Bucked Shins, Sore shins, Saucer fractures

What are bucked shins? What causes bucked shins? Is this problem preventable? Is it able to be fixed once it happens?

Bucked Shins/Merck Vet Manual
There is also an image of bucked shins.

Bucked Shins/California Thoroughbred Breeders Association

Bucked Shins
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