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Open Access
CC BY 4.0 · VCOT Open 2021; 04(01): e24-e31
DOI: 10.1055/s-0041-1723831
Case Report

Internal Radioulnar Fixation for Treatment of Nonunion of Proximal Radius and Ulna Fractures in a Toy Breed Dog

Autoren

  • Luca Vezzoni

    1   Clinica Veterinaria Vezzonim, Cremona, Italy

  • Paolo Abrescia

    1   Clinica Veterinaria Vezzonim, Cremona, Italy

  • Aldo Vezzoni 

    1   Clinica Veterinaria Vezzonim, Cremona, Italy
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Abstract

In this case report, we describe an alternative surgical procedure to treat proximal radius and ulnar nonunion in a toy breed dog. A 14-month-old, Maltese cross-breed dog was referred after previous treatment with external and internal fixation had failed, resulting in a nonunion of a fracture of the proximal radius and ulna with the proximal radius fragment too small and friable to be used for fixation. A craniomedial approach was made to debride the radius nonunion site and a second approach to the lateral aspect of the ulna was made. The fracture was realigned and a titanium locking plate was applied in bridging fashion, fixed to the proximal ulnar fragment with three locking screws in the most proximal plate holes, a fourth screw was inserted in the mid-shaft of the distal ulnar fragment and three locking screws were inserted in the distal most holes of the plate through the distal ulna to engage the distal radial fragment. A recombinant bone morphogenetic protein 2 graft was inserted into the radius and ulna fracture sites. The dog had a successful clinical and radiographic outcome with bridging of the defect 4 weeks postoperatively and complete callus formation 8 weeks postoperatively. Implants have undergone dynamization and then removal. Use of a locking plate as an internal fixator achieving fixation of the proximal ulna and distal radius can be considered an option for the treatment of proximal radioulnar nonunions with a small proximal radial fragment.

Keywords

locking plates - fracture - radius ulna


Publikationsverlauf

Eingereicht: 25. Dezember 2020

Angenommen: 03. Mai 2020

Artikel online veröffentlicht:
18. Februar 2021

© 2021. 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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