Ebo

almost 7 years ago

The straight leg raise, also called Lasègue's sign, Lasègue test or Lazarević's sign, is a test done during a physical examination to determine whether a patient with low back pain has an underlying herniated disc, often located at L5.

Ebo

almost 7 years ago

With the patient lying down on his or her back on an examination table or exam floor, the examiner lifts the patient's leg while the knee is straight.

Ebo

almost 7 years ago

If the patient experiences sciatic pain when the straight leg is at an angle of between 30 and 70 degrees, then the test is positive and a herniated disk is a possible cause of the pain. A negative test suggests a likely different cause for back pain.