Question

which features define lumbar spinal stenosis diagnosis?
saddle anesthesia, bladder dysfunction
bilateral leg pain, relieved by sitting
acute pain, unilateral numbness
chronic pain, no leg symptoms
view hint for question 36

Explanation:

Lumbar spinal stenosis involves narrowing of the lumbar spinal canal, which compresses nerves. A key hallmark is neurogenic claudication: bilateral leg pain (or discomfort) that worsens with standing/walking and is relieved by sitting (which reduces spinal canal pressure). Saddle anesthesia and bladder dysfunction are signs of cauda equina syndrome, not typical stenosis. Acute unilateral symptoms and chronic pain without leg issues do not match the classic presentation of lumbar spinal stenosis.

Answer:

Bilateral leg pain, relieved by sitting