One large randomised trial (
n = 283) with a low risk of bias compared early surgery to prolonged conservative treatment followed by surgery if needed in patients with severe sciatica for 6–12 weeks. At 1 year of follow-up, 95% of patients in both treatment groups had experienced satisfactory recovery, and no subsequent differences were found. This lack of a difference between groups was maintained for the following year [1].

 

One small trial (n = 56) compared microdiscectomy with conserv...


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