Reconstruction of Bilateral Chronic Triceps Brachii Tendon Disruption Using a Suture-Mediated Anatomic Footprint Repair in a Dog

Abstract

Simple Summary Chronic triceps brachii tendon disruptions in dogs can lead to significant lameness and discomfort, often requiring surgical intervention for effective treatment. This case report details the surgical reconstruction of bilateral chronic triceps brachii tendon disruptions in a 2-year-old female Pomeranian using a novel suture-mediated anatomic footprint repair technique. The technique, adapted from human medicine, involves creating a precise attachment of the tendon to the olecranon through specialized suturing and bone tunneling, which aims to restore normal anatomy and function. Following the surgery, the dog experienced significant improvement in forelimb function and was able to maintain a normal gait over a three-year follow-up period. This report demonstrates the successful application of a human surgical technique in veterinary medicine, providing a promising option for managing this rare but challenging condition in dogs. The technique’s success suggests its potential utility in similar cases, offering insights that could benefit surgical practices in veterinary orthopedics. Abstract A 2-year-old, intact female Pomeranian presented with bilateral forelimb lameness, characterized by the olecranon making contact with the ground. The patient experienced two separate incidents of falling, occurring four and three weeks before admission, respectively. Following each episode, non-weight-bearing lameness was initially observed in the left forelimb, followed by the development of crouch gait. Based on the physical examination, radiographic, and ultrasonographic findings, bilateral triceps brachii tendon disruption was diagnosed. Intraoperatively, excessive granulation tissue at the distal end of the tendon was excised. The footprint region of each triceps brachii tendon was decorticated with a high-speed burr until bleeding was observed. The triceps brachii tendon was reattached to completely cover its footprint on the olecranon using the Krackow suture technique. This method involves anchoring the suture through bone tunnels in the ulna. Trans-articular external skeletal fixation was applied to both forelimbs to immobile and stabilize the elbow joints for nine weeks. Subsequently, the dog gradually increased its walking activities while on a leash over a six-week period. At the three-year follow-up, the patient exhibited improved forelimb function and maintained a normal gait without signs of lameness. Suture-mediated anatomic footprint repair proved useful in this single case and may be an effective surgical alternative for the management of chronic triceps brachii tendon disruption in dogs.