Randomized Clinical Trial of 2-Incision vs Mini-Posterior Total Hip Arthroplasty: Differences Persist at 10 Years

Matthew Abdel, Brian P. Chalmers, Robert T. Trousdale, Arlen D. Hanssen, Mark Pagnano

Research output: Contribution to journalArticle

4 Scopus citations

Abstract

Background: A previous randomized clinical trial at our institution demonstrated slower recovery of 35 2-incision total hip arthroplasties (THAs) when compared with 36 mini-posterior THAs at 2 years. The primary aim of the present study was to report concise 10-year follow-up results. Methods: We retrospectively reviewed the 71 patients in the previous randomized clinical trial, comparing clinical outcomes, revisions, reoperations, and implant survivorship between the 2-incision and the mini-posterior THAs. Results: At the most recent follow-up, the mean Harris hip score was 85 in the 2-incision group and 87 in the mini-posterior group (P = .4). There were 4 revisions and 2 reoperations (16%) in the 2-incision group vs 1 revision and 3 reoperations (11%) in the mini-posterior group (P = .5). Ten-year survivorship free of aseptic revision or reoperation was 77% in the 2-incision group vs 90% in the mini-posterior group (P = .15). Conclusion: There were no improvements in early or midterm clinical outcomes with the 2-incision technique. However, there was a clinical trend toward a higher rate of aseptic revisions in the 2-incision THA group.

Original languageEnglish (US)
JournalJournal of Arthroplasty
DOIs
StateAccepted/In press - Feb 10 2017

Keywords

  • 2-incision total hip arthroplasty (THA)
  • Dislocation
  • Level 1
  • Mini-posterior total hip arthroplasty (THA)
  • Minimally invasive surgery (MIS)
  • Randomized clinical trial (RCT)

ASJC Scopus subject areas

  • Orthopedics and Sports Medicine

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