TABLE V.

Anterior Knee Pain, Range of Motion, and Extensor Lag

Outcome	Nonresurfacing (N = 60; 56%)	Resurfacing (N = 48; 44%)	Total (N = 108)	P Value
Anterior knee pain (no.)
Present	13 (22%)	13 (27%)	26 (24%)	0.51
Grade I	7 (12%)	6 (13%)	13 (12%)
Grade II	2 (3%)	5 (10%)	7 (7%)
Grade III	4 (7%)	2 (4%)	6 (6%)
Mean range of motion (SD) (deg)	106 (21.1)	105 (22.5)	105 (21.6)	0.87
Mean extensor lag (SD) (deg)	4 (12.8)	2 (5.3)	3 (10.2)	0.43
MSTS score (SD)* (%)	81 (25.8)	71 (33.7)	76	0.34
Mean follow-up time (range)* (yr)	2.8 (1-10)	4.5 (1-11)	3.6	0.02

^*The mean MSTS score and follow-up time are for sixty-two patients (thirty-two in the nonresurfacing group and thirty in the resurfacing group).