Question

what features characterize lumbar spinal stenosis in older adults? unilateral leg pain, worse with sitting saddle anesthesia, urinary retention acute back pain, no leg involvement bilateral leg pain, worse with standing/walking view hint for question 29

Explanation:

Lumbar spinal stenosis in older adults typically involves narrowing of the spinal canal that compresses nerves. Bilateral leg pain (neurogenic claudication) that worsens with standing/walking is a key feature, as these positions increase spinal canal narrowing. Unilateral pain with sitting, saddle anesthesia with urinary retention, and isolated acute back pain do not match the classic presentation.

Answer:

Bilateral leg pain, worse with standing/walking