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Table 4 Outcome according to the MacNab classification

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

  All patients L5/S1 herniations with high iliac crest Herniations with scoliosis Herniation with calcification
No. of patients in category 209 29 25 31
Excellent or good n (%) 200 (95.7) 29 (100) 25 (100) 30 (96.8)
Fair n (%) 6 (2.9) 0 (0) 0 (0) 1 (3.2)
Poor n (%) 3 (1.4) 0 (0) 0 (0) 0 (0)