Spinal nerve root damage

Introduction Spinal nerve root damage is caused by a variety of causes of spinal nerve root inflammatory and degenerative diseases. The lesion can invade the neck, chest, and waist. The spinal nerve root of any segment. Clinically, cervical and thoracic nerve roots and lumbosacral nerves are most often involved, causing shoulder and back pain and low back pain.

Cause

(1) Crush injury: The degree of damage is related to factors such as the size, speed, compression range and length of the pressing force. The lighter only causes temporary conduction disorder of the nerve. In severe cases, the nerve fibers can be broken, causing signal conduction interruption and degeneration of the distal nerve. According to different crushing factors, it can be divided into exogenous and endogenous. The former is caused by external compression, and the latter is crushed by tissue in the body.

(2) traction injury: more common in traffic accidents, such as centrifugal traction caused by limbs caused by nerve laceration. The lighter can pull off the nerve bundle and vascular bundle in the nerve trunk, so that the nerve trunk is hemorrhage, and finally scarred; in severe cases, the nerve trunk can be completely torn off or avulsed from the nerve root, such as brachial plexus root injury. Therefore, the traction injury generally causes the information channel to break and the signal conduction is also interrupted.

(3) Friction injury: The nerve bypasses the bone process and the nerve groove can cause chronic friction injury. It is characterized by thickening of the epicardium or nerve thinning, which can lead to scar formation over a long period of time, resulting in narrowing of the channel, impeded signal transmission, or incomplete signal transmission.

an examination

Related inspection

Molybdenum target X-ray examination brachial plexus pull test

The onset can be urgent. Often infected. Poisoned. Nutritional metabolic disorders. Spinal disease. Paravertebral muscle trauma and inflammation. A history of transverse trauma and other injuries. There is radioactive numbness within the inner root of the damaged nerve root. pain. Such as thoracic radiculitis caused by intercostal neuralgia; cervical thoracic radiculitis has shoulder and neck to the upper limb ulnar or temporal pain, lumbosacral radiculitis manifested from the lumbosacral to the lower limbs or (and) lateral and foot Pain and so on. Often due to cold.

cough. Defecation or the like induces or aggravates the symptoms. In the area of the affected root root distribution. Different degrees of lower motor neuron spasm: muscle weakness. Muscle atrophy. Reflection decreases or disappears. For example, the symptoms of cervical and thoracic nerve roots occur in the scapular and upper limbs; the symptoms of lumbosacral nerve roots are found in the lower limbs. The sacral nerve root damage is heavier and there is a loss of bladder and sexual dysfunction. When the lesion involves the arachnoid, it is called meningeal-nerveitis. If the spinal cord is involved at the same time, it is called spinal cord-meningo-nerradine. It can produce symptoms of spinal arachnoid inflammation. There are symptoms and signs of the cause of the primary disease.

Differential diagnosis

1. Cervical spondylosis: Symptoms are similar to cervical and thoracic radiculitis. But it is more common in middle-aged and older people. May have dizziness or spinal cord involvement. Sniper the top of the head or pressurize the neck from the top of the head. Can cause upper limb pain aggravation (Spurling sign). Cervical bone hyperplasia can be seen by cervical spinal X-ray or CT examination. The intervertebral foramen stenosis or spurs extend into it. Intervertebral disc degeneration and other changes. Treatment such as cervical traction can reduce symptoms.

2. Cervical spinal cord tumor: slow onset. Progressive increase. Early signs are often more limited. The root symptoms are more prominent. Lumbar puncture can show subarachnoid obstruction. Cerebrospinal fluid protein is increased quantitatively. The number of cells is often normal. In the myelography, the flow of the contrast agent was blocked and the filling defect was observed.

3. Brachial plexus neuritis: more common in adults. Acute or subacute onset. The pain site is often on one side of the supraclavicular fossa or shoulder. Gradually expand to the same side of the upper arm. Forearm and hand. The ulnar side is even worse. The brachial plexus (where the supraclavicular fossa) has tenderness. Pain can be induced or aggravated when the upper limb is pulled.

4. Thoracic outlet syndrome: mainly by neck ribs. Anterior medial scalene lesions and rib or clavicle deformities. Local lumps are pressed and so on. It is manifested as a compression symptom of the upper limb nerves and blood vessels. Radioactive pain in the affected limb occurs when the nerve is compressed. The subclavian artery is compressed and the skin of the hand is pale. It is cool. There are even Renault phenomena. When the affected limb is overextended and abducted. The brachial artery pulsation weakens or even disappears.

The material in this site is intended to be of general informational use and is not intended to constitute medical advice, probable diagnosis, or recommended treatments.