Surgical correction of severe strabismus and enophthalmos secondary to zygomatic arch fracture in a dog

Konrade, Kricket A.; Clode, Alison B.; Michau, Tammy M.; Roe, Simon C.; Trumpatori, Brian J.; Krug, William; Gilger, Brian C.

doi:10.1111/j.1463-5224.2008.00689.x

Cited by 11 publications

(7 citation statements)

References 13 publications

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“…In man, vertical orbital dystopia or relative ventral displacement of 1 globe can lead to substantial diplopia and functional loss of depth perception and visual acuity . Although these changes can be difficult to assess in dogs, the potential for more overt side effects such as keratitis, conjunctivitis, or optic neuropathy provide sufficient incentive to maintain appropriate globe position …”

Section: Discussionmentioning

confidence: 99%

“…This procedure results in a ventral defect of the orbit that may compromise orbital stability and lead to ventral displacement of the globe. Sequela can range from mild cosmetic deficits such as strabismus, enophthalmos, and epiphora to more serious complications such as conjunctivitis, uveitis, retinal or optic nerve damage, and globe rupture …”

Section: Introductionmentioning

confidence: 99%

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Use of a temporalis fascia transposition flap for ventral orbital stabilization after ventral orbitectomy in a dog

2019

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Objective: To describe a novel surgical technique for ventral orbital reconstruction after ventral orbitectomy by using a temporalis fascia transposition flap. Study design: Case report. Methods: A 7-year-old, spayed female Boston terrier was treated for multilobular osteochondrosarcoma arising from the cranial aspect of the left zygomatic arch, causing asymmetry of the face and mild exophthalmos of the left eye. A ventral orbitectomy with a wide surgical excision (including the cranial aspect of the zygomatic bone, the medial aspect of the lacrimal bone, and the dorsal aspect of the maxilla) was performed with preservation of the left eye. To support and maintain the left eye in a normal position, a temporalis fascia transposition flap was elevated and used. No complications occurred during the procedure. Results: Thirteen days after surgery, the referring veterinarian reported no complications. Complete excision was confirmed on histopathology. Eighty-three days after surgery, the dog remained asymptomatic with only mild epiphora of the left eye. Follow-up information from the owner 11 months after surgery indicated that the dog was asymptomatic with minimal ventral globe deviation. Conclusion: Additional ventral support of the globe after ventral orbitectomy via a temporalis fascia transposition flap resulted in an excellent functional and cosmetic outcome. Clinical significance: A temporalis fascia transposition flap can be used to reconstruct the ventral aspect of the orbit in dogs.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Use of a temporalis fascia transposition flap for ventral orbital stabilization after ventral orbitectomy in a dog

2019

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“…Vergleichbare Angaben über die Häufigkeit von Orbitafrakturen bei Katzen oder Hunden mit kraniofazialen Traumata liegen den Autoren nicht vor. In der Literatur finden sich bisher nur Fallberichte über laterale Orbitafrakturen bei Hunden mit Traumata des Gesichtsschädels (9,28).…”

Section: Tableunclassified

Computertomographische Untersuchung des Schädels von Katzen mit kraniofazialem Trauma im Hinblick auf Maxilla- und Orbitafrakturen

Wunderlin¹,

Amort²,

Wigger³

et al. 2012

Tierarztl Prax Ausg K

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Zusammenfassung Gegenstand und Ziel: Computertomographische Untersuchung des Schädels von Katzen mit einem kraniofazialen Trauma. Auswertung der Befunde hinsichtlich des isolierten und gemeinsamen Auftretens von Maxilla-und Orbitafrakturen. Material und Methoden: Prospektive Studie (August 2006 – Juni 2010): Bei Katzen mit kraniofazialem Trauma erfolgte eine computertomographische Untersuchung des Schädels. Ergebnisse: Bei den 38 untersuchten Tieren handelte es sich mit Ausnahme einer Maine-Coonund einer Somali-Katze um Europäische Kurzhaarkatzen. Das Alter der Katzen lag zwischen 11 und 187 Monaten (Durchschnitt 53 Monate). Das Verhältnis männlicher zu weiblicher Tiere betrug 22:16 (1,4). Insgesamt wiesen 27 (71%) Tiere mindestens eine Maxillafraktur auf. Multiple Maxillafrakturen (≥ 2) bestanden bei 16 (42%) Katzen. Die Orbita war bei 28 (74%) Tieren in das Frakturgeschehen involviert. Maxilla-und Orbitafrakturen traten statistisch signifikant (p < 0,001) häufig gemeinsam auf und wurden bei 26 (68%) Katzen diagnostiziert. Die Odds Ratio für das gemeinsame Auftreten dieser Frakturen betrug 87 (p < 0,001). Multiple Frakturen (≥ 2) der knöchernen Augenhöhle kamen bei 16 (57%) der 28 Katzen mit Orbitafrakturen vor. Beidseitige Orbitafrakturen wiesen 25 (67%) Patienten auf (95%-Konfidenzintervall: 48–79%). Am häufigsten (66%) fanden sich Frakturen im Bereich der medialen Orbitawand, gefolgt von Frakturen des Orbitabodens (61%). Schlussfolgerung: Der Einsatz der Computertomographie (CT) zeigte, dass Maxilla-und Orbitafrakturen bei Katzen mit einem kraniofazialen Trauma deutlich häufiger vorkommen als bisher angenommen und bei über der Hälfte der Patienten kombiniert auftreten. Bei Katzen mit Orbitafrakturen ist überwiegend die mediale und ventrale Orbitawand in das Frakturgeschehen involviert. Klinische Relevanz: Maxilla-und Orbitafrakturen kommen bei Katzen mit einem kraniofazialen Trauma häufig vor. Die mittels CT gewonnenen Informationen könnten zukünftig zu einer Optimierung des Behandlungsregimes beitragen.

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“…Management of caudally situated neoplasms commonly necessitates wide surgical resection such as caudal maxillectomy and partial orbitectomy to ensure tumor‐free margins and prevent tumor recurrence. These procedures may, however, compromise orbital stability and lead to complications such as traumatic uveitis, optic nerve damage, hyphema, globe rupture, retinal detachment, enophthalmos, strabismus, chronic epiphora, nasolacrimal duct damage, and conjunctivitis, all of which influence function and cosmesis . Ventral orbital defects as a result of surgical procedures or even extensive trauma may be challenging to repair, even in humans …”

Section: Introductionmentioning

confidence: 99%

A novel technique for ventral orbital stabilization: the masseter muscle flap

Sivagurunathan

Boy

Steenkamp

2013

Veterinary Ophthalmology

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Loss of the caudal maxilla and ventral orbit after tumor resections can have negative functional and aesthetic influences on the eye involved. This article reports on a case of a caudal maxillary acanthomatous ameloblastoma involving the ventral orbit that was resected and stabilized with a masseter muscle flap. The masseter muscle flap was generated from the superficial belly of the masseter muscle in order to close a defect in the orbital rim, created by a caudal maxillectomy.None of the published complications such as enophthalmos, excessive lacrimation, globe deviation or strabismus were noted, eight months following the procedure. The only clinical sign present at the time of re-evaluation was mild lacrimation. The authors propose the use of a masseter muscle flap as a viable technique in stabilizing the ventral orbit after caudal maxillectomy and ventral orbitectomy, preventing the complications associated with this surgery.

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Surgical correction of severe strabismus and enophthalmos secondary to zygomatic arch fracture in a dog

Cited by 11 publications

References 13 publications

Use of a temporalis fascia transposition flap for ventral orbital stabilization after ventral orbitectomy in a dog

Use of a temporalis fascia transposition flap for ventral orbital stabilization after ventral orbitectomy in a dog

Computertomographische Untersuchung des Schädels von Katzen mit kraniofazialem Trauma im Hinblick auf Maxilla- und Orbitafrakturen

A novel technique for ventral orbital stabilization: the masseter muscle flap

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