Table 4.

Pre-Operative, Post-Operative and Change in Scores

Measures	Mean Scores (sd)
	Pre-Operative			Post-Operative			Change
	Overall	Hip	Knee	Overall	Hip	Knee	Overall	Hip	Knee
WOMAC pain	31.9 (21.0)	33.6 (26.5)	30.5 (16.5)	86.4 (13.1)	85.9 (16.4)	86.8 (10.9)	+53.1 (26.9)	52.3 (34.5)	53.8 (19.7)
WOMAC stiffness	31.9 (22.0)	31.8 (23.3)	32.0 (21.9)	84.7 (22.8)	83.0 (29.7)	85.9 (17.6)	+52.4 (33.2)	51.1 (38.5)	53.3 (30.1)
WOMAC function	28.4 (20.3)	29.1 (26.1)	28.0 (16.3)	88.1 (11.4)	88.5 (12.8)	88.0 (10.9)	+59.7 (23.0)	59.4 (26.1)	59.9 (21.5)
SF-36 mental health	74.3 (17.1)	82.2 (18.0)	69.2 (14.9)	88.6 (14.6)	92.0 (10.9)	86.3 (16.6)	+14 (16.7)	9.8 (11.2)	16.9 (19.5)
SF-36 physical function	14.3 (17.9)	15.7 (23.9)	13.4 (13.1)	74.7 (19.5)	76.7 (22.5)	73.4 (17.9)	+61.1 (24.3)	59.9 (25.6)	61.9 (24.2)