A prospective study of the relationship of first day straight leg raise (SLR) to end range of movement took place. The ability to do SLR was used to measure patients’ motivation. A standard medial parapatellar approach was used, all patients has osteoarthritis. Responses from 100 patients were analyzed (divided into 3 groups)
-Flexion on discharge (mean) was 74° -Flexion at end follow up (mean) was 104° Group II: 27% of patients SLR at day two postoperatively,
-Flexion on discharge (mean) was 66° -Flexion at end follow up (mean) was 97° Group III: 26% of patients SLR at day 3 or more postoperatively,
-Flexion on discharge (mean) was 66° -Flexion at end follow up (mean) was 95° Functional scores including WOMAC, SF-36 and pre-operative deformity did not vary even though Group I shows statistically significant increase in flexion at end follow up.
