Canis ISSN: 2398-2942

Carpus: sprain

Contributor(s): Sarah Girling, Prof Walter Renberg

Introduction

  • Most common in working or racing dogs. Carpal sprains are common in the racing greyhound.
  • Cause: carpal hyperextension spraining palmar ligaments or tendons, especially insertion of flexor carpi ulnaris muscle on accessory carpal bone.
  • Signs: carpal swelling and pain on flexion.
  • Diagnosis: signs.
  • Treatment: rest plus anti-inflammatory drugs usually helpful.
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Pathogenesis

Etiology

  • Full extension of the carpus during exercise especially in racing reyhounds increases tension at tendon points particularly on the medial aspect of the left carpus and lateral aspect of the right carpus in the greyhound running in anticlockwise direction on a race track.
  • The medial aspect of the carpus is under tension subsequent to valgus angulation of the carpus in extension of up to 15°.

Pathophysiology

  • Hyperextension of carpal joint causes damage to palmar ligaments or tendons.
  • Hyperextension (common during racing) causes injury to palmar ligaments or tendons Carpus: hyperextension , especially insertion of flexor carpi ulnaris muscle on accessory carpal bone (may avulse).
  • May occur with accessory carpal bone fracture in the racing Greyhound.

Diagnosis

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Treatment

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Outcomes

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Further Reading

Publications

Refereed papers


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