Peripheral Nerve Conditions

Anatomical Classification

The American College of Physicians and American Pain Society explicitly define sciatica as "the most common symptom of lumbar radiculopathy" in their joint clinical practice guideline 1
Sciatica represents pain radiating down the leg below the knee in the distribution of the sciatic nerve, suggesting nerve root compromise due to mechanical pressure or inflammation 1

The American Society of Anesthesiologists' 2018 Practice Advisory for Prevention of Perioperative Peripheral Neuropathies includes extensive sections on sciatic neuropathy prevention, placing it alongside other recognized peripheral neuropathies like ulnar, radial, and femoral neuropathies 2
The ASA guidelines note that "the sciatic nerve or its branches cross both the hip and the knee joints" when discussing positioning strategies to prevent perioperative sciatic neuropathy 2