3.1 | Neurological symptoms of SDAVF
A typical patient with SDAVF has symptoms associated with thoracic myelopathy, epiconus syndrome, and conus medullaris syndrome1. Thoracic myelopathy includes motor weakness of the proximal lower extremities, posterior funiculus dysfunction, and exaggerated deep tendon reflexes. Epiconus syndrome encompasses a gradual onset of numbness that initiates in the distal regions of the lower limbs, and progresses upward. Conus medullaris syndrome includes bowel and bladder dysfunction. Claudication has been associated not only with walking but also with bathing, drinking, sleeping, gardening, and even singing 1, 3. These symptoms are specific to SDAVF and differ significantly from those of spinal stenosis1, 3. If symptoms cannot be explained by common spinal stenosis, the possibility of SDAVF should be considered.