Backside Wear Analysis of Retrieved Acetabular Liners with a Press-Fit Locking Mechanism in Comparison to Wear Simulation In Vitro

Table 1

Summary of in vitro tested implants.

In vitro group ( each)	Model	Polyethylene material	Femoral head	Head diameter (mm)	Shell diameter (mm)
	Plasmacup DC symmetrical	VitE	CoCr	36	52
	Plasmacup DC symmetrical	VitE	Ceramic	36	52
	Plasmacup DC symmetrical	XPE	CoCr	36	52
	Plasmafit Poly symmetrical	VitE	Ceramic	36	50
	Plasmafit Poly symmetrical	STD	CoCr	32	46
	Plasmafit Poly symmetrical	STD	Ceramic	32	46