The Journal of Arthroplasty
Volume 23, Issue 2 , Pages 197-202, February 2008

Component Position in 2-Incision Minimally Invasive Total Hip Arthroplasty Compared to Standard Total Hip Arthroplasty

  • Susan Lai Williams, MD

      Affiliations

    • Department of Orthopaedic Surgery, George Washington University, Washington, DC
    • Corresponding Author InformationReprint requests: Paul Manner, MD, FRCSC, Department of Orthopaedics and Sports Medicine, University of Washington, 1959 Pacific Street NE, Box 356500, Seattle, WA 98105-6500.
    • ,
  • Casey Bachison, BS

      Affiliations

    • George Washington University School of Medicine and Health Sciences, Washington, DC
    • ,
  • James D. Michelson, MD

      Affiliations

    • Department of Orthopaedic Surgery, George Washington University Medical Center, Washington, DC
    • ,
  • Paul A. Manner, MD, FRCSC

      Affiliations

    • Department of Orthopaedics and Sports Medicine, University of Washington, Seattle, Washington

Received 9 August 2006; accepted 10 December 2006.

Abstract 

Minimally invasive surgery (MIS) for total hip arthroplasty (THA) has sparked controversy in the orthopedic community, including debate regarding the reliability and reproducibility of component placement. We reviewed a single surgeon's 1-year experience by comparing postoperative radiographs of 67 MIS 2-incision THA and 28 standard THA for acetabular inclination, acetabular version, and femoral stem angulation. Acetabular inclination/version averaged 42.2°/16.5° and 38.7°/15.5° for MIS and THA, respectively. Femoral angulation averaged 0.007° varus and 0.411° varus for MIS and standard THA approaches, respectively. Radiographic assessment of component position of THA in 2-incision MIS vs a standard direct lateral approach reveals no significant differences. Components are placed in acceptable positions with both techniques.

Keywords: minimally invasive hip arthroplasty, orientation, radiographic comparison, outcome

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 No benefits and funds were received in support of this study.

PII: S0883-5403(06)00891-6

doi:10.1016/j.arth.2006.12.045

The Journal of Arthroplasty
Volume 23, Issue 2 , Pages 197-202, February 2008

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