Research Article| Volume 58, ISSUE 4, P687-691, July 2019

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Relationship Between Body Mass Index and Complications in Total Ankle Arthroplasty: A Single Surgeon's Experience in Ninety-Seven Replacements

Published:April 20, 2019DOI:


      The purpose of this study was to compare complication rates of total ankle replacement in 2 groups of patients based on their body mass index (BMI). The total cohort was divided into 2 groups based on BMI. Group 1 included patients with a BMI ≤30 kg/m2. Group 2 included patients with a BMI >30 kg/m2. Available charts were reviewed for patients who underwent primary total ankle arthroplasty. Patient demographics, BMI, prosthesis used, concomitant procedures, and intraoperative and postoperative complications were recorded. Ninety-seven patients met the inclusion criteria and underwent total ankle replacement between March 2012 and July 2016. Mean follow-up was 26.3 (range 12 to 62) months. Mean age was 66.4 (range 23 to 85) years. Mean BMI was 29.6 (range 20.6 to 49.5) kg/m2. Forty-three males and 54 females were included. There were 53 patients in group 1 (BMI ≤30 kg/m2) and 44 patients in group 2 (BMI >30 kg/m2). Total complication rates for group 1 and 2 were 18.9% (10 of 53) and 11.4% (5 of 44), respectively. There were a total of 10 minor complications and 5 major complications. There was no statistical difference between the groups (p = .308) in terms of complication rates. All patients underwent at least 1 concomitant procedure at the time of the index ankle replacement. We found that total ankle replacement can be safely utilized in patients with a BMI >30 kg/m2. In the present study, there was no statistical significance in complication rates in the 2 groups.

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