Clinical conditions of the cervical articular process joints (APJ) are well recognised as a cause of pain and loss of function in horses.Clinical presentation varies, depending upon the type, location and severity of APJ pathology. Signs of dysfunction may be localised to the musculoskeletal system, nervous system or affect a combination of the two. Musculoskeletal signs include reduced cervical range of motion, altered head carriage, pain on palpation and focal muscle atrophy. 1,2,3 Neurological signs due to cervical spinal cord compression include ataxia, paresis and proprioceptive deficits. 4 Injury to the cervical nerve roots at their exit from the intervertebral foraminae

Veterinarians and personnel handling horses should be aware that S. equi may survive in an equine environment for longer than previously found, especially when protected by wet and cold conditions.

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