ISSN 2398-2977      

Foal: wry nose - surgical correction

pequis

Synonym(s): Surgical correction of the Campylorrhinus lateralis


Introduction

  • Foals with moderate or severe deviation    Foal: wry nose   require surgical treatment to improve occlusion of incisors and cheek teeth, to correct respiratory obstruction, and to improve cosmesis.
  • Three surgical techniques have been reported:
    • Bilateral osteotomy of the premaxillae/maxillae and nasal bones, resection of the nasal septum, and insertion of a rib graft into the gap created by straightening premaxillae/maxillae.
    • Unilateral osteotomy of premaxilla/maxilla and distraction osteogenesis.
    • Bilateral osteotomy of premaxillae/maxillae and external fixation.

Uses

  • All these techniques aim to correct the deviation to restore dental occlusion, to reduce respiratory obstruction, and to improve cosmesis.

Advantages

  • The prognosis is good for athletic endeavors after surgical correction.

Disadvantages

  • Surgical techniques are difficult because they require fixation of transected facial bones.
  • Removal of the nasal septum is often difficult.

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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Prognosis

  • In one study, the cosmetic appearance of a large number of horses treated with osteotomy and rib graft was greatly improved. No horse had respiratory impairment, but when exercised, two horses (2/13) made an abnormal respiratory noise attributed to collapse of the alar folds.
  • A good outcome has been reported for two horses with wry nose treated by distraction osteogenesis and external fixation.

Further Reading

Publications

Refereed papers

  • Recent references from PubMed and VetMedResource.
  • Cousty M, Haudiquet P & Geffroy O (2010) Use of an external fixator for the correction of a wry nose in a mare. Equine Vet Educ 22 (9), 458-451 WileyOnline.
  • Schumacher J & Brink P (2010) Correction chirurgicale de la déviation congénitale du nez: étude de 13 cas. Prat Vet Equine 42  (167), 39-45 VetMedResource.
  • Schumacher J, Brink P, Easley J & Pollock P (2008) Surgical correction of wry nose in four horses. Vet Surg 37 (2), 142-148 PubMed.
  • Doyle A J & Freeman D E (2005) Extensive nasal septum resection in horses using a 3-wire method. Vet Surg 34 (2), 167-173 PubMed.
  • Puchol J L, Herran R, Durall I, Lopez J & Diaz-Bertrana C (2004) Use of distraction osteogenesis for the correction of deviated nasal septum and premaxilla in a horse. JAVMA 224 (7), 1147-1150 PubMed.
  • McKellar G M & Collins A P (1993) The surgical correction of a deviated anterior maxilla in a horse. Aus Vet J 70 (3), 112-114 PubMed.
  • Vandeplassche M, Simoens P, Bouters R, De Vos N & Verschooten F (1984) Aetiology and pathogenesis of congenital torticollis and head scoliosis in the equine foetus. Equine Vet J 16 (5), 419-424 PubMed.
  • Tulleners E P & Raker C W (1983) Nasal septum resection in the horse. Vet Surg 12 (1), 41-47 VetMedResource.
  • Valdez H, McMullan W C, Hobson H P & Hanselka D V (1978) Surgical correction of deviated nasal septum and premaxilla in a colt. JAVMA 173 (8), 1001-1004 PubMed.

Other sources of information

  • Brink P & Schumacher J (2010) Improved Surgical techniques for Correction of Wry Nose in 13 Horses. In: ECVS. Helsinki. pp 74-76.
  • Auer J A (2005) Craniomaxillofacial Disorders. In: Equine Surgery. 3rd edn. Eds: Auer J A & Stick J A. Saunders. pp 1341-1362.
  • Baker G J (1999) Abnormalities of Development and Eruption. In: Equine Dentistry. Ed: Baker G J. Saunders, USA. pp 49-59.

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