Table 4.

Subgroup analysis on clinical outcomes between outliers and norms

	MA norms (within ±3°)	MA outliers	P value
KSKS	88.9 ± 12.7	88.0 ± 14.3	0.79
KSFS	84.7 ± 15.5	83.9 ± 12.5	0.53
ROM	109.1 ± 15.7	111.1 ± 17.2	0.45
	FCA norms (90 ± 3°)	FCA outliers	P value
KSKS	87.7 ± 14.3	91.3 ± 8.5	0.34
KSFS	83.9 ± 15.9	86.1 ± 10.8	0.81
ROM	109.0 ± 16.5	111.4 ± 14.7	0.57
	FSA norms (87 ± 3°)	FSA outliers	P value
KSKS	87.9 ± 13.9	89.6 ± 11.9	0.51
KSFS	82.8 ± 16.1	86.9 ± 12.3	0.24
ROM	109.2 ± 15.6	110.2 ± 16.8	0.82
	TCA norms (90 ± 3°)	TCA outliers	P value
KSKS	89.1 ± 12.8	83.3 ± 16.4	0.19
KSFS	84.7 ± 14.7	81.9 ± 15.1	0.56
ROM	110.0 ± 15.8	105.6 ± 19.0	0.55
	TSA norms (83 ± 3°)	TSA outliers	P value
KSKS	89.0 ± 11.6	87.9 ± 15.7	0.42
KSFS	84.0 ± 15.5	85.4 ± 13.2	0.80
ROM	109.0 ± 16.0	110.9 ± 16.4	0.58

Abbreviations: KSKS Knee society knee scores, KSFS Knee society function scores, ROM Range of motion, MA Mechanical axis, FCA Femoral coronal angle, TCA Tibial coronal angle, FSA Femoral sagittal angle, TSA Tibial sagittal angle