Factors determing range of motion post operatively in total knee arthroplasty

Objective: Patient satisfaction after total knee arthroplasty is dependent on post operative range of motion and pain. This study is an attempt to determine the influence of factors like age, sex, BMI, pre op flexion, Tibiofemoral angle on post operative range of motion. Materials and Methods: The sample size was 94, of which 4 patients were lost in follow up. The patients included were ones with similar type of implant, primary cases, similar technique and surgeon. Demographics, pre op range of motion using goniometer and tibiofemoral angle on radiographs was determined. The cases were followed up regularly for 1 year and the range was noted. Results: Factors like age, BMI, pre operative flexion, Tibiofemoral angle determine the amount of flexion post operatively. However factor like sex is not statistically significant. The p value for pre operative flexion and tibiofemoral angle is <0> Conclusion: Proper patient counseling about the range of motion achievable post operatively balancing the factors affecting it is important for patient satisfaction. Total knee arthroplasty, range of motion, pre op flexion, tibiofemoral angle.