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Treatment of Ankle Osteoarthritis with Total Ankle Replacement Through a Lateral Transfibular Approach
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Published on: January 24, 2018

Mean BMI of overweight and obese patients does not decrease after successful ankle reconstruction.

Murray John Penner1, Hossein Pakzad, Alastair Younger

  • 1Department of Orthopaedics, St. Paul’s Hospital, Vancouver, British Columbia, Canada.

The Journal of Bone and Joint Surgery. American Volume
|May 4, 2012
PubMed
Summary
This summary is machine-generated.

Successful ankle surgery reduces pain and disability in overweight patients, but does not lead to weight loss. Preoperative body mass index (BMI) is the main predictor of postoperative BMI.

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Area of Science:

  • Orthopedics
  • Metabolic Health
  • Surgical Outcomes

Background:

  • End-stage arthritis is often linked to higher body mass index (BMI).
  • Overweight patients with ankle arthritis frequently seek surgery for potential weight loss benefits.

Purpose of the Study:

  • To evaluate changes in body mass index (BMI) after successful ankle replacement or fusion in overweight and obese patients.
  • To determine if ankle surgery facilitates weight loss in this population.

Main Methods:

  • Retrospective analysis of 145 overweight/obese patients undergoing successful ankle replacement or fusion.
  • Comparison of preoperative BMI with postoperative BMI at 6 months, 1, 2, and 5 years.
  • Linear regression to correlate outcome scores with BMI over time.

Main Results:

  • No significant change in mean BMI was observed at any postoperative time point.
  • Significant improvements in Ankle Osteoarthritis Scale (AOS) and SF-36 Physical Component Summary scores were noted.
  • Preoperative BMI was the strongest predictor of postoperative BMI.

Conclusions:

  • Ankle surgery effectively reduces pain and disability in overweight/obese patients.
  • Weight loss is not a common outcome following successful ankle reconstruction.
  • Obesity in these patients likely stems from factors beyond limited mobility due to ankle arthritis.