Growth Plate Retardation
Angular limb deformity due to metaphyseal dysplasia (Fig. 6.1) is a common malady afflicting the distal radius in the young growing foal. The deformity responds well to growth plate retardation. The affected animal shows an abnormal curvature of the radius proximal to the growth plate causing the limb distal to that point to deviate laterally. The lateral aspect of the distal radius is strongly concave or “dished,” although radiographically, the true epiphysis of the bone will show the normal rectangular configuration. In making the diagnosis, care should be taken to differentiate the condition from the various other abnormalities of the carpus that can result in similar clinical appearances. A similar condition may affect the distal tibia and can be treated by essentially the same surgical procedure.
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