Polyethylene liner cementation into fixed acetabular shells.
A patient presenting with a secure cementless acetabular component and with femoral head penetration through the polyethylene liner is a common clinical problem. Cementing a new liner into the fixed shell is one option. We evaluated this option in a clinical series of 17 cases and with a preliminary mechanical study. In the 1 clinical failure (5.9%), the failure occurred at the cement-liner interface. The most important variable in optimizing the mechanical strength of the cemented liner construct was adequate preparation of the cement-liner interface. This approach to treating the patient with a fixed cementless shell and a worn polyethylene liner can provide a durable construct with minimal morbidity.
Haft
Geoffrey F
GF
Department of Orthopaedics, University of Iowa Health Care, Iowa City, Iowa 52242, USA.
Heiner
Anneliese D
AD
Callaghan
John J
JJ
Dorr
Lawrence D
LD
Wan
Zhinian
Z
Long
William
W
Longjohn
Donald B
DB
Brown
Thomas D
TD
D000368:Aged; D019644:Arthroplasty, Replacement, Hip / Q000379:methods*; D002484:Cementation; D006622:Hip Prosthesis; D006801:Humans; D020959:Polyethylene; D017755:Prosthesis Fitting; D012086:Reoperation; D016896:Treatment Outcome
D020959:Polyethylene