Basset Hound Barking
Basset Hound Barking

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Carpal or tarsal joints (hocks) are incompletely extended (buckled) causing the limb to be angled forward, and the joint to protrude.
Explicit fault in many dog breeds (e.g. Basset Hound, Border Terrier and Dachshund).
Also known as over at the knees and (colloquially) as buck-kneed, goat-kneed and knuckled over.

Boer Goat