Human knee laxity in ACL-deficient and physiological contralateral joints: intra-operative measurements using a navigation system

Table 2 Mean values of APL, expressed as percentage of AP-tib, reported for the two tests, and for the medial and lateral compartments of both knees.

			CHK		ADK		R ² _CHK→ADK; *; p* _CHK→ADK
			Mean ± SD	R ² _med→lat; *; p* _med→lat	Mean ± SD	R ² _med→lat; *; p* _med→lat
APL [' AP-tib]	AP drawer
		medial	8.7 ± 3.7	R² *= 0.495; p < 0.001*	13.4 ± 4.0	R² *= 0.635; p < 0.001*	R² *= 0.273; p < 0.001*
		lateral	20.6 ± 7.8	R² *= 0.495; p < 0.001*	30.3 ± 8.3	R² *= 0.635; p < 0.001*	R² *= 0.275; p < 0.001*
	Lachman
		medial	12.4 ± 8.3	R² *= 0.395; p < 0.001*	25.6 ± 7.4	R² *= 0.458; p < 0.001*	R² *= 0.423; p < 0.001*
		lateral	25.7 ± 8.4	R² *= 0.395; p < 0.001*	43.2 ± 11.6	R² *= 0.458; p < 0.001*	R² *= 0.439; p < 0.001*
	R ² _{AP drawer→Lachman} *; p* _{AP drawer→Lachman}
		*medial*	R² *= 0.100; p = 0.025*		R² *= 0.521; p < 0.001*
		*lateral*	R² *= 0.100; p = 0.015*		R² *= 0.298; p < 0.001*

For all possible couples of these values, R² and p are also reported, in Italic.

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