Breakage of cementless press-fit femoral stems following total hip arthroplasty in dogs: 14 cases (2013-2023).

IF 1.3 2区农林科学 Q2 VETERINARY SCIENCES

Veterinary Surgery Pub Date : 2025-02-19 DOI:10.1111/vsu.14227

Jose L Carvajal, William M Karlin, Denis J Marcellin-Little, Michael P Kowaleski, Valentine D Verpaalen, Laurent P Guiot, Po-Yen Chou, Nicolas P Barthelemy, Peter J Lotsikas, Stanley E Kim

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引用次数: 0

Abstract

Objective: To report breakage of press-fit cementless femoral stems in dogs after total hip arthroplasty (THA).

Study design: Retrospective case series.

Animals: Thirteen dogs (14 stems).

Methods: Medical records were obtained for client-owned dogs that underwent THA between 2013 and 2023. Demographic data, implant type and size, time to stem breakage, and radiographic assessment of implant size were recorded. Implant size was compared with the manufacturers' guidelines based on body weight. Treatment-associated complications and overall outcomes were also recorded.

Results: Fourteen broken stems were reported in 13 dogs. Thirteen were size #5, #6, or #7 Biologic Fixation (BFX) lateral bolt stems and one was a size #5 standard BFX stem. A +9 head was used in 5 of 11 cases with 17 mm diameter heads. The median time from THA to stem breakage was 522 days (interquartile range, 330-905 days). Ten of the 14 stems were radiographically undersized. The weights of 10 of 13 dogs were at, or exceeded, weight-limit guidelines. Eleven stems were revised with a new stem, two were explanted, and one was partially explanted. Major complications of revision included stem rebreakage, periprosthetic fracture, and pin and tension band-fixation failure. Full function was achieved in 9 of 10 dogs with revised stems based on owner and surgeon assessment.

Conclusion: Most of the stems that broke were BFX lateral bolt stems and were undersized both radiographically and in comparison with weight-limit guidelines. Revision can be successful, although the complication rate is high.

Clinical significance: The use of small, undersized BFX lateral bolt stems should be avoided.

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来源期刊

Veterinary Surgery 农林科学-兽医学

CiteScore

3.40

自引率

22.20%

发文量

162

审稿时长

8-16 weeks

期刊介绍： Veterinary Surgery, the official publication of the American College of Veterinary Surgeons and European College of Veterinary Surgeons, is a source of up-to-date coverage of surgical and anesthetic management of animals, addressing significant problems in veterinary surgery with relevant case histories and observations. It contains original, peer-reviewed articles that cover developments in veterinary surgery, and presents the most current review of the field, with timely articles on surgical techniques, diagnostic aims, care of infections, and advances in knowledge of metabolism as it affects the surgical patient. The journal places new developments in perspective, encompassing new concepts and peer commentary to help better understand and evaluate the surgical patient.