Dr. Ebraheim's animated educational video describes Neck Pain, Cervical Disc Herniation & Cervical Radiculopathy.
Cervical disc herniation occurs most frequently at the level C6-C7. It can occur at C5-C6.
The patient will complain of neck pain due to nerve root irritation with pain radiating to the ipsilateral upper extremity. The patient may complain of numbness, paresthesia and weakness. Coughing, sneezing and neck movements make the pain worse.
Careful examination of the patient is important. Each nerve involves ed will show its effect on the motor power, sensation and reflexes.
Herniated disc C3-C4 bulge (affects C4 nerve root)
•C4 sensory deficit around the shoulder area.
•The diaphragm is supplied largely by C4, could affect the respiratory system.
Herniated disc C4-C5 bulge ( affects nerve root C5)
•Sensory C5: affects sensation around the shoulder area.
•C5 biceps reflex is primarily C5.
•Motor: deltoid C5, C5-C6 elbow flexion
Herniated disc C5-C6 bulge ( affects nerve root C6)
•Sensory C6: affects sensation in the index finger and the thumb.
•C6: brachioradialis reflex
•Motor: C6 wrist extension (Extensor carpi radialis longus & brevis), C5,C6 biceps: elbow flexion.
Herniated disc C6-C7 bulge ( affects nerve root C7)
•Sensory: affects the area of the middle finger.
•Motor C7: elbow extension (triceps), wrist flexion, finger extension.
•Reflexes C7: triceps reflex
Herniated disc C7-T1 bulge ( affects nerve root C8)
•Sensory C8: affects the area of the medial two fingers and the medial part of the forearm.
•Motor: C8 finger flexion
•No reflexes
Herniated disc T1-T2 bulge ( affects nerve root T1)
•Sensory T1
•T1 interossei muscles (abduction & adduction), the patient will not be able to spread the fingers or bring them closer together.
•No reflexes
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