Skip to main content

Table 2 Surgical parameters and feasibility of different kinds of simulated osteotomy

From: Modified C7 pedicle subtraction osteotomy for the correction of cervicothoracic kyphosis

 tPSOVCDmPSO
MaleFemaleAll patientsMaleFemaleAll patientsMaleFemaleAll patients
Angle corrected (degree, mean ± SD)43.4 ± 4.541.2 ± 3.741.9 ± 4.373.0 ± 7.169.4 ± 4.371.7 ± 5.760.1 ± 6.258.7 ± 5.459.1 ± 4.7
Resected length of C6 inferior facet (mm, mean ± SD)3.3 ± 2.03.2 ± 1.73.2 ± 1.35.7 ± 2.35.1 ± 1.75.4 ± 2.04.7 ± 2.14.2 ± 1.14.5 ± 1.6
Resected length of T1 superior facet (mm, mean ± SD)5.5 ± 2.55.3 ± 2.25.4 ± 2.27.5 ± 2.86.9 ± 2.57.2 ± 2.26.5 ± 2.66.2 ± 1.66.4 ± 2.1
Feasibility of simulated osteotomy
 No. of patients with C6/T1 pedicles impinged34733185110919
 No. of patients with C7/C8 nerve roots compressed53828154313417
 No. of simulated osteotomies considered to be successful7234106(88.3%)261238(31.7%)592887(72.5%)
  1. tPSO Traditional pedicle subtraction osteotomy, VCD Vertebral column decancellation, mPSO Modified pedicle subtraction osteotomy