Table 2.

Radiographic outliers of the three cohorts

Radiographic measurement	FTA Outliers		HKA Outliers		ZMA Outliers
Group 1 (n = 50)	Varus	Valgus	Varus	Valgus	Zone 2	Zone 3	Zone 4
Number of patients	14	0	5	3	9	11	0
Group 2 (n = 50)	Varus	Valgus	Varus	Valgus	Zone 2	Zone 3	Zone 4
Number of patients	10	6	3	6	6	10	0
Group 3 (n = 50)	Varus	Valgus	Varus	Valgus	Zone 2	Zone 3	Zone 4
Number of patients	3	11	2	20	3	24	5

FTA = femorotibial angle; HKA = hip-knee-ankle angle; ZMA = zone of mechanical axis.