Table 2.

Clinical examinations.

Group	Examination dates
		t 0		t 1		t 2
		ST	STK	ST	STK	ST	STK
KT-1000-Lachman (side-to-side)	>5 mm	5	6	2	0	0	0
	2–5 mm	9	9	13	6**	12	4*
	<2 mm	1	0	0	9**	2	11**
Deficiency of extension	>10°	1	3	0	0	0	0
	5–10°	8	4	5	0*	0	0
	0–5°	4	7	3	1	5	0*
	0°	2	1	7	14*	10	15*
Maximal flexion	<90°	2	3	1	0	0	0
	90–120°	10	7	6	3*	0	0
	>120°	1	4	6	3*	6	2*
	Free	2	1	2	9**	9	13*
Maximal muscle force	1–5	2.7	2.7	3.1	4.4**	4.1	4.8*

*P < 0.05**P < 0.01 (chi-square-test).