10/10/13 1 Implants and prosthesis Example of manmade biomaterials: • UHMWPE = UltraHighMolecularWeight polyethylene • Metals: e.g. stainless steel and <tanium • PMMA = polyethylene methacrylate (bone cement) • Polydimethylene silixane = silicon rubber • Dacron (blood vessels) • Polytetrafluoreten = Teflon or GorTex (heart valves, ligaments, ossicles for the ear) • Ceramics and glasses
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Implants%and%prosthesis% · 2013-10-10 · Greater bending Higher compressive loads Extramedullary Intermedullary 10, 30 The safety factor for a total hip replacement is to be Biomechanics,
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10/10/13
1
Implants and prosthesis
Example of man-‐made biomaterials: • UHMWPE = Ultra-‐High-‐Molecular-‐Weight polyethylene • Metals: e.g. stainless steel and <tanium • PMMA = polyethylene methacrylate (bone cement)