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Table 2 Clinical Outcomes and Complications of the Two Groups

From: Comparison of lumbar endoscopic unilateral laminotomy bilateral decompression and minimally invasive surgery transforaminal lumbar interbody fusion for one-level lumbar spinal stenosis

  LE-ULBD MIS-TLIF P value
N 32 80
Operation time (min) 139.5 ± 31.2 (85–240) 161.1 ± 45.6 (60–300) 0.023
Estimated blood loss (ml) 51.9 ± 10.9 (40–80) 146.6 ± 80.3 (50–400) < 0.001
Time to ambulation (h) 11.7 ± 3.6 (8–28) 22.1 ± 9.5 (12–48) < 0.001
Length of hospitalization (d) 2.7 ± 0.9 (1–4) 11.2 ± 2.4 (7–17) < 0.001
  1. N indicates number of patients included in the statistical analysis, LE-ULBD lumbar endoscopic unilateral laminotomy bilateral decompression, MIS-TLIF minimally invasive surgery transforaminal lumbar interbody fusion