Biomechanics
A 45-year-old man with a distal femur fracture is being treated with plate fixation. The surgeon is selecting between stainless steel and titanium implants. The patient is concerned about long-term outcomes and asks about the properties of different implant materials. He also asks why some plates fail and what "stress shielding" means. Regarding biomechanics and implant materials:
Mark each as TRUE or FALSE
Key material properties include elastic modulus (stiffness - ratio of stress to strain in elastic re...
Titanium alloys (Ti-6Al-4V) are biocompatible with excellent corrosion resistance due to passive oxi...
Titanium has higher elastic modulus than stainless steel; stainless steel is more biocompatible than...
Stress shielding occurs when a stiff implant bears load instead of bone, leading to bone resorption ...
Implant failure modes include fatigue failure (cyclic loading, typically at stress concentrations), ...
Answer the questions to see explanations
Click T (True) or F (False) for each option