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Table 3 Comparison of pre- and postoperative imaging parameters between CMID and LP

From: Comparison of microendoscopic selective laminectomy versus conventional laminoplasty in patients with degenerative cervcical myelopathy: a minimum 2-year follow-up study

  CMID   LP   P-value
average SD average SD  
C27 Cobb (degrees) pre 11.0 8.0 9.5 9.3 0.45
post 10.7 8.7 11.5 12.4 0.76
C27 ROM (degrees) pre 41.8 10.8 44.3 14.5 0.39
post 42.1 10.6 28.2 12.4 0.00
C27 SVA (mm) pre 1.9 1.4 2.0 1.2 0.76
post 1.6 1.2 2.1 1.5 0.16
Segmental lordotic angle (degrees) pre 5.9 5.7 4.4 6.4 0.30
post 5.1 5.9 3.1 6.9 0.17
Spinal cord diameter (mm) pre 4.2 0.9 4.2 0.7 0.76
post 5.7 1.1 5.9 0.7 0.44
Posterior spinal cord shift (mm)   1.9 1.1 2.9 1.4 0.00
  1. Continuous variables were compared using Mann–Whitney U test. Significant values are p < 0.05