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DOI: 10.1055/s-0038-1632758
Acetabular cup displacement after polyethylenecement interface failure: A complication of total hip replacement in seven dogs
This work was not supported by any grant. The authors thank Andrew Kohm for statistical analysis, and Tim Vojt and Marc Hardman for figures.
Publikationsverlauf
Received:
17. September 2002
Accepted:
09. November 2002
Publikationsdatum:
22. Februar 2018 (online)
Summary
Acetabular cup displacement (ACD) was identified as a complication of cemented modular total hip replacement in seven dogs. ACD is characterized by mechanical failure of the polyethylene-cement interface and subsequent cup migration, and is a clinical entity distinct from classical aseptic loosening. ACD is a sequela of extrusion of the cup and lateralization of the prosthetic load-bearing axis. The acetabular cup displacement ratio (ACDR) has a statistically significant effect on whether ACD develops (P <0.0005). If ACD should occur, acetabular revision arthroplasty generally results in a good clinical outcome, if not complicated by infection.
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