Which term describes inward and upward spiral rotation of the toe?

• A. Corkscrew claw
• B. Apex
• C. Laminitis
• D. Flexor tuberosity

Answer: (A)

Corkscrew claw describes a hoof deformity where the toe twists around its long axis, causing the claw to rotate inward and upward like a corkscrew. This inward, upward spiral rotation is the defining feature of the condition, a non-infectious problem seen in cattle and other clawed animals that leads to painful lameness and abnormal hoof wear.

Apex is just a general term for the tip or point of a structure, not a deformity of the claw. Laminitis involves inflammation of the hoof’s laminae and can cause changes to hoof alignment, but it’s not characterized by a precise spiral rotation of the toe. Flexor tuberosity is a bony prominence where the flexor tendons attach, a normal anatomical feature, not a description of a claw deformity.