Page 491 - The Veterinary Care of the Horse
P. 491

Conservative management of foals

        In  foals  under  1  year  of  age  that  have  symptoms  of  wobbler  syndrome  due  to  dynamic
  VetBooks.ir  stenosis of the vertebral canal, conservative management can help to relieve the compression

        of the spinal cord. This involves the following.

        •    Restricting the energy levels of the diet to 65–75% of the recommended intake for the
             size and weight of the foal. Adequate protein levels and a balanced vitamin and mineral

             supplement are provided with increased levels of vitamins A and E and a specific level of
             selenium. Meadow or timothy hay (6–9% protein) is provided as roughage. The aim of

             this is to slow the growth rate of bone and improve bone metabolism in the hope that the
             vertebral canal will enlarge and relieve the compression of the spinal cord.
        •    Confining the foal to the stable for up to 6 months reduces the repeated compression of

             the spinal cord caused by neck flexion and movement.

        •    The feed and water should be provided at a height that is easily reached. Hay should be
             loose so the animal does not have to repeatedly flex his neck, pulling it from a net.

        •    Corticosteroids or non-steroidal anti-inflammatory drugs such as phenylbutazone may be

             given to reduce inflammation at the site of compression. These can produce a temporary
             reduction of neurological signs.




        Conservative management of older horses
        The aim of treatment is to suppress inflammation and reduce neurological signs.

        •    Intra-articular  medication  of  the  lower  neck  facet  joints  with  corticosteroids  can  be

             helpful.  This  may  alleviate  compression  by  reducing  soft  tissue  swelling  and  slowing
             down further arthritic changes.

        •    Non-steroidal  anti-inflammatory  drugs  such  as  phenylbutazone  may  be  prescribed  to
             reduce inflammation at the site of compression.

        •    Acupuncture may help to alleviate pain and inflammation associated with the soft tissue

             swelling and degenerative bony changes.


        SURGICAL TREATMENT

        Fusion  of  adjacent  cervical  vertebrae  is  used  for  treatment  of  both  dynamic  and  static
        stenosis.  With  the  horse  under  general  anaesthesia,  a  metal  basket  is  placed  across  the

        unstable vertebrae and packed with a bone graft. This stabilizes the vertebrae and allows the
        bones and spinal canal to remodel during the healing process, resulting in decompression of

        the spinal cord.
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