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Trunion Fracture of a Fully Porous-Coated Femoral Stem

2005; Elsevier BV; Volume: 20; Issue: 7 Linguagem: Inglês

10.1016/j.arth.2005.06.013

1532-8406

Torey P. Botti, Justin Gent, John M. Martell, David W. Manning,

Orthopedic Infections and Treatments

Femoral component fracture is a documented but an uncommon complication of total hip arthroplasty. A retrospective survey conducted by the American Association of Hip and Knee Surgeons estimated the prevalence of femoral component fractures at 0.27% (172 of 64483 implants over a 5-year period ending in 1993) [ 1 Heck D.A. Partridge C.M. Lanzer W.L. et al. Prosthetic component failures in hip arthroplasty surgery. J Arthroplasty. 1995; 10: 575 Abstract Full Text PDF PubMed Scopus (121) Google Scholar , 2 Lee E.W. Kim H.T. Early fatigue failures of cemented, forged, cobalt-chromium femoral stems at the neck-shoulder junction: a case report. J Arthroplasty. 2001; 16: 236 Abstract Full Text Full Text PDF PubMed Scopus (64) Google Scholar ]. There have been several case reports [ 2 Lee E.W. Kim H.T. Early fatigue failures of cemented, forged, cobalt-chromium femoral stems at the neck-shoulder junction: a case report. J Arthroplasty. 2001; 16: 236 Abstract Full Text Full Text PDF PubMed Scopus (64) Google Scholar , 3 Gilbert J.L. Buckley C.A. Jacobs J.J. et al. Intergranular corrosion-fatigue failure of cobalt-alloy femoral stems. A failure analysis of two implants. J Bone Joint Surg. 1994; 76: 110 PubMed Google Scholar ] of fatigue fractures of the prosthetic neck distal to the Morse taper in modular implants with a cobalt alloy head and a cobalt alloy stem. Here, we present a case report of stem fracture within the Morse taper of a cobalt alloy stem coupled with a cobalt alloy head.