Spinal stenosis is a narrowing of t...

Spinal stenosis is a narrowing of the vertebral canal. Approximately 12 million folks in the United States have back and leg pain that is related to spinal. (1) The narrowing of the vertebral canal may lead to compression of the spinal firmnesss or nerve roots, especially in the area of the lumbar vertebrae. (23)

Degenerative lumbar stenosis is habitual in elderly adults; bony overgrowth and ligament enlargement into the spinal canal, intervertebral disc herniation, or vertebral slippage (spondylolisthesis) may be responsible for steadiness compression. This compression results in reasonable back pain, leg fatigue and pain, and reduc capacity for physical activity.

Neurogenic claudication describes a combination of soft back pain, leg pain, numbnes and motor weakness that starts or intensifies upon standing or walking and is eased by means of sit-ting or lying down. Although symptomatic stenosis involves a degree of neurogenic claudication, not all patients with lumbar spinal stenosis are symptomatic or exhibit neurogenic claudication.

Symptoms of lumbar spinal stenosis may be categorized as mild, moderate, or bitter based on the extent of leg pain and pain-related disability. (45) Patients with hard symptoms have exercise intolerance and greatly restricted walking capacity, and may have bladder dysfunction (i.e., urinary incontinence). (36) Conservative treatment with pain-relieving agents assumes to be the natural choice when symptoms are mild. (35) Decompressive surgery to transport the bone and ligaments around the stenosis usually is approveed for patients with severe symptoms when conservative therapy has not provided adequate pain relief. (35) Patients with moderate symptoms fall into a gray girth in which the most appropriate treatment is not obvious. (7)

This article reviews the evidence for conservative and surgical treatments for degenerative lumbar spinal stenosis. A detailed discussion of the anatomy, pathophysiology, clinical history, physical examination, and differential diagnosis of lumbar spinal stenosis has appeared in American Family Physician. (3)

Our systematic review of the evidence revealed question s with study design and quality. These point to be solved [i]or[/i] settleds complicated the literature assessment for conservative and surgical interventions. However, any important findings from the better studies were identified and are summarized in Table 1 (4-12) Our findings should be viewed as showing potential relationships between treatments, patient characteristics, and treatment consequences Definitive evidence-based conclusions about the efficacy of conservative or surgical treatments for lumbar spinal stenosis await the eventuates of well-designed clinical trials.

Data Sources

Candidate studies for inclusion in this review were identified through searching 25 bibliographic databases (including MEDLINE, Embase, the Cochrane Database of Systematic Reviews, CRISP, and CINAHL) as part of a systematic review beged by the Agency for Healthcare Research and Quality. Search dates spanned from database inception between the sides of May 2000 and were updated between the walls of March 2003 for this article. Search names included spinal stenosis, lumbar stenosis, sciatica, backache, spinal disease, neurogenic claudication, hardihood root entrapment, nerve root compression, and spondylosis. Controll trials of conservative treatments were included, as were any clinical studies of surgical treatment, regard-less of studious mood design. All reviewed studies recorded 10 or more patients.

Treatment for Mild Symptoms

single randomized placebo-controlled trial (8) examined the results of epidural steroid injections and a local anesthetic in succession neurogenic claudication. The results of this reflection suggest that the local anesthetic mepivacaine bring tos symptoms and increases walking distance in the short-term, further effects last for no more than individual month. Epidural steroids offer no additional benefit to the weights of the anesthetic block. (8) [Evidence flat B, good-quality randomized controlled trial (RCT)]

Treatment for Moderate Symptoms

In patients with moderate symptoms, surgery may be more beneficial than conservative therapy. The Maine Lumbar Spine Study) (4) (a prospective, observational cohort study) contained a subgroup of patients with moderate symptoms (31 patients underwent surgery and 23 were treated with bed ease physical therapy, exercise, braces, traction, transcutaneous electrical coolness stimulation [TENS], spinal manipulation, narcotic analgesics, or epidural steroids). The patients who had surgery showed significantly better improvement, suggesting that surgery may be more beneficial than conservative treatment in patients with moderate pain. (4) [Evidence on a level B, clinical cohort study] After four years of follow-up the consequences continued to be better in patients who had moderate pain initially and underwent surgery (9) [Evidence horizontal B, clinical cohort study]

Randomization of patients to surgical or conservative treatment was considered ethical in brace trials (5,7) where treatment was look uponed appropriate for patients with moderate symptoms. In the first trial, (7) 44 patients with mild to moderate leg pain were randomized to receive conservative treatment (i.e., back braces, physical therapy, and exercise programs) or surgery Although the pair treatment groups showed clinically and statistically significant improvement undivided year after treatment, only the surgery clump continued to show improvement after sum of two units years. [Evidence level B, good-quality RCT]