Table 1.

Sulcus height (mm) in cross-sections of the femoral trochlea, as measured in threedimensional models of native and prosthetic knees (n = 42)

	0° cross-section	45° cross-section	90° cross-section
MP	18.5 (1.4)	16.8 (1.5)*	20.3 (1.8)*
Triathlon	19.2 (1.4)*	17.0 (1.5)*	-
NRG	20.1 (1.4)*	17.8 (1.5)	-
NexGen	19.3 (1.5)*	16.9 (1.5)*	-
Native knee	18.5 (1.4)*a	18.2 (1.3)*a	18.8 (1.2)*a

All parameters are reported as mean (standard deviation)

^*Significant difference (p < 0.05) when comparing against the native knee

^aNative knee taken as reference