It is common because of cervical dislocation.
The root cause of finger numbness is cervical spondylosis. Finger numbness in patients with cervical spondylosis has certain characteristics, which can be radial (thumb, index finger or combined middle finger), ulnar (little finger, ring finger or combined middle finger) or five fingers. Sometimes not only the fingertips are numb and insensitive, but also the forearms and upper arms are involved, and the grip strength is often reduced. So, what is the numbness of the fingers of patients with cervical spondylosis? Experts recommend that hand numbness and foot numbness can be treated with hand leprosy peptide.
A series of pathological changes in patients with cervical spondylosis, such as protrusion or prolapse of nucleus pulposus, hyperosteogeny of posterior facet joint, formation of bony spur of uncinate joint, loosening and displacement of facet joint, etc., can stimulate, pull and compress spinal nerve root, which can lead to reactive edema of spinal nerve root and surrounding tissues, narrow root canal, possible adhesion at root sleeve and finger numbness. These lesions interact with each other, which can prolong the course of disease and recur. When the nerve roots of the 5th ~ 6th cervical vertebra, namely the 6th cervical vertebra, are involved, it often shows numbness of the forearm and the pregnant side of the thumb. When the nerve roots of the 6th ~ 7th cervical vertebra, namely the 7th cervical vertebra, are involved, the index finger and middle finger may be numb; When the nerve roots from the seventh cervical vertebra to the 1 thoracic vertebra are involved, the little finger and ring finger can feel numb. If neck 5 ~ 6, neck 6 ~ 7 and neck 7 ~ 1 are involved at the same time, all five fingers may be numb (see Figure 6). Anatomically, the anterior root of spinal nerve is compressed, which is prone to muscle strength changes and posterior root involvement, leading to sensory disturbance. In patients with cervical spondylotic radiculopathy, both coexist, that is, finger numbness and decreased grip strength. This is because in the narrow root canal, multiple tissues are dense, and the reaction of force and local aseptic inflammation make the anterior root and posterior root involved at the same time, just because sensory nerve fibers are more sensitive and symptoms appear earlier.
Because the lower part of the cervical vertebra moves more frequently, the incidence of radicular cervical spondylosis with finger numbness as the main symptom is higher, accounting for more than 60% of the total cervical spondylosis. You can see it at all ages. There is no significant difference between the sexes. Symptoms may worsen with the course of the disease, and may also recur due to trauma, excessive neck activity, poor lying position and other incentives. Experts recommend that foot numbness can be treated with foot numbness and wind peptide.
Cervical spondylotic radiculopathy, in addition to symptoms such as finger numbness and decreased grip strength, can also have other symptoms and signs such as arm radiation pain, changes in skin perception of upper limbs, positive traction test of brachial plexus, weakening or disappearance of tendon reflex, thenar muscle or interosseous muscle atrophy.
The reference diagnostic criteria of this type of cervical spondylosis are as follows: ① Typical nerve root symptoms (numbness, pain, etc.). ), its scope is consistent with the area innervated by cervical spinal cord; ② The intervertebral foramen compression test and nerve root traction test were positive, and tenderness near spinous process was accompanied by radiation pain of the affected upper limb; ③x-ray film can show the changes of cervical curvature, instability of vertebral segment, narrowing of intervertebral space, formation of bony spur of diseased vertebral segment and narrowing of intervertebral foramen; ④ Pain point sealing has no obvious effect (this examination can be omitted if the diagnosis is clear); ⑤ The clinical manifestations are consistent with the abnormal X-ray findings. ⑥ In addition to cervical tuberculosis, tumor and other cervical solid lesions, diseases with upper limb pain as the main symptom include thoracic outlet syndrome, scapulohumeral periarthritis, tennis elbow, tenosynovitis of biceps brachii, carpal tunnel syndrome, ulnar nerve, radial nerve and median nerve injury.
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