Assessment of Post-Operative Knee Range of Motion in Total Knee Arthro-plasty in Relation to Preoperative Hip Range of Motion

Background: Total knee arthroplasty (TKA) is one of the best surgical treatments for people with end-stage kneeosteoarthritis (OA) because it relieves discomfort and helps them move around again. The range of motion (ROM)of the knee after surgery is a very important feature that affects how happy patients are. There has been a lot ofresearch on preoperative factors such body mass index (BMI), tibiofemoral angle, and preoperative knee ROM.However, it is still not obvious how beforehand ROM affects postoperative knee flexion hip.Aim: To find out how preoperative hip ROM affects knee flexion three months after surgery in people who havemain TKA.Methodology: This study was done at the Department of Orthopaedics at Justice K.S. Hegde Charitable Hospitalin Mangalore from September 2022 to April 2024. We looked at 23 patients with primary knee OA who werehaving TKA. Before the surgery, they measured the hip and knee ROM, BMI, serum albumin, HbA1c, andtibiofemoral angle. Three months after the operation, the knee flexion was assessed. We used SPSS software todo statistical analysis and Spearman's correlation to find connections.Results: The average knee flexion three months after surgery was 94.78° ± 8.46°. There were strong negativerelationships between BMI (r = -0.475, p = 0.022) and tibiofemoral angle (r = -0.421, p = 0.046) and knee flexionafter surgery. Preoperative hip flexion and postoperative knee flexion had a moderate positive connection (r =0.406, p = 0.054), which was close to being statistically significant. There was no significant link between otherhip motions, age, serum albumin, or HbA1c and surgical outcomes.Conclusion: Hip flexion before surgery may affect knee flexion after TKA, which means that hip mobility shouldbe taken into account during the preoperative evaluation. BMI and the tibiofemoral angle are still crucial factorsthat can help predict how much range of motion the knee will have after surgery. More research with bigger groupsis needed to confirm these results.