Table 3.

Number of total knee replacements that achieved greater than 125° flexion for the two different implants

	Optetrak®	Logic®	p value
Pre-op mean flexion	111°	113°	0.3815	Independent t-test
N = 125–129°	21	12	0.0806	Chi-square test
N = 130–139°	18	33	0.0167	Chi-square test
N ≥ 140°	1	8	0.0349	Fisher’s exact test
Total N ≥ 125°	40	53	0.0750	Chi-square test