Table 4.

Primary outcome measurements on day 17

T2 ROM	PT + CPM N = 30		PT N = 30		P VALUE	95% CI
	Mean	sd	Mean	sd
Active RoM at T2	83.6	11.4	78.6	8.7	0.06	-0.2 – 10.3
Passive RoM at T2	88.7	10.4	84.0	9.9	0.07	-0.5 – 10.0
Delta active RoM T1-T2	17.5	13.4	11.9	9.8	0.07	-0.5 – 11.6
Delta passive RoM T1-T2	17.6	12.9	11.6	9.4	0.04	0.02 – 11.9
Extension active	6.3	3.9	8.1	4.8	0.11	-4.1 – 0.4
Extension passive	4.3	3.1	5.7	4.6	0.17	-3.4 – 0.6
Flexion active	89.9	9.1	86.7	8.5	0.16	-1.4 – 7.8
Flexion passive	93	8.8	89.7	9.6	0.17	-1.4 – 8.1
KSS knee score	67.6	19.6	67.3	14.9	0.94	-8.7 – 9.3
KSS function score	43	14.6	39.8	21.1	0.50	-4.7 – 11.3
WOMAC score	69.9	15.9	65.4	16.4	0.28	-3.9 – 12.9
WOMAC pain	15.8	4.7	15.3	4.1	0.60	-2.9 – 1.7
WOMAC stiffness	5.0	1.8	4.8	1.6	0.66	-0.7 – 1.1
WOMAC difficulty	49.1	11.9	45.3	12.3	0.23	-2.5 – 10.1

T2 = 17 days after surgery