Introduction: Total Knee Arthroplasty (TKA) is effective for managing severe knee involvement in Rheumatoid Arthritis (RA) patients. This study evaluates the clinical, functional, and radiographic outcomes of TKA in RA patients.

Material and Methods: A longitudinal study was conducted on 50 RA patients undergoing TKA at Mamata Medical College. Outcomes were assessed at baseline, discharge, 3 months, 6 months, and 1 year postoperatively using VAS for pain, KSS for knee function, WOMAC, SF-36, radiographic evaluations, patient satisfaction, and activity levels.

Results: VAS scores improved from 8.4 to 1.1, and KSS scores increased from 51.2 to 83.1 (both p < 0.001). WOMAC and SF-36 scores showed significant functional and quality of life improvements. Radiographic outcomes indicated stable implants with no major complications. Patient satisfaction and activity levels rose significantly.