title: Mechanical evaluation of unipolar hip spacer constructs.
abstract: The strengths of 3 hip spacer constructs--Steinmann pins, a short intramedullary nail (both cement-incorporated), and a Charnley prosthesis--were determined and compared with the strength of a commercially available hip spacer. The hip prosthesis construct was more than twice as strong as the other 2 constructs and was equivalent in strength to the commercial spacer. For spacer applications in which limited weight-bearing is anticipated, the hip prosthesis construct appears more efficacious, but its pros and cons should be compared with those of the commercial product.
authors.affiliation: Department of Orthopaedic Surgery, New York University/Hospital for Joint Diseases, New York, NY 10003, USA. fkummer@yahoo.com
authors.forename: Frederick J
authors.initials: FJ
authors.lastname: Kummer
authors.forename: Eric
authors.initials: E
authors.lastname: Strauss
authors.forename: Kevin
authors.initials: K
authors.lastname: Wright
authors.forename: Erik N
authors.initials: EN
authors.lastname: Kubiak
authors.forename: Paul E
authors.initials: PE
authors.lastname: Di Cesare
mesh_terms: D019644:Arthroplasty, Replacement, Hip / Q000295:instrumentation*; D001843:Bone Cements; D001858:Bone Nails; D006622:Hip Prosthesis; D006801:Humans; D011474:Prosthesis Design; D013314:Stress, Mechanical
chemical_list: D001843:Bone Cements