v4.1 Fusion X
Degenerative stenosis from disc bulge, facet arthrosis, and ligamentum flavum hypertrophy causes neurogenic claudication. MRI confirms stenosis; correlate with walking tolerance and posture‑dependent symptoms (relief on flexion). Nonoperative: activity modification, PT (flexion‑based), analgesia; limited role for epidural steroid injections. Decompression alone (unroofing/undercutting) suffices when there is no instability; add fusion for instability/deformity or wide facetectomy. MIS options (microlaminotomy, bilateral decompression via unilateral approach, endoscopic) reduce morbidity with comparable outcomes in selected patients.
What is the most common cause of lumbar spinal stenosis in patients over 65 years of age?
Which of the following is a characteristic symptom of neurogenic claudication?
What is the typical MRI finding in a patient with lumbar spinal stenosis?
Which decompression technique is appropriate for lumbar spinal stenosis without instability?
Which of the following nonoperative treatments has a limited role in lumbar spinal stenosis?
What is the primary mechanism by which lumbar flexion improves symptoms in neurogenic claudication?
In which scenario would spinal fusion be indicated in a patient with lumbar spinal stenosis?
Which minimally invasive surgical option for lumbar spinal stenosis reduces morbidity with comparable outcomes?
Which clinical feature helps differentiate neurogenic claudication from vascular claudication?
During which activity do patients with lumbar spinal stenosis typically experience symptom relief?