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CC BY 4.0 · VCOT Open 2025; 08(01): e21-e27
DOI: 10.1055/a-2513-9753
Case Report

Application of 3D-Printed Patient-Specific Guides for Femoral Bone Preparation in Cementless Total Hip Arthroplasty in a Dog

Julia H. Charochak 
1   Arizona Canine Orthopedics and Sports Medicine, Scottsdale, Arizona, United States
,
Brian Petrovsky 
1   Arizona Canine Orthopedics and Sports Medicine, Scottsdale, Arizona, United States
,
Ross Lirtzman
1   Arizona Canine Orthopedics and Sports Medicine, Scottsdale, Arizona, United States
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Abstract

This case report presents the first successful Biomedtrix BFX™ total hip replacement in a dog with Legg–Calve–Perthes disease utilizing patient-specific 3D-printed guides to aid in femoral reaming. An 11-month-old, male, neutered goldendoodle weighing 11.8 kg presented with left hindlimb lameness of 2 to 3 months secondary to Legg–Calve–Perthes disease. Computed tomography and radiographs were used for surgical planning. Patient-specific instrumentation (PSI) and 3D bone models were printed out of a biocompatible material and used for preoperative rehearsal and intraoperative use. Patient-specific instrumentation enabled coaxial initial drilling and reaming. The PSI facilitated coaxial alignment during the initial drilling and reaming process. However, coaxial alignment was not maintained during broaching and stem insertion, deviating from the guided preparation of the initial bed. In the authors' opinion, PSI improved the precision of a major procedural step compared to traditional techniques. While this novel technique for BFX total hip replacement with PSI demonstrated promising results in this case, the limitations highlighted underscore the necessity for further research.

Keywords

Legg–Calve–Perthes disease - 3D printing - total hip replacement

Authors' Contributions

J.H.C. collated the case information, wrote the manuscript, and aided in manuscript revision. B.P. aided in manuscript preparation and revision. R.L. performed the surgery and aided in manuscript revision.


Ethical Approval

All authors confirm that this journal's ethical policies have been adhered to. No ethical approval was required as this is a case study with no original research data.




Publication History

Received: 29 July 2024

Accepted: 20 December 2024

Article published online:
14 February 2025

© 2025. 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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