Table 4.

Each rotation measurement was carried out and recorded 3 times

A	Primary ACL rupture				ACL rerupture
	1st run	2nd run	3rd run	Mean	1st run	2nd run	3rd run	Mean
∆ IRO	0	− 5	5	0	10	5	15	10
	0	0	− 5	− 1.7	15	15	20	16.7
	0	0	5	1.7	0	− 5	5	0
	0	5	− 5	0	5	0	10	5
	0	5	0	1.7	10	15	0	8.3
	5	10	5	6.7	5	10	0	5
	0	5	5	3.3	15	10	20	15
	0	0	0	0	25	30	20	25
	5	10	0	5	0	0	5	1.7
	0	5	0	1.7	0	− 5	5	0
	0	0	5	1.7	10	15	5	10
	10	10	15	11.7	0	5	0	1.7
	0	0	5	1.7	10	10	15	11.7
	10	10	5	8.3	10	15	10	11.7
	0	0	0	0	0	0	0	0
	10	15	5	10	0	5	− 5	0
	0	0	0	0	10	10	5	8.3
	15	15	20	16.7	35	30	40	35
	5	5	0	3.3	10	5	5	6.7
	0	0	5	1.7	0	− 5	0	− 1.7
	5	0	5	3.3	15	10	10	11.7
	0	0	0	0	5	10	10	8.3
	0	0	5	1.7	10	10	10	10
	10	5	10	8.3
Mean (± SD)	3.1 (± 4.6)	4.0 (± 5.3)	3.8 (± 5.6)	3.6 (± 4.5)	8.7 (± 8.7)	8.5 (± 9.3)	8.9 (± 9.8)	8.7 (± 8.6)

The mean of the side-to-side difference and the standard deviation were included in the further calculation

A) IRO internal rotation

B) ERO external rotation