Myelography in dogs
Keywords:
Myelopathy, herniated disk, diagnostic imagining, neurologyAbstract
Spinal cord diseases can cause pain and urinary incontinence. All these clinical signs can interfere in a significant way in life quality of ill patients. The clinical localization of the neurological lesions as well as the characteristic of the diseases course are of extreme importance in the elaboration of the possible differential diagnoses. In order to define the diagnosis and treatment, additional tests are necessary. Advanced imaging exams such as computed tomography (CT) and magnetic resonance imaging (MRI) stand out as complementary possibilities. These image modalities aren´t easily accessible in Brazil and other developing countries and are restricted to big cities. Considering this, more traditional image techniques such as myelography are still useful in spinal cord diseases diagnosis and treatment in places where CT and or MRI are inaccessible. Myelography requires general anesthesia and the spinal tap area must be clipped and surgically prepared. The spinal tap can be done in subarachnoid lumbar space or cisterna magna. Liquor fluence, twitching the tail or limbs are signs that the needle is in the subarachnoid space and myelography contrast can be administrated. There are four myelography patterns: normal, extradural, intradural-extramedullary and intramedullary) and these patterners can occur in different diseases etiologies. Subdural contrast administration can cause many side effects, the most studied is myelography induced seizures.
References
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