SPINE
Surgery versus Prolonged Conservative Treatment for Sciatica
This report has been verified
by one or more authors of the
original publication.
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OrthoEvidence Journal (OE Journal) - ACE Report
OE Journal. 2013;1(11):249 N Engl J Med. 2007 May 31;356(22):2245-56Exclusive Author Interview
Dr. Wilco Peul discusses early surgery versus prolonged conservative treatment for sciatica.
283 patients with disc herniation and resulting sciatica were randomized to either receive early surgery or prolonged conservative treatment for 6 months (followed by surgery if needed). The results indicated that for both groups, similar outcomes were observed at the one year follow up period. However it is important to note that those in the early surgery group demonstrated faster rate of pain relief and perceived recovery, and thus may render this treatment method a valid and supported option.
Was the allocation sequence adequately generated?
Was allocation adequately concealed?
Blinding Treatment Providers: Was knowledge of the allocated interventions adequately prevented?
Blinding Outcome Assessors: Was knowledge of the allocated interventions adequately prevented?
Blinding Patients: Was knowledge of the allocated interventions adequately prevented?
Was loss to follow-up (missing outcome data) infrequent?
Are reports of the study free of suggestion of selective outcome reporting?
Were outcomes objective, patient-important and assessed in a manner to limit bias (ie. duplicate assessors, Independent assessors)?
Was the sample size sufficiently large to assure a balance of prognosis and sufficiently large number of outcome events?
Was investigator expertise/experience with both treatment and control techniques likely the same (ie.were criteria for surgeon participation/expertise provided)?
はい = 1
不確実=0.5
無関係 = 0
いいえ = 0
報告基準評価では、著者が出版物内で試験の方法論的特徴や試験特性を報告する際の透明性を評価します。評価は以下の5つのカテゴリーに分類されます。
3/4
Randomization
2/4
Outcome Measurements
4/4
Inclusion / Exclusion
4/4
Therapy Description
4/4
Statistics
Detsky AS, Naylor CD, O'Rourke K, McGeer AJ, L'Abbé KA. J Clin Epidemiol. 1992;45:255-65
Fragility Indexは、重要な所見の解釈を助けるツールで、結果の強さの尺度を提供します。Fragility Indexは、その所見が有意でなくなるために、二項対立の結果に追加する必要がある連続した事象の数を表します。数値が小さいほど弱い所見を表し、数値が大きいほど強い所見を表します。
なぜ今この研究が必要なのですか?
Sciatica resulting from a herniated disc causes radiating pain down the leg. In Western countries, the incidence of sciatica per year is about 5/1000 adults, and this disorder has a large effect on the economy. With regards to cost of hospital care, disorders of the lumbar spine are in the top 5 of disease categories, and also cause increased lost work time and disability. It is widely accepted that surgery should only be performed if conservative treatment has not been successful in reducing symptoms. However, the optimal length of conservative treatment required before surgery is unknown.
主な研究課題は何ですか?
In patients presenting with severe sciatica, is earlier surgery more effective in improving outcomes than prolonged conservative treatment, measured over a one year period?
重要な知見は?
- Over the 52 week follow up period, there were no significant differences between both groups with respect to the Roland Disability Questionnaire (p=0.13).
- Those who underwent early surgery had a significant decrease in leg pain compared to the prolonged conservative treatment group (p<0.001).
- During the first 36 weeks, a faster rate of perceived recovery was observed in the early surgery group (hazard ratio 1.97, 95% CI 1.72 to 2.22, p<0.001).
- After 52 weeks, both groups had similar recovery rates of 95%.
最も覚えておくべきことは?
At the one year period, both the group undergoing early surgery, and those receiving conservative treatment reported similar outcomes. However, perceived recovery and pain relief were faster for those patients who underwent early surgery.
それが私の患者ケアにどのように影響するか?
Although both patients treated with early surgery and those who received conservative treatment (and eventual surgery if required) produced similar outcomes at one year, early surgery may be a viable option if patients cannot cope with the leg pain, want to reduce recovery time or do not wish to wait for natural recovery to occur. On the other hand, individuals whose pain is tolerable have the option to defer surgery until absolutely necessary. Further high-quality evidence is required to substantiate these findings.
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