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Vet Comp Orthop Traumatol 2003; 16(02): 99-104
DOI: 10.1055/s-0038-1632758
Clinical Communication
Schattauer GmbH

Acetabular cup displacement after polyethylenecement interface failure: A complication of total hip replacement in seven dogs

S. Hunter
,
J. Dyce
,
L. Butkus
,
M. L. Olmstead
1   Department of Oregon Veterinary Referral Associates, Springfield, OR., U.S.A
› InstitutsangabenThis work was not supported by any grant. The authors thank Andrew Kohm for statistical analysis, and Tim Vojt and Marc Hardman for figures.
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Publikationsverlauf

Received: 17. September 2002

Accepted: 09. November 2002

Publikationsdatum:
22. Februar 2018 (online)

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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.

Keywords

Acetabular cup displacement - total hip replacement
 

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