Which epiphyseal plate closes at 6 months?

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Multiple Choice

Which epiphyseal plate closes at 6 months?

Growth plates (epiphyseal plates) are growing regions at the ends of long bones that allow bones to lengthen as a foal develops. They fuse (close) at different ages, which guides how we trim and shoe a young horse. The growth plate on the proximal phalanx, the P1 bone at the top of the long pastern, is the first to close, typically around six months. Once this plate closes, that portion of the bone stops lengthening, signaling a change in how the limb can grow and how we should handle it during farriery. The plates for the middle phalanx (P2) and the distal phalanx (P3) remain open longer and fuse later, so they continue to grow for a longer period. This is why the proximal phalanx plate is the one that closes at about six months.

Growth plates (epiphyseal plates) are growing regions at the ends of long bones that allow bones to lengthen as a foal develops. They fuse (close) at different ages, which guides how we trim and shoe a young horse. The growth plate on the proximal phalanx, the P1 bone at the top of the long pastern, is the first to close, typically around six months. Once this plate closes, that portion of the bone stops lengthening, signaling a change in how the limb can grow and how we should handle it during farriery. The plates for the middle phalanx (P2) and the distal phalanx (P3) remain open longer and fuse later, so they continue to grow for a longer period. This is why the proximal phalanx plate is the one that closes at about six months.

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