3. Low-friction prosthesis (metal-polymer)
3.1 Charnley's concept
From the tribological analysis of the natural synovial joint presented in the previous section, it appears that a joint prosthesis should ideally offer low friction. This principle was first put into practice by English surgeon John Charnley, who in 1962 implanted the first total hip prosthesis consisting of a one-piece femoral part (stem and head in a single piece) in stainless steel and an acetabular cup in ultra-high density polyethylene (UHMWPE)
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Friction, wear and lubrication
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Low-friction prosthesis (metal-polymer)
The low-wear prosthesis
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