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Figure 4 | BMC Musculoskeletal Disorders

Figure 4

From: Damages of the tibial post in constrained total knee prostheses in the early postoperative course – a scanning electron microscopic study of polyethylene inlays

Figure 4

Scanning electron micrographs of loaded constraint UHMWPE prosthesis. Different magnifications of the UHMWPE prosthesis showing cutting traces of the milling treatment, clefts and some micro-fissures (which occur as fine black features, see arrows), and probably local material failures: (a) Location 1, magnification 900×, bar at the bottom correspond to 5 μm. (b) Location 1, magnification 1900×, bar at the bottom correspond to 5 μm. (c) Location 7, magnification 1900×, bar at the bottom correspond to 5 μm. (d) Location 9, magnification 900×, bar at the bottom correspond to 5 μm

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