ISSN 2398-2977      

Orbit: trauma

pequis
Contributor(s):

Prof Derek Knottenbelt


Introduction

Pathogenesis

Etiology

  • Trauma:
  • Dorsal orbit: due to horses rearing up in stocks, starting gates, trailers and low-ceiling boxes/stalls/passage ways.
  • Lateral orbit: due to collisions with hard structures, iatrogenic restraint injuries or kicks.

Pathophysiology

  • The equine globe is protected by a complete bony anterior orbital rim and partially enclosed orbit.
  • Traumatic damage to the orbit is common because of the behavior of horses and their relatively prominent eyes.
  • The type and direction of the trauma will affect the extent of the injuries.
  • Dorsal orbit:
  • Minor trauma:
  • Generalized eyelid edema and lacerations   Eyelid: trauma    Eyelid: trauma - contusion and abrasion  .
  • Serious trauma:
  • Secondary infection of wounds   →   orbital cellulitis   Orbit: cellulitis  .
  • Lateral orbit:

Diagnosis

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Treatment

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Prevention

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Outcomes

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Further Reading

Publications

Refereed papers

  • Recent references from PubMed and VetMedResource.
  • Blogg J R et al (1990) Skull and orbital blow-out fractures in a horse. Equine Vet J Suppl 10, 5-7 PubMed.
  • Modransky P et al (1989) Management of facial injuries. Vet Clin N A Equine Pract 5, 665-682 PubMed.
  • Caron J P et al (1986) Periorbital skull fractures in five horses. JAVMA 188, 280-284 PubMed.

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