Fig. 2.

A graph shows improvement in the joint-specific WOMAC pain score from preoperatively to 3 months and 1 year postoperatively. Preoperatively, ipsilateral knee WOMAC pain scores (80 ± 27) were lower than those for the contralateral side (95 ± 15). Postoperatively, ipsilateral knee WOMAC pain scores improved to 96 ± 12 and 96 ± 13 at 3 months and 1 year, respectively. When compared with the contralateral WOMAC knee pain scores at 3 months (96 ± 14) and 1 year (96 ± 12), there were no differences between knees. Preoperatively, the WOMAC hip pain score for the entire cohort was 44 ± 23, which improved to 92 ± 14 and 92 ± 16 at 3 months and 1 year, respectively. The WOMAC pain scores for the contralateral hip and knee did not change. Hatched bar = preoperative; gray bar = 3 months; black bar = 1 year.