Hypertrophic osteodystrophy

Abstract

Hypertrophic osteodystrophy is a developmental orthopaedic disease of medium to large breed dogs resulting in pyrexia, metaphyseal swelling and lameness. The lameness is often severe and may be episodic. The distal radius and ulna are the most commonly affected sites however occasionally the ribs and mandibles may be involved. The disease is diagnosed on the typical radiographic features. The aetiology of HOD is unknown, however it is suspected to be multifactorial; it is a self limiting disease and has a good prognosis.