Fig. 1

Mean values of each outcome measurement, and within group p-values to compare data at baseline, 3 months, 1 year, and 5 years postoperatively. (A) Timed Up and Go test; (B) Two-minute walk test; (C) Numerical rating scale - pain; (D) Range of motion; and, (E) Modified knee score (The numbers (n) in each graph indicate the number of patients with complete follow-up data at all time points. The data were analyzed by using analysis of covariance (ANCOVA). A p-value represents a comparison of each outcome between the current time point and the previous time point)