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ABSTRACT OF THE WEEK

Equine veterinary education
Volume 34 | Issue 4 (April 2022)

Surgical repair of a full-thickness ear pinna defect in a horse

Equine Vet Educ. April 2022;34(4):e169-e175. 27 Refs
M D Cullen1, A Ehrle, S C Willson, J M Wilmink, D C Archer
1 School of Veterinary Science, Philip Leverhulme Equine Hospital, Leahurst, Neston, Cheshire, UK. matthew.cullen@liverpool.ac.uk

Author Abstract

A 5-year-old gelding used for showing was presented for surgical repair of a full-thickness 15 mm diameter defect in the right pinna, which had occurred as a delayed complication following laser excision of a sarcoid. The defect had resulted in progressive deformity of the ear, and the horse was considered at risk of further injury if the defect became entrapped on a fixed object. Two artificial dermis meshes were inserted to encourage the formation of granulation tissue across the defect, and a commercially available skin expander was implanted adjacent to the site. Eighteen days later, a second surgery was performed to remove the skin expander and to mobilise a local rotational skin flap to close the defect. Both surgeries were performed under standing sedation and local anaesthesia. The site healed well, avoiding further potential trauma to the ear and deformity due to tissue contracture at the site, although some deformation of the lateral aspect of the cartilage remained.

Keywords

horse, pinna, surgical repair, skin expander, rotation skin flap

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