Clinical presentation of lower cervical radiculopathies
| Signs | ||||
|---|---|---|---|---|
| Nerve root (disc level) | Symptoms | Motor weakness | Diminished reflexes | Sensory disturbance |
| C5 (C4/C5) | Pain from side of neck to shoulder. Numbness over deltoid | Deltoid | Biceps | Shoulder and lateral arm |
| C6 (C5/C6) | Pain over lateral arm and forearm. Sensory disturbance in lateral forearm, thumb and index finger | Biceps and brachioradialis | Biceps and supinator | Lateral forearm, hand and thumb |
| C7 (C6/C7) | Pain radiating down middle forearm to middle and sometimes ring finger. Sensory disturbance of middle finger | Elbow, wrist and finger extensors | Triceps | Predominantly middle finger |
| C8 (C7/T1) | Pain radiating to medial forearm and hand. Sensory disturbance medial border hand, ring and little finger | Hand grip and intrinsic muscles | Medial hand and little and ring finger | |