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Int Orthop. 2009 Dec;33(6):1473-81. doi: 10.1007/s00264-009-0743-z. Epub 2009 Mar 11.

Minimally invasive total hip arthroplasty: a systematic review.

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Department of Orthopaedic Surgery, Shanghai Sixth People's Hospital, Medical College, Shanghai Jiaotong University, Shanghai, China.


The purpose of this study was to compare the operative outcome between mini and standard incisions in total hip arthroplasty (THA). We identified 12 randomised or quasi-randomised control trials (RCT or qRCT) published between 1996 and 2008. Subgroup and sensitivity analyses were performed to evaluate the differences in results for surgical approach, trial quality, and follow-up duration. Operative time and blood loss were significantly reduced in the mini-incision group for studies with the posterior or posterolateral approach. Concerning postoperative complications, there were no significant differences between the two groups with no significant heterogeneity. No differences were observed between the two groups for Harris hip score and radiographic results except for cup anterversion. Although mini-incision appeared to have similar outcomes compared to standard incision, the follow-up is short-term according to current standards in THA. High-quality studies are required to compare the outcomes of these two procedures.

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