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Clinical effects of computed tomography–guided lumbosacral facet joint, transforaminal epidural, and translaminar epidural injections of methylprednisolone acetate in healthy dogs

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  • 1 Diagnostic Imaging Section, Department of Small Animals and Equidae, Fundamental and Applied Research for Animals and Health, Faculty of Veterinary Medicine, University of Liège, 4000 Sart-Tilman, Belgium
  • | 2 Small Animal Internal Medicine Section, Department of Small Animals and Equidae, Fundamental and Applied Research for Animals and Health, Faculty of Veterinary Medicine, University of Liège, 4000 Sart-Tilman, Belgium
  • | 3 Small Animal Internal Medicine Section, Department of Small Animals and Equidae, Fundamental and Applied Research for Animals and Health, Faculty of Veterinary Medicine, University of Liège, 4000 Sart-Tilman, Belgium
  • | 4 Anesthesia Section, Department of Small Animals and Equidae, Fundamental and Applied Research for Animals and Health, Faculty of Veterinary Medicine, University of Liège, 4000 Sart-Tilman, Belgium
  • | 5 Department of Medical Imaging, Centre Hospitalier Chrétien, Liège, Belgium.
  • | 6 Diagnostic Imaging Section, Department of Small Animals and Equidae, Fundamental and Applied Research for Animals and Health, Faculty of Veterinary Medicine, University of Liège, 4000 Sart-Tilman, Belgium

Abstract

OBJECTIVE To determine clinical effects of CT-guided lumbosacral facet joint, transforaminal epidural, and translaminar epidural injections of methylprednisolone acetate in healthy dogs.

ANIMALS 15 healthy Beagles.

PROCEDURES Dogs were randomly assigned to 3 groups (5 dogs/group) and received a single CT-guided lumbosacral facet joint, transforaminal epidural, or translaminar epidural injection of methylprednisolone acetate (0.1 mg/kg). Contrast medium was injected prior to injection of methylprednisolone to verify needle placement. Neurologic examinations were performed 1, 3, 7, and 10 days after the injection. In dogs with neurologic abnormalities, a final neurologic examination was performed 24 days after the procedure.

RESULTS Methylprednisolone injections were successfully performed in 14 of the 15 dogs. In 1 dog, vascular puncture occurred, and the methylprednisolone injection was not performed. No major or minor complications were identified during or immediately after the procedure, other than mild transient hyperthermia. During follow-up neurologic examinations, no motor, sensory, or postural deficits were identified, other than mild alterations in the patellar, withdrawal, cranial tibial, and perineal reflexes in some dogs. Overall, altered reflexes were observed in 11 of the 14 dogs, during 27 of 65 neurologic examinations.

CONCLUSIONS AND CLINICAL RELEVANCE Results suggested that CT-guided lumbosacral facet joint, transforaminal epidural, and translaminar epidural injections of methylprednisolone acetate were associated with few complications in healthy dogs. However, the number of dogs evaluated was small, and additional studies are needed to assess clinical efficacy and safety of these procedures.

Contributor Notes

Address correspondence to Dr. Liotta (apliotta@ulg.ac.be).