Instability

The upper extremity symptom of cervical spondylosis is instability. Cervical spondylosis, also known as cervical syndrome, is a general term for cervical osteoarthritis, proliferative cervical spondylitis, cervical nerve root syndrome, and cervical disc herniation. It is a disease based on degenerative pathological changes. Mainly due to long-term cervical strain, bone hyperplasia, or disc herniation, thickening of ligaments, resulting in compression of the cervical spinal cord, nerve root or vertebral artery, a series of clinical syndromes of dysfunction. It is manifested by cervical disc degeneration itself and its secondary series of pathological changes, such as vertebral instability and loosening; nucleus pulposus or prolapse; bone spur formation; ligament hypertrophy and secondary spinal stenosis, which stimulate or compress Nervous roots, spinal cords, vertebral arteries, and cervical sympathetic nerves cause various symptoms and signs of the syndrome.