Hinged circular fixator construct for correction of congenital metatarsal deformity in a foal

E. G. Porter; L. C. Cuddy; A. S. Graham; D. J. Reese; M. B. Porter; A. J. Morton; D. D. Lewis

doi:10.3415/VCOT-13-01-0007

Veterinary and Comparative Orthopaedics and Traumatology, Table of Contents

Vet Comp Orthop Traumatol 2014; 27(01): 74-79
DOI: 10.3415/VCOT-13-01-0007

Case Report

Schattauer GmbH

Hinged circular fixator construct for correction of congenital metatarsal deformity in a foal

Authors

E. G. Porter

¹Department of Small Animal Clinical Sciences, College of Veterinary Medicine, University of Florida, Gainesville, Florida, USA
L. C. Cuddy

¹Department of Small Animal Clinical Sciences, College of Veterinary Medicine, University of Florida, Gainesville, Florida, USA
A. S. Graham

²Department of Large Animal Clinical Sciences, College of Veterinary Medicine, University of Florida, Gainesville, Florida, USA
D. J. Reese

¹Department of Small Animal Clinical Sciences, College of Veterinary Medicine, University of Florida, Gainesville, Florida, USA
M. B. Porter

³PhD Veterinary Services, Alachua, Florida, USA
A. J. Morton

²Department of Large Animal Clinical Sciences, College of Veterinary Medicine, University of Florida, Gainesville, Florida, USA
D. D. Lewis

¹Department of Small Animal Clinical Sciences, College of Veterinary Medicine, University of Florida, Gainesville, Florida, USA

Abstract

Summary

A five-week-old American Quarter Horse colt was presented for evaluation of a left hindlimb deformity and lameness. Radiographs of the left hindlimb revealed a varus deformity with recurvatum originating in the middiaphysis of the third metatarsal bone. Surgical correction was undertaken by performing an osteotomy through the centre of rotation of angulation located within the mid-diaphysis of the third metatarsal bone, and a fourring hinged circular external fixator construct was applied. Distraction of the osteotomy site was performed over an 11 day period. Notable complications included failure of a fixation pin, infection of the surgical site, and temporary laxity of the supporting tendons and ligaments of the contralateral metatarsophalangeal joint. The fixator was maintained until there was sufficient bone formation to allow frame removal, 152 days after the initial surgery. Use of a hinged circular construct allowed for partial correction of the deformity with resultant lengthening and resolution of the lameness in this colt.

Keywords

Distraction osteogenesis - horse - external - fixator - congenital metatarsal deformity

Full Text

References

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