Demographic data.

Table 1: Demographic data.

		Group 1 (HF)		Group 2 (PFC)		p (p < 0.05)
		Mean	SD	Mean	SD	p (p < 0.05)
Prosthesis	Model	Hi-Flex PFC-RPF		PFC-RP
Patients	n	37	-	33	-
Gender	Males	16	-	10	-	0.338
Gender	Females	21	-	23	-	0.338
Age at surgery	Years	68.7	9.8	68.8	9.6	0.482
ASA	Score	2.2	0.5	2.3	0.6	0.414
Height	cm	163.6	8.3	164.4	8.8	0.350
Body Weight	Kg	80.7	18.2	87.9	18.3	0.053
BMI	Kg/m²	30.0	5.7	32.6	6.8	0.045^*

SD: Standard deviation; ^*Significant p-value < 0.05; HF: High flex.