A "hard" positive test suggests + sciatic nerve irritation + L4-S1 nerve root radiculitis -Other causes: + lumbar disc herniation + tumor + spinal canal stenosis + encroachment by spurring or osteophytes 2. focal point of pain in the leg or pelvis Positive Test Indicates: 1. ![]() ![]() no pain at all or only pain in back or to buttocks 4. pain radiating into lower extremity but not past knee (soft positive) 3. ![]() sharp, burning, electrical pain radiating past the knee with hip flexion between 35 and 70 degrees (hard positive) 2. ![]() * A nerve tension test used to rule out sciatica or L4-S1 nerve root irritation How to Perform: -Supine -You place one hand under the patient's heel and the other over the knee to keep the leg straight -You passively raise the patient's leg from the table, holding the knee straight (extended) until the onset of pain -You note the angle at which the onset of pain occurs as well as the location, quality, & magnitude of the pain Positive Test: 1.
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