Research Article

Analysis of Carbon Fiber Reinforced PEEK Hinge Mechanism Articulation Components in a Rotating Hinge Knee Design: A Comparison of In Vitro and Retrieval Findings

Figure 4

Hinge ring side of CFR-PEEK femoral flanges with SEM images. (a) Retrieved flanges adjacent to CoCrMo and (b) in vitro tested flanges adjacent to ZrN. Holes due to fiber pull-out (yellow arrows) and machining marks (green arrows) are shown.