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A prospective clinical trial was conducted.To determine if removing activity restrictions after surgery and encouraging early return to work would affect clinical outcomes after lumbar discectomy.Current practice usually recommends several weeks to months of restricted activities after lumbar discectomy. No formal studies have been done to determine the optimal period of restriction, if any, after surgery.Fifty consecutive patients undergoing limited open discectomy for herniated lumbar intervertebral disc were prospectively treated with no restrictions at all after surgery and were urged to return to full activities as soon as possible. The patients were followed for a minimum of 2 years. At follow-up evaluation, an independent examiner evaluated each patient.The mean time from surgery to return to work was 1.7 weeks. Eleven of 44 (25%) patients returned to work on the next work day. Ninety-seven percent of patients who were working before surgery returned to their previous work. Forty-three of 44 (97%) patients had returned to full duty by 8 weeks after surgery. At follow-up evaluation (3.8 years), five patients had changed work; three patients increased their work level, and two decreased their work level. No patient changed employment because of back or leg pain. There were three reherniations at the operative level (6%), all occurring more than 1 year after surgery. One patent required reoperation. Back and leg pain scores at follow-up evaluation were very low.Lifting of postoperative restrictions after limited discectomy allowed shortened sick leave without increased complications. Postoperative precautions in these patients may not be necessary.