Orthopaedic Implants — Materials & Corrosion
Common alloys: 316L stainless, cobalt‑chrome, titanium (Ti‑6Al‑4V). Corrosion mechanisms: fretting at modular junctions, crevice under plates, galvanic with dissimilar metals. Clinical sequelae: metal ion release, ALVAL, osteolysis, trunnionosis in THA. Prevention: material pairing, surface finish, avoiding fluid‑filled crevices, firm taper assembly.
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10Which of the following alloys is known for its superior corrosion resistance in orthopedic implants?
mcqWhat is a major clinical consequence of fretting corrosion at modular junctions of orthopedic implants?
mcqWhich material has a Young's modulus closest to that of cortical bone?
mcqWhat mechanism is primarily responsible for galvanic corrosion in orthopedic implants?
mcqWhat is the primary concern with the use of 316L Stainless Steel in implant applications?
mcqALVAL, or Aseptic Lymphocytic Vasculitis-Associated Lesion, is associated with which type of reaction to ortho...
mcqWhich method can help prevent corrosion at modular junctions of orthopedic implants?
mcqWhat is a consequence of stress shielding in orthopedic implants?
mcqWhich of the following is a characteristic of titanium alloys used in orthopedic implants?
mcqWhat is 'trunnionosis' in the context of total hip arthroplasty?