Table 1.

Conformity of conventional polyethylene (PE) and mildly constrained PE.

		CC-PE	MC-PE
Coronal	Medial	0.97	0.79
	Lateral	0.97	0.94
Sagittal	Medial (anterior)	0.97	0.94
	Lateral (anterior)	0.97	0.94
	Medial (posterior)	0.77	0.43
	Lateral (posterior)	∞	∞

Conformity = (radius of the femoral component)/(radius of the polyethylene). ∞Due to the flat nature of the lateral posterior portion, the value was infinite.