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Navicular Syndrome

Navicular Syndrome. Myria Shipman, Dr. Frank Flanders and Asha Wise Georgia Agricultural Education Curriculum Office Georgia Department of Education February 2006. Disease or Syndrome?. Because there is no proven cause or treatment it is better referred to as a syndrome

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Navicular Syndrome

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  1. Navicular Syndrome Myria Shipman, Dr. Frank Flanders and Asha Wise Georgia Agricultural Education Curriculum Office Georgia Department of Education February 2006

  2. Disease or Syndrome? • Because there is no proven cause or treatment it is better referred to as a syndrome • Navicular Syndrome is generalized heel pain due to problems with the navicular bone • Other causes of heel pain are often misdiagnosed as Navicular Syndrome

  3. Three Causes of Navicular • Concussion or trauma to the Navicular bone • Thinning and erosion of the cartilage • Degeneration of the Navicular bone • Injuries of the Navicular bone and surrounding areas • Arterial obstruction • strain and inflammation of the impar ligament can obstruct these blood vessels and reduce blood flow to and from the navicular bone

  4. Changes in the Navicular bursa synovium *Osteoarthrosis (degenerative joint disease)

  5. Predisposing Factors • Poor hoof conformation • long toes and low heels • narrow upright feet • Extreme work on hard surfaces • Standing in stalls for extended periods of time • Improper trimming and shoeing

  6. Symptoms • Often a unilateral lameness • Usually restricted to the forelimbs • Walking toe to heel • Short choppy strides • Reduced wear of the heel region

  7. Management Practices • Medication • vasodilators • anti-inflammatory • corticosteroids • Reduce intensity of training • Exercise program should be determined by the severity of problem

  8. Corrective shoeing • corrective trimming: raise heel, role toe • types of shoes : keg, conventional bar, egg bar, aluminum, rolled-toe (any of these can be combined with pads) • conformation of hoof and location of pain determines trimming and shoeing methods

  9. Surgery • Neurectomy (nerving): severing of the palmar digital nerves on either side of the deep flexor • Gallium Nitrate ??? – Many times bone disorders are caused by an excess of Aluminum – Gallium competes with Aluminum for absorption in the bone, causing a delay in further degeneration – Fed as a supplement

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