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Table 2 Radiographic outcome parameters

From: No correlation between slip reduction in low-grade spondylolisthesis or change in neuroforaminal morphology and clinical outcome

  Preoperative Postoperative – 6 weeks Postoperative – 1 year
SE (mm) 42.3 (±4.5)   
Listhesis (mm) 10.6 (±4.3) 7.2 (±4.8)* 8.1 (±5.0)*
Listhesis (%) 25.2 (±10.3) 15.2 (0–54.7)* 17.4 (0–59.7)*
F (mm) 21.1 (±3.3) 19.3 (±4.1)* 19.0 (±4.3)*
ADH (mm) 7.7 (9–18.7) 8.7 (1.5-17.7) 7.6 (±3.8)
PDH (mm) 4.8 (±2.5) 4.8 (±2.1) 4.3 (0–10.9)
C (mm) 14.3 (±3.1) 13.1 (±3.5)* 13.0 (±3.7)*
α (°) 69.1 (±11.1) 72.5 (±11.8)* 73.9 (45.1-91.7)
  1. Parameters are given as the mean and (± standard deviation) and median and (range), *p < 0.05.