降低接受rTHA患者的脱位率。
对2016年2月至2017年5月期间接受计算机导航rTHA的72例患者进行回顾性研究。收集所有患者的人口统计学资料、翻修指征、所施行的手术类型以及术后脱位的发生率。在3个月、1年和2年时进行临床随访记录。
所有72例患者（48%为女性；52%为男性）均纳入分析。平均年龄为70.4±11.2岁，平均体重指数为26.4±5.2kg/m²。72例患者中有22例（31%）因不稳定导致脱位而需要进行rTHA手术。在3个月、1年和2年时，均未发生脱位（0%）。与同一患者队列中初次THA后（31%）相比，计算机导航rTHA后的脱位率显著降低（0%；P<0.05）。
我们的研究表明，计算机导航rTHA术后脱位率显著降低。尽管术后脱位的原因通常是多因素的，但计算机导航技术的应用可能有助于减少rTHA中股骨和髋臼的排列不齐。
III级：回顾性研究。
