Does robot-assisted surgery reduce leg length discrepancy in total hip replacement? Robot-assisted posterior approach versus direct anterior approach and manual posterior approach: a propensity score-matching study

被引:7
作者
Ma, Mingyang [1 ,2 ,3 ]
Song, Ping [1 ,2 ,3 ]
Zhang, Shuai [1 ,2 ,3 ]
Kong, Xiangpeng [2 ,3 ]
Chai, Wei [2 ,3 ]
机构
[1] Chinese PLA Med Sch, Beijing, Peoples R China
[2] Chinese Peoples Liberat Army Gen Hosp, Dept Orthoped, Med Ctr 4, Fuxing Rd 28, Beijing, Peoples R China
[3] Natl Clin Res Ctr Orthoped Sports Med & Rehabil, Beijing, Peoples R China
基金
中国国家自然科学基金;
关键词
Total hip replacement; Leg length discrepancy; Propensity score-matching study; ACETABULAR COMPONENT; KNEE REPLACEMENT; ARTHROPLASTY; REHABILITATION;
D O I
10.1186/s13018-023-03864-9
中图分类号
R826.8 [整形外科学]; R782.2 [口腔颌面部整形外科学]; R726.2 [小儿整形外科学]; R62 [整形外科学(修复外科学)];
学科分类号
摘要
BackgroundAdvocates of robot-assisted technique argue that robots could improve leg length restoration in total hip replacement. However, there were few studies to compare the robot-assisted posterior approach (RPA) with conventional posterior approach (PA) THA and direct anterior approach (DAA) THA in LLD. This study aimed to determine whether robot-assisted techniques could significantly reduce LLD compared to manual DAA and manual PA.MethodsWe retrospectively reviewed the cohort of consecutive ONFH patients who underwent THA robot-assisted posterior, manual posterior, and manual DAA from January 2018 to December 2020 in one institution. One experienced surgeon performed all procedures. We calculated the propensity score to match similar patients in different groups by multivariate logistic regression analysis for each patient. We included confounders consisting of age at the time of surgery, sex, body mass index (BMI), and preoperative LLD. Postoperative LLD and Harris hip scores (HHS) at two years after surgery of different cohorts were compared.ResultWe analyzed 267 ONFH patients treated with RPA, DAA, or PA (73 RPA patients, 99 DAA patients, and 95 PA patients). After propensity score matching, we generated cohorts of 40 patients in DAA and RPA groups. And we found no significant difference in postoperative LLD between RPA and DAA cohorts (4.10 & PLUSMN; 3.50 mm vs 4.60 & PLUSMN; 4.14 mm, p = 0.577) in this study. The HHS at 2 years postoperatively were 87.04 & PLUSMN; 7.06 vs 85.33 & PLUSMN; 8.34 p = 0.202. After propensity score matching, we generated cohorts of 58 patients in manual PA and RPA groups. And there were significant differences in postoperative LLD between the RPA and PA cohorts. (3.98 & PLUSMN; 3.27 mm vs 5.38 & PLUSMN; 3.68 mm, p = 0.031). The HHS at 2 years postoperatively were 89.38 & PLUSMN; 6.81 vs 85.33 & PLUSMN; 8.81 p = 0.019. After propensity score matching, we generated cohorts of 75 patients in manual DAA and PA groups. And there were significant differences in postoperative LLD between the DAA and PA cohorts. (4.03 & PLUSMN; 3.93 mm vs 5.39 & PLUSMN; 3.83 mm, p = 0.031) The HHS at 2 years postoperatively were 89.71 & PLUSMN; 6.18 vs 86.91 & PLUSMN; 7.20 p = 0.012.ConclusionThis study found no significant difference in postoperative LLD between RPA and DAA, but we found a significant difference between RPA and manual PA, DAA and manual PA in ONFH patients. We found a significant advantage in leg length restoration in primary total hip arthroplasty with robot-assisted surgery.
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页数:9
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