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Table 1 Coefficients of repeatability for interobserver and intraobserver measurement repeatability

From: Comprehensive analysis of pedicle screw implantation in the C7 vertebra using computed tomography-based three-dimensional models

 

Interobserver

Intraobserver

LN horizontal distance (mm)

0.91

0.91

LN vertical distance (mm)

0.76

0.82

MP horizontal distance (mm)

0.65

0.68

SA (°)

0.85

0.88

LA (°)

0.89

0.85

PSD (mm)

0.94

0.96

PSL (mm)

0.81

0.85

  1. LN lateral notch, MP the middle point of the inferior edge of the C6 articular process, SA sagittal angle, LA lateral angle, PSD pedicle screw diameter, PSL pedicle screw length