CC BY 4.0 · VCOT Open 2020; 03(02): e129-e133
DOI: 10.1055/s-0040-1716851
Case Report

Total Hip Replacement: Exchange of a Loose Perforated Press-Fit Cup with a Porous-Coated Press-Fit Cup in a Dog

Stephanie M.M. Colthurst
1  Southpaws Specialty Surgery for Animals, Moorabbin, Victoria, Australia
,
James O. Simcock
1  Southpaws Specialty Surgery for Animals, Moorabbin, Victoria, Australia
,
Ricky G. Cashmore
1  Southpaws Specialty Surgery for Animals, Moorabbin, Victoria, Australia
› Author Affiliations

Abstract

Objective The aim of this study was to report the successful revision of a loose perforated press-fit cup by exchange with a porous-coated press-fit cup while maintaining the original locking stem and head–neck unit.

Methods Cup revision was performed in a dog with a loose acetabular cup that had undergone total hip replacement with a perforated press-fit cup and locking stem 29 months previously. The original locking stem was well integrated. A single session cup exchange was performed by implantation of a 28-mm porous-coated press-fit cup with 16 mm internal diameter to allow the original locking stem and head–neck unit to be preserved.

Results Revision total hip arthroplasty by cup exchange resulted in excellent functional outcome with long-term follow-up 18 months postoperatively. There were no intraoperative or postoperative complications.

Conclusion A loose perforated press-fit cup was successfully revised with a porous press-fit cup while allowing preservation of the initial locking stem and head–neck unit.

Authors' Contributions

R.G.C. and J.O.S. planned and performed the described revision surgery. S.M.M.C. prepared the manuscript with support from R.G.C. and J.O.S.




Publication History

Received: 05 November 2019

Accepted: 14 August 2020

Publication Date:
29 September 2020 (online)

© 2020. The Author(s). This is an open access article published by Thieme under the terms of the Creative Commons Attribution License, permitting unrestricted use, distribution, and reproduction so long as the original work is properly cited. (https://creativecommons.org/licenses/by/4.0/).

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