What does Extradural defect mean?
Indentation of the thecal sac or dura by disc bulge, osteophyte, defect in the bone, ligament, cyst or tumor. This terminology is often used by radiologists noting abnormalities on imaging studies.
What is extradural cyst?
Extradural arachnoid cysts (EAC) are a rare entity that may cause spinal cord or radicular nerve compression, usually in young adults. The most common locations are the posterior or posterolateral region of the thoracic spinal canal or the thoracolumbar junction.
What causes narrowing of L5 S1?
Premature wear and tear of spinal discs as seen in degenerative disc disease is the leading cause of a herniated discs at L5-S1. Spinal disc-related conditions are all linked to disc degeneration; for the L5-S1 disc to be herniated, it must have pre-existing degenerative changes.
What is ventral epidural defect?
The presence of a ventral longitudinal spinal epidural fluid collection in patients with SS is clue to an associated dural defect, the presence of which is suggested by contrast extravasation on a dynamic CT myelogram. The defect is generally due to an adjacent osteophyte or calcified disk herniation.
Is narrowing of the spine serious?
Spinal stenosis is a condition that results in the narrowing of the spinal column, often accompanied by painful, debilitating compression of the spinal cord as well as nerve roots. For some people, the pain can be so severe it is incapacitating, making even everyday activities nearly impossible.
Can epidural cause neurological problems?
Nerve damage is a rare complication of spinal or epidural injection. In the majority of cases, a single nerve is affected, giving a numb area on the skin or limited muscle weakness. These effects are usually temporary with full recovery occurring within days or a few weeks.
What is thecal sac narrowing?
Midline stenosis compresses the central sac of nerve tissue (e.g., the dural/thecal sac containing the spinal fluid and lumbar nerve roots called the cauda equina). Compression to the sides impinges on the individual exiting nerve roots.
Are Tarlov cysts serious?
In some instances Tarlov cysts can cause nerve pain and other pain, weakness, or nerve root compression. Acute and chronic pain may require changes in lifestyle. If left untreated, nerve root compression can cause permanent neurological damage.
What causes the thecal sac to bulge?
Pressure exerted on the thecal sac can cause the disk to bulge. This pressure can tear the spinal cord. The severity of this pressure depends on what is causing it. Compression of the thecal sac can arise from a number of factors. These factors include:
Can cysts cause compression of the thecal sac?
Cysts can also cause compression of the thecal sac. A synovial cyst occurs when the joint in your lower spine degenerate. This cyst is filled with fluids and is more prevalent in older people. Synovial cyst can exert pressure inside your spinal canal as well as compress the thecal sac 5.
What is the thecal sac enclosed in?
Thecal sac is enclosed in the Dura Matter. Dura matter is the outer layer which covers the central nervous system, which includes the brain and spinal cord 1. Thecal sac varies in both genders.
What is the treatment for the thecal sac compression?
Thecal sac compression causes pain in the lower back. Your doctor will give you analgesics to help reduce lower back pain. Anti-inflammatory drugs can be used to relieve swellings and inflammation. Surgical intervention is the preferred choice of treatment to correct the structures near the thecal sac.