The Effect of Patient-Specific Instrumentation Incorporating an Extramedullary Tibial Guide on Operative Efficiency for Total Knee Arthroplasty

Table 1

Patient demographics.

	Age	Gender; (female/male)	BMI	Mechanical; tibiofemoral angle
Group 1 ()		46/2		Varus
Group 2 ()		62/6		Varus
Group 3 ()		47/3		Varus
value (group 1 : group 3)	0.38	N/A	0.91	0.80
value (group 2 : group 3)	0.11	N/A	0.75	0.85

(N/A, not available; BMI, body mass index).