Table 4.

Summary table of the findings about the relationship between external knee joint moments and internal mKCFs and tKCFs.

			KAM	KFM	KEM	KAM + KFM
		First peak	Moderate	-	-	-
	mKCF	Second peak	Strong	-	-	-
Patients after TKR		Maximal	-	-	-	-
		First peak	-	-	-	-
	tKCF	Second peak	-	-	-	-
		Maximal	-	-	-	-
		First peak	Strong	-	-	Strong
	mKCF	Second peak	Moderate	-	-	Moderate
Patients with mKOA		Maximal	-	-	-	-
		First peak	Strong	Strong	-	Strong
	tKCF	Second peak	Low	Moderate	-	Moderate
		maximal	-	-	-	-
		first peak	-	x	-	Moderate
	mKCF	Second peak	-	-	-	-
Patients after ACLR		Maximal	Strong	-	-	Strong
		First peak	-	-	-	-
	tKCF	Second peak	-	-	-	-
		Maximal	-	-	-	-
Patients after APM	mKCF	First peak	Moderate	Low	-	-
		First peak	Strong	Low	x	-
	mKCF	Second peak	Strong	x	Moderate	-
Healthy controls		Maximal	Moderate	Low	Moderate	Strong
		First peak	Strong	Low	-	Strong
	tKCF	Second peak	x	Moderate	-	Strong
		Maximal	Low	-	-	-

The predictability of the internal joint contact forces is classified in four different stages: -: relationship was not investigated; x: no predictability (in red); low: low predictability (in orange); moderate: moderate predictability (in yellow); strong: strong predictability (in green). The stages are related to the investigated R²-values which were interpreted as low below 0.25, between 0.25 and 0.49 as moderate and above 0.49 as high Hinkle et al. (1988); Kotrlik and Williams (2003).

KAM, knee adduction moment; KFM, knee flexion moment; KEM, knee extension moment; mKCF, medial knee joint contact force; tKCF, total knee joint contact force; TKR, total knee replacement; mKOA, medial knee osteoarthritis; ACLR, anterior cruciate ligament reconstruction; APM, arthroscopic partial meniscectomy.