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

Figure 7

Photographs with microscope from in vitro wear tested liners. (a) P-Cup group, Section  2, machining lines clearly visible with no wear marks; (b) P-Cup group, Section  3, screw holes indentations marks and machining lines still visible; (c) P-Cup group, Section  4, small scratching lines; (d) P-Cup, Section  5, scratching lines and slight abrasion; screw hole is visible; (e) P-Cup, Section  6, small scratching lines; (f) P-Cup, Section  7, small scratching lines.

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