Body Mass Index Classification Is Independently Associated with Health-Related Quality of Life after Primary Total Knee Arthroplasty: An Institutional Registry-Based Study

The purpose of this study was to compare the health-related quality of life (HRQoL) before and after successful total knee arthroplasty (TKA) across World Health Organization (WHO) body mass index (BMI) classifications. Through an institutional registry, patients with end-stage knee osteoarthritis who received elective primary unilateral TKA were identified and categorized based on WHO BMI classification. Age, gender, laterality, year of...