LBP with Radiating Pain

Question 1

Pain perceived in regions innervated by nerves other than those that innervate the site of noxious stimulation

Answer 1

somatic referred pain

Question 2

With somatic referred pain, nerve roots aren’t involved, but the areas often share the same

Answer 2

segmental innervation

Question 3

Occurs due to convergence of multiple afferents on 2nd order neurons in the dorsal horn

Answer 3

somatic referred pain

Question 4

What are the presenting features of somatic referred pain

Answer 4

• vague dull, aching, or gnawing pain
• difficult to localize
• NO dermatomal pattern

Question 5

Pain caused by ectopic discharge of a nerve root - typically involving the dorsal root or DRG

Answer 5

radicular pain

Question 6

With this type of pain, think chemical irritation, rather than pure mechanical compression, but these often co-exist

Answer 6

radicular pain

Question 7

What are the presenting features of radicular pain?

Answer 7

• distinctive lancinating, electric, shocking, or burning pain
• easily localized
• follows a dermatomal pattern

Question 8

May often co-exist with radicular pain, but either may be present independently of the other

Answer 8

radiculopathy