Surgical stabilization of an occipitoatlantoaxial malformation in an adult dog |
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| Authors: | Galban Evelyn M Gilley Robert S Long Sam N |
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| Institution: | Neurology and Neurosurgery, Department of Clinical Studies, School of Veterinary Medicine, University of Pennsylvania, Philadelphia, PA, USA. egalban@vscdel.com |
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| Abstract: | Objective: To report surgical planning, technique, and outcome of stabilization surgery in an adult dog with occipitoatlantoaxial malformation (OAAM). Study Design: Clinical report. Animal: A 19‐month‐old, 25.5 kg, male castrated, Shiba Inu. Methods: Radiographic and magnetic resonance imaging were used to identify and characterize OAAM. Using a ventral approach to the cranial cervical region 2 cortical bone screws were inserted from the axis into the malformed atlas and occiput. Results: Ambulation was conserved postoperatively. Within 4 weeks, neurologic examination was mostly normal except for decreased proprioception in the right pelvic limb. At 9 months, the dog retained an extended neck posture, but had no neurologic abnormalities. Conclusion: OAAM should be considered as a differential diagnosis in an adult dog with cervical myelopathy. Surgical fixation with cortical bone screws using a ventral approach can be successful. |
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