Implant Science
A 45-year-old man undergoes intramedullary nailing for a tibial shaft fracture. The surgeon is discussing implant options with residents, noting the different properties of titanium versus stainless steel nails. Post-operatively, the patient asks whether his implant will set off metal detectors at airports. Regarding orthopaedic biomaterials:
Mark each as TRUE or FALSE
Stainless steel (316L) has high strength and lower cost but higher modulus of elasticity (approximat...
Titanium alloys (Ti-6Al-4V most common) have lower modulus (approximately 110 GPa) closer to bone (a...
Titanium has a higher modulus of elasticity than stainless steel; cobalt chrome has the lowest modul...
Cobalt-chrome alloys have highest strength and fatigue resistance, making them ideal for articulatin...
Stress shielding occurs when rigid implants bear load instead of bone, leading to bone resorption (W...
Answer the questions to see explanations
Click T (True) or F (False) for each option