In fact, the anatomical studies have demonstrated that after the radicular medullary arteries enter the neuroforamen in the anterior aspect of exiting nerve root and dorsal root ganglion, they often travel a distance superiorly and laterally in the lateral epidural space to join the anterior spinal artery supplying the anterior two thirds of the spinal cord. Additionally, in about 63% of cases of cadaver studies, there is a posterior branch of the radicular medullary artery going to the dorsal aspect of the cauda equina. It is conceivable that the epidural needle in the interlaminar lumbar epidural steroid injection will very likely encounter the radicular medullar artery in the lateral aspect of the epidural space or midline posterior epidural space.
Spinal injections, like other medical procedures, have risks. Complications include risk of infection, low blood pressure, headache, and injury to nerve tissue. These risks are low. Conclusion
We perform the full range of injection therapies to provide the best possible pain management for your condition. The skilled medical team at SDCSD will carefully discuss the options with you, and we'll give you detailed instructions for before and after the procedure so that you are well prepared.
Another common complication of chronic pain is central sensitization. This is a development involving both the peripheral nervous system (PNS) and the central nervous system (CNS). Local tissue injury and inflammation activate the PNS, which sends signals through the spinal cord to the brain. Central sensitization occurs when there is an increase in the excitability of neurons within the CNS at the level of the spinal cord and higher. Eventually normal inputs from the PNS begin to produce abnormal responses. Low-threshold sensory fibers activated by very light touch of the skin activate neurons in the spinal cord that normally only respond to painful stimuli. As a result, an input that would normally produce a harmless sensation now produces significant pain.