Averaging rotational landmarks during total knee arthroplasty reduces component malrotation caused by femoral asymmetry

Table 3 Outliers^a and Trochlear condylar divergence (TCD)^b

	Medial (n = 59)		Lateral (n = 11)		Patellofemoral (n = 5)		Tricompartmental (n = 9)		Total (n = 84)
	n	%	n	%	n	%	n	%	n	%
SL	9	15	4	36	0	0	3	33	16	19*
PCA	10	17	2	18	0	0	2	22	14	17*
Combined PCA and SL	2	3	0	0	0	0	0	0	2	2*
Trochlear condylar divergence (TCD)	14	24	4	36	1	20	3	33	21	25

^a Outliers defined as more than 3° internally or externally rotated to SEA
^b Trochlear condylar divergence defined as difference between SL and PCL >4°
*Combined PCA and SL vs SL (p < 0.05); combined PCA and SL vs PCA (p < 0.05)

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