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Table 2 Comparison of surgical indicators between both groups

From: RETRACTED ARTICLE: Treatment for lumbar spinal stenosis secondary to ligamentum flavum hypertrophy using percutaneous endoscopy through interlaminar approach: a retrospective study

  Control group Endoscopy group
Operation time (min) 92.90 ± 15.46 59.95 ± 11.90*
the quantity of bleeding (ml) 194.30 ± 28.61 13.55 ± 2.58*
postoperative hospital stay(d) 9.95 ± 1.96 5.15 ± 1.31*
  1. Note: P < 0.05 compared with the control group