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Physeal Injuries — Salter–Harris & Ogden

Physis has zonal architecture; hypertrophic zone is weakest and fails in most injuries. Salter–Harris I–V (Slip, Above, Lower, Through, Rammed) with Ogden’s extension (VI–IX). Aim for **anatomic reduction**, especially for SH III–IV to prevent joint incongruity and growth arrest. Consider percutaneous reduction techniques to minimize physeal damage; avoid repeated forceful attempts. Long‑term surveillance for growth disturbance with Park–Harris lines and contralateral comparison.