title: Trunion fracture of a fully porous-coated femoral stem. Case report.
abstract: 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) . There have been several case reports 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.
authors.affiliation: Section of Orthopaedic Surgery, Department of Surgery, The University of Chicago Medical Center, IL 60637, USA.
authors.forename: Torey P
authors.initials: TP
authors.lastname: Botti
authors.forename: Justin
authors.initials: J
authors.lastname: Gent
authors.forename: John M
authors.initials: JM
authors.lastname: Martell
authors.forename: David W
authors.initials: DW
authors.lastname: Manning
mesh_terms: D000368:Aged; D006622:Hip Prosthesis; D006801:Humans; D008297:Male; D011474:Prosthesis Design; D011475:Prosthesis Failure