J Knee Surg 2011; 24(2): 117-124
DOI: 10.1055/s-0031-1280882
ORIGINAL ARTICLE

© Thieme Medical Publishers

Difference in Stair Negotiation Ability Based on TKA Surgical Approach

Michelle S. Varnell1 , Manoshi Bhowmik-Stoker1 , John McCamley3 , Marc C. Jacofsky1 , 2 , Mark Campbell2 , David Jacofsky2
  • 1Banner Sun Health Research Institute, Phoenix, Arizona
  • 2Department of Orthopedic Surgery, The CORE Institute, Phoenix, Arizona
  • 3Department of Human Movement and Sports Sciences, Rome University of Rome “Foro Italico,” Rome, Italy
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Publikationsdatum:
07. Juni 2011 (online)

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ABSTRACT

Several surgical approaches for total knee arthroplasty (TKA) have been developed to minimize soft-tissue trauma and expedite functional recovery. A group of 61 subjects undergoing computer-navigated, minimally invasive TKA were randomized to receive a mini-parapatellar, standard parapatellar, mini-midvastus (MV), or mini-subvastus approach. Before and after treatment, subjects were asked to negotiate stairs in a self-selected manner. This study used the manner of stair negotiation (i.e., use of handrail, step-over-step, step-by-step) as a proxy for functional ability. Subjects who received TKA through a mini-MV approach demonstrated a significantly lower level of function at 2 and 4 months. If early functional recovery is a goal of TKA, surgeons should be cautious when considering the mini-MV approach, which was found to be inferior to other approaches in this study.

REFERENCES

Michelle S VarnellM.S. 

ATC, SHRI-CORE Laboratory, Banner Sun Health Research Institute

14520 West Granite Valley Drive, Suite 100, Sun City, AZ 85375

eMail: michelle.varnell@thecoreinstitute.com