Fibrosis (scarring) of the membrane covering the spinal cord and spinal nerve roots as they pass through the spinal canal. This results in entrapment of these nerve roots that may cause chronic back and leg pain and neurological dysfunction. It can occur following spinal surgery, and has also been associated in the past with the use of an X-ray contrast medium. Very rarely it can occur in the lower end of the spinal canal in AS without any apparent reason, and is the cause of cauda equina syndrome in this disease.

Inflammation of the arachnoid membrane (one of the coverings of the spinal cord/brain) that can lead to scarring. This condition may be identified after surgery in some patients who have persistent pain.

Inflammation of the arachnoid membrane, most commonly seen within the spinal cord around the spinal cord and cauda equina.

thickening and scarring of the membranes which surround and protect the nerve roots. Cysts or adhesions develop, causing pressure on the cord, back pain and/or additional loss of nerve function. It can be caused by diseases such as meningitis and tuberculosis of the spine. More commonly it develops in people with spinal cord injury, or who have had operations on the spine. In the past it was often caused by the use of oil-based dyes injected into the spinal column to make myelograms. These dyes are no longed used. Milder forms of arachnoiditis are now believed to be the cause of the chronic back pain suffered by many able bodied people.

is a condition that affects one of the layers of tissue that surrounds, and protects, the nerves which run through the spinal canal. It may result from an infection or trauma. Patients develop severe pain in both the back and the legs and sometimes up as far as the arms and neck. Surgery can sometimes be performed to eliminate the scar tissue that has developed but unfortunately it is frequently unsuccessful. Further research is being done.

Inflammation and scarring of the membranes covering the spinal cord.

inflammation of the arachnoid membrane that covers the spinal cord.

A disease where dense scar tissue forms around the nerves of the spine causing symptom such as burning pain, pins and needles, numbness and weakness.

Inflammation resulting in adherence of nerve rootlets within the spinal cord covering. This is most often associated with failed-back syndrome.

This disease occurs when the membrane that is in direct contact with the spinal fluid becomes inflamed. This inflammation causes pain by pressing on the nerves. Doctors are unclear about what causes this condition. Arachnoiditis may be successfully treated with either APT Neurostimulation or APT Intrathecal. More about Medtronic Pain Therapies .

Inflammation of the middle (arachnoid mater) of 3 linings of the spinal cord and the subarachnoid space containing the cerebrospinal fluid.

Arachnoiditis describes a neuropathic disease caused by the inflammation of the arachnoid, one of the membranes that surround and protect the nerves of the spinal cord. The arachnoid can become inflamed because of an irritation from chemicals, infection from bacteria or viruses, as the result of direct injury to the spine, chronic compression of spinal nerves, or complications from spinal surgery or other invasive spinal procedures. Inflammation can sometimes lead to the formation of scar tissue and adhesions, which cause the spinal nerves to "stick" together.