The purpose of this study was to evaluate the outcomes of total hip arthroplasty (THA) following less invasive hip-preserving procedures (LIHPs) and present a critical overview of the literature to aid in better result interpretation. The search time was from the establishment of the database to September 2021, and the outcome indicators were extracted and analyzed by Cochrane Collaboration Review Manager software (RevMan version 5.4). Finally, 10 articles were included in this meta-analysis by searching Chinese databases and English databases. Three of them were published in Chinese, and the remaining studies were published in English. LIHP was further divided into the tantalum rod implantation group and the non-tantalum rod implantation group. The results showed that prior tantalum rod implantation increased the difficulty of conversion to THA, which was reflected mainly in the longer operative time [weighted mean difference (WMD) = 24.50, 95% confidence interval (CI) = 14.09–34.91, P < 0.00001] and greater intraoperative blood loss (WMD = 114.74, 95% CI = 33.52–195.96, P = 0.006), while no significant difference was found between the non-tantalum rod implantation group and the control group. Simultaneously, easier intraoperative fracture [odds ratio (OR) = 5.88, 95% CI = 0.93–37.05, P = 0.06] and stem malalignment (OR = 4.17, 95% CI = 1.18–14.71, P = 0.03) in the LIHP group tended to be observed than in the control THA group. However, there was no significant difference in cup anteversion and inclination angle, ectopic ossification, postoperative Harris Hip Score and survivorship between the LIHP group and the control group. Although LIHP increased the difficulty of the conversion to THA, it does not detrimentally affect the clinical results of subsequent THA in the mid-term follow-up.

中文翻译：

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微创保髋手术对股骨头坏死后续髋关节置换术的影响

本研究的目的是评估微创保髋手术 (LIHPs) 后全髋关节置换术 (THA) 的结果，并对文献进行批判性概述，以帮助更好地解释结果。检索时间为建库至2021年9月，利用Cochrane Collaboration Review Manager软件（RevMan 5.4版）提取和分析结局指标。最后，通过检索中文数据库和英文数据库，10篇文章被纳入本次荟萃分析。其中三篇以中文发表，其余研究以英文发表。LIHP进一步分为钽棒植入组和非钽棒植入组。结果表明，先前的钽棒植入增加了转换为 THA 的难度，这主要反映在较长的手术时间上[加权平均差 (WMD) = 24.50, 95% 置信区间 (CI) = 14.09–34.91, P <; 0.00001]和更大的术中失血量（WMD = 114.74, 95% CI = 33.52-195.96, P = 0.006），而非钽棒植入组与对照组之间无显着差异。同时，LIHP 组更容易发生术中骨折 [优势比 (OR) = 5.88, 95% CI = 0.93–37.05, P = 0.06] 和柄错位 (OR = 4.17, 95% CI = 1.18–14.71, P = 0.03)比对照组 THA 组更容易观察到。但LIHP组与对照组的杯前倾角、外倾角、异位骨化、术后Harris髋关节评分及存活率均无显着差异。