MRI may be a diagnostic aid when other modalities fail to identify clearly the cause of proximal metacarpal and metatarsal pain; and may improve selection of adequate therapy and prognosis for injuries in this region.

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CAREFUL postmortem examination and interpretation of findings, assisted by good clinical records, does much to throw light on the pathogenesis and nature of hoof disorders in farm animals and horses. Although there is much speculation surrounding the pathogenesis of laminitis in cattle, the principal mechanisms have largely been determined. These mechanisms and their associated lesions are described in this article.