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May 2, 20260 citations

Concurrent Partial Avulsion of Popliteal and Long Digital Extensor Tendons in a Juvenile Dog.

RSRodrigo Corral SalazarKansas State University MHMartin HamonKansas State University ABAurelie BruwierKansas State University

Key Points

To report a unique case of concurrent partial avulsion of popliteal and long digital extensor tendons in a juvenile dog.
Evaluation of a 5-month-old Chesapeake Bay Retriever with left pelvic limb lameness after trauma.
Radiographic, MRI, and ultrasonographic assessments were conducted to confirm the injury.
Medical management was implemented based on the imaging findings.
Concurrent partial avulsion of both tendons was successfully identified using MRI and ultrasonography.
Associated findings included bone marrow edema, mild synovial effusion, and a lateral collateral ligament sprain.
The dog showed improvement with medical management after the injury.

Abstract

A 5-month-old, 17.8 kg intact female Chesapeake Bay Retriever presented for the evaluation of left pelvic limb lameness following trauma. The dog had been persistently weight-bearing lame for 11 days after an abnormal landing. Radiographs, magnetic resonance imaging (MRI), and ultrasonography revealed a partial avulsion of the left long digital extensor and popliteal tendons, with associated bone marrow edema, mild synovial effusion, and a low-grade lateral collateral ligament sprain. This case represents the first documented instance of concurrent partial avulsion of both tendons confirmed by MRI and ultrasonography, with successful medical management.

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