In most cases, cervical spondylosis results in muscle atrophy due to nerve compression, which can lead to thin arms. Cervical spondylosis causing arm thinning is commonly seen in nerve root cervical spondylosis and spinal cord cervical spondylosis.
Neurogenic cervical spondylosis is usually caused by the compression of intervertebral discs and hook vertebral joints on the nerve roots, which can lead to symptoms such as decreased muscle strength of the upper limbs and inflexible finger movements. If the condition worsens and severe neurological dysfunction occurs, the muscles will atrophy due to malnutrition and show thin arms.
Spinal cord cervical spondylosis is due to the degenerative structures of the cervical vertebrae compressing the spinal cord and the blood vessels supplying the spinal cord, and symptoms such as numbness and weakness of the limbs and the feeling of stepping on cotton in both feet may occur. Spinal cord injury can affect the supply of nutrients to the neurovascular vessels of the limbs, which in turn leads to muscle atrophy and the phenomenon of thin arms.
In addition to cervical spondylosis, long-term immobilization due to trauma, tumors, etc. may also cause muscle atrophy. If cervical spondylosis exists, it is recommended to seek medical treatment as soon as possible, and carry out standardized and personalized treatment under the guidance of the doctor, so as to avoid aggravation of the condition and irreversible damage.