Table 4.

Mean Short Form-36 scores

	Autograft + PRP			Autograft
	Preop	24 months	Change (p)	Preop	24 months	Change (p)
Physical function	31.6	68.4	36.8 (<0.001)	30.8	64.2	33.4 (<0.001)
Physical role	6.6	67.1	60.5 (<0.001)	11.8	44.7	32.9 (=0.011)
Bodily pain	25.3	70.0	44.7 (<0.001)	30.0	65.3	35.3 (<0.001)
General health	55.3	72.9	17.6 (=0.010)	56.6	73.7	17.1 (=0.002)
Vitality	63.9	74.5	10.5 (=0.263)	56.1	71.8	15.8 (=0.005)
Social function	51.3	82.2	30.9 (<0.001)	56.6	74.3	17.8 (=0.006)
Emotional role	40.4	77.2	36.8 (=0.002)	35.1	64.9	29.8 (=0.040)
Mental health	66.5	75.8	9.3 (=0.263)	61.1	73.5	12.4 (=0.031)

Change within each group (paired t test)