Page 448 - The Veterinary Care of the Horse
P. 448

the foal has found its feet. The foal should be assessed standing squarely and also at walk.

        The  breakover  of  each  foot  is  noted.  Radiography  is  helpful  in  assessing  the  degree  of
  VetBooks.ir  deformity and essential for identifying any bony abnormality. A video recording of the foal is
        useful for monitoring progress.




        Treatment

        Treatment is either conservative, i.e. with management changes, or surgical, depending on

        the severity of the condition and the age of the foal. Many foals are born with a minor degree
        of carpal valgus that improves spontaneously and requires nothing more than a few days of
        restricted exercise.



        CONSERVATIVE TREATMENT

        This may include:
        •    confinement to a large stable or small barn for newborn foals with ligament laxity

        •    restricted exercise in a small paddock

        •    appropriate trimming of the foot to balance it

        •    use  of  glue-on  shoes  with  extensions  to  encourage  normal  alignment  of  the  limb  and

             breakover
        •    correct nutrition

        •    foals  with  incomplete  ossification  of  the  carpus  or  tarsus  need  restricted  exercise  and

             support from bandages and possibly splints or casts to prevent collapse or fracture of the
             affected bones
        •    shockwave treatment is helpful in some cases.




        All  foals  managed  conservatively  should  be  closely  monitored.  Many  mild  or  moderate
        angular  limb  deformities  will  resolve  spontaneously,  but  those  which  fail  to  improve  or

        worsen should be treated surgically.


        SURGICAL TREATMENT

        The aim of surgical treatment is either to accelerate or slow down growth on one side of the

        growth  plate  in  order  to  straighten  the  limb.  Growth  can  be  slowed  down  on  the  faster-
        growing side by placing staples or screws and wire across the growth plate. This allows the

        other side of the limb to catch up and the implants are removed once the limb is straight. The
        slower-growing side can be encouraged to lengthen by a technique which involves cutting
        and  elevating  the  periosteum  which  relieves  the  tension  across  the  growth  plate  and
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