How do spinal canal cysts, tumors, and hemorrhages cause cauda equina nerve damage?

Spinal canal tumors are one of the important causes of compression of the spinal cord and cauda equina nerve, including tumors that develop in the conus medullaris segment between the spinal canal and the cauda equina. Primary spinal canal tumors occur per 100,000 population per year. The incidence of men and women is similar, meningioma is more common in women, ependymoma is more common in men, and the incidence of thoracic spinal cord is higher.

When the spinal canal gradually enlarges and squeezes the spinal cord and cauda equina nerve, it will combine many symptoms and characteristics of cauda equina syndrome, and the same is true for cysts or tumors that grow in the body, and complications arise due to compression or damage to the cauda equina nerve caused by compression. In the case of cysts in the lumbar and sacral segments, cauda equina syndrome will immediately occur if the nerve is compressed. The only effective way to remove spinal canal tumors is surgical resection, but during surgery, more nerve fibers may inevitably be damaged when the tumor is removed, and its sequelae will also produce the characteristic manifestations of cauda equina syndrome.

The spinal canal cyst tumor bleeds, resulting in cauda equina nerve damage, because the position below the waist is unable to move and is very painful.

Most of this kind of injury is caused by fractures caused by various factors or compression of tumors and cysts in the body, and there is also any type of surgical error around the cauda equina nerve caused by iatrogenic anti-factors.

The cauda equina nerve injury caused by spinal cyst surgery is because the cyst of the sacral duct in some patients already contains nerve root fibers, that is, spinal nerve roots, also known as cauda equina nerve.

If the neuraxial cyst is severe, it may compress the cauda equina nerve, causing the cauda equina nerve to compress and produce a series of symptoms.

Of course, not all sacral duct cysts are symptomatic, and most patients with epidural meningeal cysts that do not include the cauda equina nerve are asymptomatic; Only a small subset of patients with epidural meningeal cysts containing cauda equina nerve roots are symptomatic.

Because the cauda equina nerve is located below the conus medullaris, from L2 to S5 and ends at the coccyx, the cauda equina nerve root exits from the sacral foramen, and if the cyst of the sacral canal compresses the cauda equina nerve root, it is natural for the patient to develop the characteristics of cauda equina syndrome. For example, we often talk about backache, hips, saddle area, sacrococcygeal and lower limb pain, numbness, weakness, muscle strength decline, and even abnormal urine and urine and sexual dysfunction in severe cases. Depending on the degree of compression, the symptoms presented by the patient are also differentiated.

There are two types of cauda equina nerve injury, one is complete irreversible damage and the other is incomplete reversible damage. The former means that there is no complete recovery, while the latter has the potential to recover completely. Therefore, it is particularly important that some patients can recover completely.

In addition, to a certain extent, the cauda equina nerve in our sacral canal is difficult to be damaged, and once damaged, its symptoms will greatly affect our work and even life.

Neuraxial cysts are less likely to cause cauda equina nerve damage than patients with lumbar disc herniation, but they are also a relatively common type. Generally, mild cysts do not require surgery**, and preoperative diagnosis is difficult and easy to misdiagnose. However, if the body begins to show some disease characteristics, it is necessary to seek medical attention in time, and surgery is still needed to intervene when the symptoms reach the indication for surgery.

How to find spinal canal cysts, to avoid the condition to the point of deterioration to the point that surgery is needed, as far as possible to curb the occurrence and development of the disease, and surgery is also accompanied by certain risks, many patients cause cauda equina nerve damage after surgery, and even lead to complete or incomplete paralysis. So the key to the correct differential diagnosis of spinal cyst is to recognize the characteristics of the disease

1. Neuraxial cysts are benign lesions, with slow growth and long course of disease, and symptoms may have intermediate remission;

2. Because the fluid in the cyst can transmit pressure, the Quiken's test shows that there is no obstruction or incomplete obstruction of the subarachnoid space;

3. The cyst is an expansive lesion, and the spinal canal detachment in the lesion area can be seen on the X-ray plain film of the spine, the pedicle is thinned, and the pedicle spacing is widened

4. During neuraxography, if the contrast medium enters the most swollen or enters the paravertebral to show a pouch-like shadow, the diagnosis of neuraxial arachnoid cyst can be confirmed. MRI is superior to spinal canal imaging and other imaging tests for diagnosing the nature and extent of neuraxial lesions.