Table 2.

The lateral tilt, medial tilt and sulcus angles of the femoral trochlea calculated based on 0° cross-sections of three-dimensional models of native and prosthetic knees (n = 28)

0° cross-section
	Lateral tilt angle (°)	Medial tilt angle (°)	Sulcus angle (°)
MP	15.5	9.8	172.6
Triathlon	13.3	11.4	173.2
NRG	13.9	12.1	173.5
NexGen	12.5	13.2	172.3
Native knee	16.4 (2.9)	4.5 (5.3)	159.1 (6.7)

All parameters are reported as mean or mean (standard deviation)

Significant differences (p < 0.05) between the native and prosthetic knees were noted for all angles evaluated