Mechanical evaluation of unipolar hip spacer constructs.
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.
Kummer
Frederick J
FJ
Department of Orthopaedic Surgery, New York University/Hospital for Joint Diseases, New York, NY 10003, USA. fkummer@yahoo.com
Strauss
Eric
E
Wright
Kevin
K
Kubiak
Erik N
EN
Di Cesare
Paul E
PE
D019644:Arthroplasty, Replacement, Hip / Q000295:instrumentation*; D001843:Bone Cements; D001858:Bone Nails; D006622:Hip Prosthesis; D006801:Humans; D011474:Prosthesis Design; D013314:Stress, Mechanical
D001843:Bone Cements