In this episode of The Hoofcare Companion, we explore the anatomy and function of the extensor tendons of the equine forelimb and hind limb. Understanding these important structures is essential for farriers, veterinary professionals and equine science students, as they play a key role in normal locomotion, limb stability and the diagnosis of lameness.

We'll discuss the principal extensor tendons of both the forelimb and hind limb, including their origin, route, insertion and function, before examining their clinical significance and how injuries can affect movement and performance. You'll also discover why extensor tendon injuries often carry a more favourable prognosis than flexor tendon injuries and why this knowledge is valuable when assessing horses in everyday practice.

This episode has been designed as an educational resource for farriery apprentices, qualified farriers, veterinary surgeons, equine veterinary nurses, equine physiotherapists, equine science students and horse owners wishing to develop a deeper understanding of equine anatomy.

To support inclusive learning and SEND (Special Educational Needs and Disabilities), this episode includes clearly defined learning outcomes, a readable companion article and five retrieval questions to reinforce learning and improve long-term knowledge retention.

Learning Outcomes

By the end of this episode, you should be able to:

• Describe the anatomy of the extensor tendons of the equine forelimb and hind limb, including their origin, route and insertion.
• Explain the primary functions of the extensor tendons during locomotion and their role in maintaining normal limb movement.
• Recognise the clinical significance of extensor tendon injuries and understand how knowledge of their anatomy assists farriers in assessing lameness and planning appropriate farriery interventions.

Retrieval Questions

1. Name the two principal extensor tendons found in the equine forelimb and the two principal extensor tendons found in the hind limb.
2. Where does the common digital extensor tendon insert, and why is this attachment important for normal locomotion?
3. What are the primary functions of the extensor tendons during the swing phase of the stride?
4. Which nerves supply the extensor muscles of the forelimb and hind limb, and what gait abnormality may occur if these nerves are damaged?
5. Why do extensor tendon injuries generally have a better prognosis than injuries to the superficial or deep digital flexor tendons?

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