Cervical and thoracic disk diseases causing radicular syndromes and their treatment

1. Big picture

Cervical and thoracic disk diseases are important because they may produce radicular syndromes, meaning pain and neurological signs caused by compression or irritation of a spinal nerve root.

For the exam, you must recognize three things:

Radicular pain pattern — sharp, shooting, severe, provoked, follows a dermatome.
Root-level neurological deficit — sensory loss, reduced reflex, weakness in a myotomal pattern.
Dangerous spinal cord compression — cervical/thoracic disk disease may cause myelopathy, which is more urgent than simple radiculopathy.

The key clinical distinction is:

Syndrome	Main lesion	Main signs
Cervical radiculopathy	Cervical nerve root	Neck pain radiating to arm, dermatomal sensory loss, reduced reflex, myotomal weakness
Cervical myelopathy	Cervical spinal cord	Spastic gait, hyperreflexia, Babinski, hand clumsiness, sensory level, bladder symptoms
Thoracic radiculopathy	Thoracic nerve root	Band-like chest/abdominal pain in a thoracic dermatome
Thoracic myelopathy	Thoracic spinal cord	Sensory level, spastic paraparesis, bladder/bowel disturbance

1. Big picture

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