Skip to main content

Table 4 Intra- and inter-rater precision of CT scan and radiographic measurements

From: A reliable radiographic measurement for evaluation of normal distal tibiofibular syndesmosis: a multi-detector computed tomography study in adults

 

Intra-rater RMS-SD

Inter-rater RMS-SD

Rater 1

Rater 1 vs. 2

Rater 1 vs. 3

Rater 2 vs. 3

3-D CT

    

  XY

0.48

0.51

0.45

0.61

  TCS-A

0.15

0.12

0.14

0.15

  TCS-P

0.14

0.17

0.20

0.15

  IFD

0.22

0.27

0.20

0.35

  IFH

0.94

0.97

0.87

1.08

2-D CT

    

  TCS-A

0.18

0.19

0.19

0.20

  TCS-P

0.24

0.25

0.27

0.20

  IFD

0.26

0.27

0.31

0.36

Radiograph

    

  TCS

0.48

0.50

0.47

0.51

  TFO

0.78

0.76

0.76

1.12

  IFH

2.87

2.84

2.59

4.00

  1. RMS-SD root mean square standard deviation, XY vertical distance from plane X to plane Y, TCS-A anterior tibiofibular clear space, TCS-P posterior tibiofibular clear space, TCS tibiofibular clear space, TFO tibiofibular overlap, IFD depth of incisura fibularis, IFH height of incisura fibularis