Claw most commonly affected by corkscrew claw?

• A. Lateral claw of hind leg
• B. Medial claw of front leg
• C. Lateral claw of front leg
• D. Medial claw of hind leg

Answer: (A)

This item tests which claw is most prone to corkscrew claw. Corkscrew claw is a twisting deformity of the hoof horn that develops when abnormal weight bearing and growth cause rotation of the toe. In cattle, this condition most often shows up on the lateral claw of the hind leg because the hind limbs carry more weight and the lateral claw bears more load and experiences more wear. The front claws are less loaded and more balanced, and the medial hind claw is less commonly affected than the lateral one. So the lateral hind claw is the classic site for corkscrew claw.