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

Table 3

Average score per wear mode of all backside sections from in vitro and retrieved liners (maximum possible score per wear mode = 3).

Wear mode	In vitro	Retrievals
Pitting	0.00 (±1.04)	0.03 (±0.17)
Scratching	1.62 (±1.62)	1.36 (±0.83)
Burnishing	0.23 (±0.47)	0.13 (±0.41)
Abrasion	0.67 (±0.95)	0.32 (±0.65)
Embedded particles	0.07 (±0.24)	0.70 (±0.82)
Deformation	0.01 (±0.11)	0.03 (±0.17)
Delamination	0.00 (±0.00)	0.00 (±0.00)