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Table 5 MacNab classification [12]

From: Percutaneous transforaminal endoscopic surgery (PTES) for symptomatic lumbar disc herniation: a surgical technique, outcome, and complications in 209 consecutive cases

Results Complications
Excellent No pain; no restriction of activity
Good Occasional back or leg pain not interfering with the patient’s ability to do his or her normal work, or to enjoy leisure activities
Fair Improved functional capacity, but handicapped by intermittent pain of sufficient severity tocurtail or modify work or leisure activities
Poor No improvement or insufficient improvement toenable an increase in activities/or furtheroperative intervention required