The Journal of Arthroplasty
Volume 24, Issue 7 , Pages 1024-1032, October 2009

Quadriceps-Sparing, Minimal-Incision Total Knee Arthroplasty:

A Comparative Study

  • Wei-Peng Lin, MD

      Affiliations

    • Department of Orthopedics, National Taiwan University Hospital, Taipei, Taiwan
    • ,
  • Jinn Lin, PhD

      Affiliations

    • Department of Orthopedics, National Taiwan University Hospital, Taipei, Taiwan
    • National Taiwan University College of Medicine, Taipei, Taiwan
    • ,
  • Lih-Ching Horng

      Affiliations

    • Department of Orthopedics, National Taiwan University Hospital, Taipei, Taiwan
    • ,
  • Shun-Min Chang, MD

      Affiliations

    • Department of Orthopedics, National Taiwan University Hospital, Taipei, Taiwan
    • ,
  • Ching-Chuan Jiang, PhD

      Affiliations

    • Department of Orthopedics, National Taiwan University Hospital, Taipei, Taiwan
    • National Taiwan University College of Medicine, Taipei, Taiwan
    • Corresponding Author InformationReprint requests: Ching-Chuan Jiang, MD, PhD, Department of Orthopedics, National Taiwan University Hospital, No. 7, Chung-Shan South, Road, Taipei, Taiwan.

Received 10 July 2007; accepted 9 July 2008. published online 01 September 2008.

Abstract 

Our study was conducted to compare radiographic alignments and functional outcomes with 2 approaches to minimal-incision total knee arthroplasty (TKA): the minimal-incision medial parapatellar (MP) approach and the quadriceps-sparing (QS) approach with side-cutting instruments. Sixty patients (80 knees) with primary osteoarthritis were randomly assigned to receive MP or QS TKA. Postoperative alignment of the femoral component was significantly less valgus, and postoperative alignment of the tibial component was significantly more varus with the QS approach than with the MP approach. One tibial outlier and 3 femoral outliers were observed with QS TKA. The overall postoperative hip-knee-ankle axis was more varus, and surgical time was longer with QS TKA. Short-term isokinetic peak muscle torque, postoperative pain, and functional outcomes did not differ between the approaches.

Keywords: quadriceps-sparing, minimal incision, total knee arthroplasty, muscle strength, alignment

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 No benefits or funds were received in support of the study.

PII: S0883-5403(08)00613-X

doi:10.1016/j.arth.2008.07.005

The Journal of Arthroplasty
Volume 24, Issue 7 , Pages 1024-1032, October 2009

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