ISSN 2398-2977      

Infraorbital nerve: perineural anesthesia

pequis
Contributor(s):

Dennis E Brooks


Introduction

  • To remove sensation from the area supplied by the infra-orbital nerve (trigeminal V).

Uses

  • As part of the investigation of headshaking   Behavior: headshaking  .
  • Anesthesia of the upper lip, nose and upper incisors to allow minor surgery.
  • Anesthesia within the infra-orbital canal has been used to enable teeth, up to the fourth cheek tooth, to be extracted   Teeth: extraction  , trephination of the maxillary sinus (rostral)   Head: trephination  , nasal cavity surgery and skin analgesia almost to the medial canthus of the eye.
  • Anesthesia of infraorbital nerve if bilateral infra-orbital neurectomy is to be performed.

Advantages

  • Simple.
  • Inexpensive.
  • Useful in cases where general anesthesia is not an option.

Disadvantages

  • Technically difficult to insert local anesthetic up canal.
  • Some horses may not tolerate injections on their head.

Requirements

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Preparation

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Procedure

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Aftercare

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Outcomes

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Further Reading

Publications

Refereed papers

  • Recent references from PubMed and VetMedResource.
  • Michou J & Leece E (2012) Sedation and analgesia in the standing horse 2. Local anaesthesia and analgesia techniques. In Pract 34 (10), 578-587 VetMedResource.
  • Mair T S (1999) Assessment of bilateral infraorbital nerve blockade and bilateral infraorbital neurectomy in the investigation and treatment of idiopathic headshaking. Equine Vet Educ 31 (3), 262-264 PubMed.
  • Wilkins P A (1997) Cyproheptadine medical treatment for photic headshakers. Comp Cont Ed Pract Vet 19 (1), 98-111 VetMedResource.
  • Madigan J E et al (1995) Photic headshaking in the horse - 7 cases. Equine Vet J 27, 306-311 PubMed.

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