What is the anatomy involved in sheared heels?

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Multiple Choice

What is the anatomy involved in sheared heels?

Sheared heels involve the area where the hoof wall meets the soft tissues of the heel. The key players here are the hoof wall, the frog, the laminar corium (the sensitive tissue that forms the laminae attaching the wall to the pedal bone), and the sensitive heel tissues such as the digital cushion. When a shear force acts across the heel, these structures are stressed together, and disruption of the laminae and the surrounding soft tissues causes the heel to split or separate. The other options miss how this region is built and where the primary damage occurs: deeper bones like the navicular and coffin joint aren’t the immediate structures torn in a shear, and focusing only on frog tissue or sole horn (or only the digital cushion and navicular bursa) doesn’t capture the full interface between the hoof wall and the sensitive laminae and heel tissues.

Sheared heels involve the area where the hoof wall meets the soft tissues of the heel. The key players here are the hoof wall, the frog, the laminar corium (the sensitive tissue that forms the laminae attaching the wall to the pedal bone), and the sensitive heel tissues such as the digital cushion. When a shear force acts across the heel, these structures are stressed together, and disruption of the laminae and the surrounding soft tissues causes the heel to split or separate. The other options miss how this region is built and where the primary damage occurs: deeper bones like the navicular and coffin joint aren’t the immediate structures torn in a shear, and focusing only on frog tissue or sole horn (or only the digital cushion and navicular bursa) doesn’t capture the full interface between the hoof wall and the sensitive laminae and heel tissues.

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