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  • Title: Surgical and nonsurgical management of sciatica secondary to a lumbar disc herniation: five-year outcomes from the Maine Lumbar Spine Study.
    Author: Atlas SJ, Keller RB, Chang Y, Deyo RA, Singer DE.
    Journal: Spine (Phila Pa 1976); 2001 May 15; 26(10):1179-87. PubMed ID: 11413434.
    Abstract:
    STUDY DESIGN: A prospective cohort study. OBJECTIVE: To assess 5-year outcomes for patients with sciatica caused by a lumbar disc herniation treated surgically or nonsurgically. SUMMARY OF BACKGROUND DATA: There is limited knowledge about long-term treatment outcomes of sciatica caused by a lumbar disc herniation, particularly the relative benefits of surgical and conservative therapy in contemporary clinical practice. METHODS: Eligible, consenting patients recruited from the practices of orthopedic surgeons, neurosurgeons, and occupational medicine physicians throughout Maine had baseline interviews with mailed follow-up questionnaires at 3, 6, and 12 months and annually thereafter. Clinical data were obtained at baseline from a physician questionnaire. Outcomes included patient-reported symptoms of leg and back pain, functional status, satisfaction, and employment and compensation status. RESULTS: Of 507 patients initially enrolled, 5-year outcomes were available for 402 (79.3%) patients: 220 (80%) treated surgically and 182 (78.4%) treated nonsurgically. Surgically treated patients had worse baseline symptoms and functional status than those initially treated nonsurgically. By 5 years 19% of surgical patients had undergone at least one additional lumbar spine operation, and 16% of nonsurgical patients had opted for at least one lumbar spine operation. Overall, patients treated initially with surgery reported better outcomes. At the 5-year follow-up, 70% of patients initially treated surgically reported improvement in their predominant symptom (back or leg pain) versus 56% of those initially treated nonsurgically (P < 0.001). Similarly, a larger proportion of surgical patients reported satisfaction with their current status (63% vs. 46%, P < 0.001). These differences persisted after adjustment for other determinants of outcome. The relative advantage of surgery was greatest early in follow-up and narrowed over 5 years. There was no difference in the proportion of patients receiving disability compensation at the 5-year follow-up. The least symptomatic patients at baseline did well regardless of initial treatment, although function improved more in the surgical group. CONCLUSIONS: For patients with moderate or severe sciatica, surgical treatment was associated with greater improvement than nonsurgical treatment at 5 years. However, patients treated surgically were as likely to be receiving disability compensation, and the relative benefit of surgery decreased over time.
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