Broken Stem of Femoral Head Component of Total Hip Prosthesis Made From Cast Cobalt-Base Alloy
The bone cement failed at the distal end of the prosthesis stem of femoral head prosthesis six months after implantation. A small indentation on the lateral contour of the stem was visible where the stem had broken. The degree of loosening (gap between the lateral stem contour and the bone or cement) and implant loading was revealed by the dislocation of fragments of the prosthesis. Secondary cracks that had originated at the lateral aspect of the stem were revealed by metallographic examination of a section parallel to the stem surface and perpendicular to the fracture surface of the distal...
Broken Stem of Femoral Head Component of Total Hip Prosthesis Made From Cast Cobalt-Base Alloy, ASM Failure Analysis Case Histories: Medical and Biomedical Devices, ASM International, 2019, https://doi.org/10.31399/asm.fach.med.c0048423
Download citation file: