Total Knee Arthroplasty in Moderate to Severe Fixed Flexion Deformity in a Tertiary Care Center: A Descriptive Cross-sectional Study

Abstract

Introduction: Performing the total knee arthroplasty in moderate to severe fixed flexion deformity, appropriate resection of bone from distal femur along with proper ligament balancing is mandatory in order to get the reasonable intraoperative correction. The aim of our study is to find out the prevalence of total knee arthroplasty among knees with moderate to severe fixed flexion deformity in a tertiary care center.

Methods: This is a descriptive cross-sectional study conducted from hospital records of 2013 to 2019 in elderly patients with moderate to severe fixed flexion deformity in a Tertiary Care Hospital. Ethical clearance (14/2020) was taken from Institutional Review Board. Convenience sampling was used and statistical analyses were performed using the Statistical Package for the Social
Sciences software (version 16.0). Point estimate at 95% confidence interval was calculated along with frequency and proportion for binary data.

Results: Out of 400 knees with moderate to severe fixed flexion deformity, the prevalence of total knee arthroplasty was found to be 80 knees (20%) (16.08-23.92 at 95% Confidence Interval).

Conclusions: The prevalence of total knee arthroplasty is comparable to other study. In our study total knee arthroplasty can be performed successfully with excellent functional outcomes in patients with moderate to severe fixed flexion deformity of knee joint provided the joint stability is maintained by appropriate ligamentous balancing.