Surgical versus nonoperative treatment for lumbar disc herniation: eight-year results for the spine patient outcomes research trial.
Surgical versus nonoperative treatment for lumbar disc herniation: eight-year results for the spine patient outcomes research trial.
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DOI:
10.1097/brs.0000000000000088
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发表时间:
2014-01-01
期刊:
影响因子:
3
通讯作者:
Weinstein JN
中科院分区:
文献类型:
--
作者:
Lurie JD;Tosteson TD;Tosteson AN;Zhao W;Morgan TS;Abdu WA;Herkowitz H;Weinstein JN
Concurrent prospective randomized and observational cohort studies. To assess the 8-year outcomes of surgery vs. non-operative care. Although randomized trials have demonstrated small short-term differences in favor of surgery, long-term outcomes comparing surgical to non-operative treatment remain controversial. Surgical candidates with imaging-confirmed lumbar intervertebral disc herniation meeting SPORT eligibility criteria enrolled into prospective randomized (501 participants) and observational cohorts (743 participants) at 13 spine clinics in 11 US states. Interventions were standard open discectomy versus usual non-operative care. Main outcome measures were changes from baseline in the SF-36 Bodily Pain (BP) and Physical Function (PF) scales and the modified Oswestry Disability Index (ODI - AAOS/Modems version) assessed at 6 weeks, 3 and 6 months, and annually thereafter. Advantages were seen for surgery in intent-to-treat analyses for the randomized cohort for all primary and secondary outcomes other than work status; however, with extensive non-adherence to treatment assignment (49% patients assigned to non-operative therapy receiving surgery versus 60% of patients assigned to surgery) these observed effects were relatively small and not statistically significant for primary outcomes (BP, PF, ODI). Importantly, the overall comparison of secondary outcomes was significantly greater with surgery in the intent-to-treat analysis (sciatica bothersomeness [p > 0.005], satisfaction with symptoms [p > 0.013], and self-rated improvement [p > 0.013]) in long-term follow-up. An as-treated analysis showed clinically meaningful surgical treatment effects for primary outcome measures (mean change Surgery vs. Non-operative; treatment effect; 95% CI): BP (45.3 vs. 34.4; 10.9; 7.7 to 14); PF (42.2 vs. 31.5; 10.6; 7.7 to 13.5) and ODI (−36.2 vs. −24.8; −11.2; −13.6 to −9.1). Carefully selected patients who underwent surgery for a lumbar disc herniation achieved greater improvement than non-operatively treated patients; there was little to no degradation of outcomes in either group (operative and non-operative) from 4 to 8 years.