Table II.

Comparative group characteristics of the surviving cohort.

	Kinemax	Triathlon	p-value
Implants, n	59	66	N/A
Mean follow-up, yrs (range)	8.08 (7.89 to 8.78)	8.11 (7.31 to 9.24)	N/A
Female, n (%)	34 (58%)	42 (63%)	0.58*
Mean age, yrs (SD)	74.8 (8.3)	75.4 (7.6)	0.69†
Mean baseline OKS (SD)	20.19 (7.6)	19.11 (7.3)	0.16†
Mean baseline ‘average’ pain (SD)	5.41 (1.6)	5.36 (1.6)	0.87†
Mean baseline ‘worst’ pain (SD)	8.04 (1.6)	8.52 (1.3)	0.09†
Mean baseline ROM, ° (SD)	105.38 (15.4)	105.71 (15.2)	0.93†
Mean baseline timed function, (SD)	32.72 (10.5)	32.50 (10.5)	0.82†
Mean baseline power output, % cont. limb (SD)	51.13 (37.9)	49.77 (32.9)	0.74†

^*Chi-squared test.

^†Independent samples t-test.

OKS, Oxford Knee Score; ROM, range of movement; SD, standard deviation.