Biomaterials
A resident asks about the different metals used for orthopaedic implants. She notes that plates are often stainless steel while hip stems may be titanium or cobalt-chrome. The attending explains the properties of different biomaterials and why specific materials are chosen for different applications. Regarding biomaterials in orthopaedic surgery:
Mark each as TRUE or FALSE
Stainless steel (316L) is an iron-chromium-nickel alloy with chromium (17-20%) providing corrosion r...
Titanium alloys (commonly Ti-6Al-4V) have a lower modulus of elasticity (110 GPa) closer to bone (15...
Titanium has a higher modulus than stainless steel causing more stress shielding; cobalt-chrome has ...
Cobalt-chrome alloys (CoCrMo) have the highest hardness and wear resistance of orthpaedic metals, ma...
Ceramics (alumina, zirconia) have excellent wear properties and hardness, produce minimal wear debri...
Answer the questions to see explanations
Click T (True) or F (False) for each option