title: Modular tapered titanium stems in revision arthroplasty of the hip: The Risk and Causes of Stem Fracture.
abstract: Tapered fluted titanium stems are increasingly used for femoral revision arthroplasty. They are available in modular and non-modular forms. Modularity has advantages when the bone loss is severe, the proximal femur is mis shapen or the surgeon is unfamiliar with the implant, but it introduces the risk of fracture of the stem at the junction between it and the proximal body segment. For that reason, and while awaiting intermediate-term results of more recently introduced designs of this junction, non-modularity has attracted attention, at least for straightforward revision cases. We review the risks and causes of fracture of tapered titanium modular revision stems and present an argument in favour of the more selective use of modular designs.
authors.affiliation: University of British Columbia, Vancouver General Hospital, Vancouver, British Columbia, Canada.
authors.forename: S
authors.initials: S
authors.lastname: Konan
authors.affiliation: University of British Columbia, Vancouver General Hospital, Vancouver, British Columbia, Canada.
authors.forename: D S
authors.initials: DS
authors.lastname: Garbuz
authors.affiliation: University of British Columbia, Vancouver General Hospital, Vancouver, British Columbia, Canada.
authors.forename: B A
authors.initials: BA
authors.lastname: Masri
authors.affiliation: University of British Columbia, Vancouver General Hospital, Vancouver, British Columbia, Canada.
authors.forename: C P
authors.initials: CP
authors.lastname: Duncan
mesh_terms: D019644:Arthroplasty, Replacement, Hip; D005269:Femur; D006622:Hip Prosthesis; D006801:Humans; D011474:Prosthesis Design; D011475:Prosthesis Failure / Q000209:etiology*; D012086:Reoperation; D012307:Risk Factors; D014025:Titanium
chemical_list: D014025:Titanium
keywords: Non nodular revision stems; revision stem fracture; taper failure