A 68-year-old patient with symptomatic lumbar spinal stenosis has undergone 6 months of conservative management, including physical therapy, NSAIDs, and epidural steroid injections, with minimal improvement in his neurogenic claudication and quality of life. He reports increasing difficulty walking more than 50 meters. Which of the following is the most appropriate next step in management?

Explanation

For patients with symptomatic lumbar spinal stenosis who have failed an adequate trial (typically 3-6 months) of conservative management and continue to experience significant functional limitations due to neurogenic claudication, surgical decompression (such as a laminectomy or laminotomy) is generally indicated. The goal of surgery is to relieve pressure on the neural elements. Continuing conservative management with different modalities (option A) is less likely to be effective after 6 months of failed treatment. Prescribing stronger opioid analgesics (option C) is not a definitive treatment for the underlying mechanical compression and carries risks of dependence and side effects. A lumbar brace (option D) might offer some temporary support but does not address the neural compression and is not a primary treatment for failed conservative management.