What it is
Cervical radiculopathy results from compression or irritation of a nerve root as it exits the spinal canal in the neck. The most common causes are a soft disc herniation (more common in younger patients) or a bony osteophyte narrowing the foramen (more common in older patients). The affected nerve root determines the exact pattern of arm pain, numbness, and weakness — a C6 compression, for instance, causes symptoms along the thumb and index finger.