Patient Information Resources


Long Island Spine Specialists, P.C.
763 Larkfield Road
2nd Floor
Commack, NY 11725
Ph: (631) 462-2225
Fax: (631) 462-2240






Child Orthopedics
General
Pain Management
Spine - Cervical
Spine - General
Spine - Lumbar
Spine - Thoracic

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I just received a prescription for an antidepressant to treat my back and leg pain. What's the rationale for this kind of treatment? How is an antidepressant going to take away my leg pain?

Back pain that travels down the leg can be caused by nerve root compression or from changes in the joint and nearby soft tissue structures. In the case of nerve root pressure, the pain is considered as coming from a neuropathic source. With true neuropathic leg pain, the symptoms go down the leg past the knee.

Pain referred from the spinal joint is called nociceptive. Nociceptive pain occurs when receptors in and around the joint are stimulated. This sends a message of unpleasant stimuli up the spinal cord to the brain. The brain signals back pain that can go down the leg but doesn't go below the knee.

Neuropathic and nociceptive pain responds to drug treatment differently. Nociceptive pain is sensitive to nonsteroidal antiinflammatory drugs (NSAIDs). Neuropathic pain is more likely to respond to antidepressants and anticonvulsants (seizure medication).

The chemical pathway for the pain is different between nociceptive and neuropathic pain. The mechanism of these drugs is based on these chemical pathways and affects them differently. Finding the source of back and leg pain is important so the right treatment approach can be applied. Sometimes it's a matter of trial and error before the right drug is prescribed for the specific problem.


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