Table 1.

Comparison of preoperative demographics and clinical status between the two groups

Demographic	Patient-specific instrument group	Conventional group	p value
Age (years)*	70 ± 7.2	70 ± 5.1	0.891
Gender (F/M)	39 / 3	43 / 5	0.719
BMI (kg/m2)*	27 ± 4.2	27 ± 2.7	0.332
Laterality (right/left)	18 / 24	29 / 19	0.138
Mechanical tibiofemoral angle (degrees)*	Varus 9.2 ± 4.1	Varus 8.6 ± 5.2	0.573
ROM (degrees)*	9–131 ± 13.4	8–134 ± 13.8	0.113
Patella resurfacing (resurface/preserve)	31/11	26/22	0.079

* Presented as mean and standard deviation.