Healing of the Acutely Injured Anterior Cruciate Ligament: Functional Treatment with the ACL-Jack, a Dynamic Posterior Drawer Brace

Table 3

Clinical outcome and side-to-side ACL stability (Rolimeter) of the ACL-Jack (successful), functional treatment (successful), and primary ACL reconstruction group.

	ACL-Jack		Functional treatment		Primary ACL reconstruction		intergroup
Tegner preinjury	6.6 ± 2 (4–10)	<0.00001	5.1 ± 1.4 (2–6)	<0.00001	8.6 ± 1.3 (5–10)	0.00026	0.00002
Tegner 12 months	5.6 ± 2.1 (3–10)		3.4 ± 0.9 (2–5)		7.7 ± 1.8 (4–10)		<0.000001
Tegner 24 months	5.9 ± 2 (3–10)		3.5 ± 1 (2–5)		7.9 ± 1.7 (4–10)		<0.000001
Lysholm preinjury	99.7 ± 1.2 (95–100)	<0.00001	100 ± 0 (100-100)	<0.00001	98.6 ± 2.4 (94–100)	<0.00001	0.047
Lysholm 12 months	92.8 ± 8.6 (67–100)		93.7 ± 6.3 (79–100)		88.4 ± 6.9 (79–100)		0.055
Lysholm 24 months	93.3 ± 8.3 (67–100)		92.7 ± 7.4 (67–100)		89.1 ± 7.7 (74–100)		0.034
IKDC preinjury	96.5 ± 5.2 (72–100)	<0.00001	97 ± 3.5 (91–100)	<0.00001	98.4 ± 3 (90–100)	<0.00001	0.17
IKDC 12 months	88.7 ± 9.4 (58–100)		85.2 ± 9.1 (66–100)		88.1 ± 8.4 (72–100)		0.72
IKDC 24 months	90 ± 8.7 (69–100)		86.4 ± 11 (66–100)		88.3 ± 8.6 (74–100)		0.37
Diff injury (mm)	4.3 ± 2 (3–11)	<0.00001	4.5 ± 2.5 (2–10)	0.71	4.6 ± 0.8 (4–6)	<0.0001	0.32
Diff 6 months (mm)	0.9 ± 1.8 (0–4.5)		—		—		—
Diff 12 months (mm)	1 ± 1.4 (0–4)		—		—		—
Diff 24 months (mm)	1.1 ± 2 (0–5)		4.8 ± 2.4 (2–8)		0.9 ± 1.1 (0–3)		0.000002