Table 4.

Criteria for release to sports activities

				Time Postoperatively, mo		Failure Rate, %
Study	n	Muscle Strength	Hop Test		Subjective Parameters	ACLR	Contralateral ACL	Either Knee
Shelbourne et al86,89	624	85% quadriceps strength for team competition				9	7	16
Larson et al53	30		90% LSI single-leg hop and triple hop	6-8	“restoration of jump landing and pivoting mechanics”	17	17	34
Morgan et al60	242			6-9	“according to an objective assessment of whether the rehabilitation goals had been met”	17	20	37
Kocher et al50	59			6		3	0	3
Takazawa et al95	52			6		21	9	29
Goddard et al34	32			12		6	0	6

ACL, anterior cruciate ligament; ACLR, ACL reconstruction; LSI, limb symmetry index.