Achilles Tendon Rupture Treated with Flexor Digitorum Lateralis Tendon Transposition and Transarticular External Skeletal Fixator in Ouessant Sheep

Abstract

Objective To describe the appositional augmentation of a complete Achilles tendon rupture in Ouessant sheep, using the intact flexor digitorum lateralis tendon, and immobilization with a type II transarticular external skeletal fixator.

Clinical Report A 1-year-old neutered male Ouessant sheep was presented for Achilles tendon rupture and multiple bite wounds, secondary to a dog attack. The Achilles tendon was torn entirely, and a significant 3-cm gaping defect was present. The remnants of the Achilles tendon were debrided and attached using locking-loop and epitendinous sutures. The intact flexor digitorum lateralis tendon was then transposed and secured over the tendinous repair to increase the tendon strength. The bite wounds were closed with a primary repair. Finally, a type II transarticular external skeletal fixator was used to immobilize the tarsocrural joint for 6 weeks.

Results A mild lameness, associated with a decreased range of motion of the tarsocrural joint, was present at the time of external skeletal fixator removal. Four months postoperatively, the lameness had completely resolved. A slight decrease in the range of motion of the tarsocrural joint was conserved.

Clinical Significance In a small ruminant, transposition of the flexor digitorum lateralis was successful for the repair of an Achilles tendon rupture with a large musculotendinous gap and infected open wounds. To the authors' knowledge, this is the first such case described in sheep.

Keywords

sheep - Achilles tendon rupture - flexor digitorum lateralis - tendon transposition - common calcaneal tendon

Publikationsverlauf

Eingereicht: 29. Juli 2023

Angenommen: 19. Januar 2024

Artikel online veröffentlicht:
10. Mai 2024

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