Article Figures & Data
Figures
- Fig. 1
A, Illustration of a thoracic vertebra, showing the pedicle length (AB), the chord length (AC), the transverse pedicle width (DE) and the transverse pedicle angle (F).18, 24, 29, 30 B, Illustration of a lumbar vertebra, showing the pedicle length (AB), the chord length (AC), the transverse pedicle width (DE) and the transverse pedicle angle (F).18, 24, 29, 30 C, Illustration of the angle of vertebral rotation (RAsag). RAsag is defined as the angle between the bisector of the bilateral longitudinal spinous-foraminal line and vertical axis.31–35
- Fig. 2
Pedicle length in the studied patients (*: p < 0.05).
- Fig. 3
Chord length in the studied patients.
Tables
- Table 1
Angle of vertebral rotation and apical vertebrae distribution in the studied patients.
Level Rotation (degrees) No. Apical Vertebrae T1 4±3 T2 4.8±2.4 T3 7.5±3.8 T4 7.4±4.3 T5 6.6±4 T6 8.2±4.5 T7 9.9±5.8 3 T8 12.9±5.7 5 T9 13.8±6.2 6 T10 12.6±7.1 2 T11 12.3±6.5 1 T12 11±5.3 L1 10.9±5.9 L2 10±6 L3 9.3±4.8 L4 7.8±4.7 L5 5.7±4.2 - Table 2
Transverse pedicle width and transverse pedicle angle in the studied patients (*: p < 0.05).
Transverse pedicle width (mm) Transverse pedicle angle (degrees) Level n Mean Range Median n Mean Range Median T1 concave 11 5.3±0.9 3.8-6.5 5.7 11 33.2±4.8 26.8-42.5 32.6 T1 convex 12 4.8±0.9 3.5-5.9 4.9 12 35±5 27.6-42.6 34.9 T2 concave 16 4.5±1.4 1.9-7.1 5 16 25.2±6.6 17.2-40.1 24.8 T2 convex 16 3.9±1.2 1.7-6.4 3.8 16 26.6±7.2 17.4-42.8 25.6 T3 concave 17 4±1.1* 1.9-5.6 3.9 17 19.8±6.3 9.7-32.3 18.2 T3 convex 17 2.4±1.3 0.9-4.6 2.2 17 19.3±6.8 11.3-38.3 17.2 T4 concave 17 2.9±0.8* 1.3-4.1 3.1 17 16.1±3.9 7.8-23.4 16.7 T4convex 17 1.8±0.7 0.5-3.4 1.6 17 15.1±4.1 8.1-23.6 14.6 T5 concave 17 2.8±0.7* 1.6-4.1 2.8 17 15±3.7 8.6-25.1 14.7 T5 convex 17 1.8±0.9 0.8-3.7 1.8 17 15.2±5 11-33 13.9 T6 concave 17 2.4±0.8 0.9-3.7 2.6 17 14.9±3.3 10.6-22.1 14.6 T6 convex 17 2.4±1 1.2-4.4 2.2 17 14.1±2.9 8.4-19.6 14.3 T7 concave 17 2.1±0.6* 1-3.2 2.1 17 14.7±2.8* 9.4-20 14.5 T7 convex 17 2.7±0.9 1.5-4.2 2.8 17 12.8±2.1 9.4-16.1 12.8 T8 concave 17 2.2±0.6* 0.8-2.9 2.4 17 14±3.4 9-24.4 13.2 T8 convex 17 3.1±0.8 1.3-4 3.5 17 12.9±2.8 8.3-19.5 13.5 T9 concave 17 2.9±1.1 1.1-5 2.7 17 14.5±2.9 10.9-21.1 14.3 T9 convex 17 3±0.9 0.9-4.4 3.2 17 13.8±2.9 10.3-21.4 13 T10 concave 17 3.7±1.3 1.7-6.7 3.7 17 13±2.4 9.7-20.4 12.6 T10 convex 17 3.4±1 1.1-5.2 3 17 13.9±2.8 8.6-22.8 13.8 T11 concave 17 4.5±1.2 2.7-6.6 4.5 17 11.9±2.5 7.6-15.6 11.7 T11 convex 17 4±1.4 2-6.9 3.7 17 13.3±3.3 8-22.6 13.1 T12 concave 17 5.9±1.5 3.5-9 5.5 17 11.8±3.2 6.1-17.6 11.6 T12 convex 17 4.8±1.9 2.2-7.8 4.4 17 12.7±2.9 7.8-17.7 13.1 L1 concave 17 4.9±1.6 1.6-7.9 5.4 17 13.2±3.3* 7.8-18.8 12.2 L1 convex 17 4.3±1.6 1.8-7.5 4.3 17 16±3.5 7.9-23.7 15.8 L2 concave 17 4.4±1.3 1.9-7.1 4.1 17 14.9±3.6 8.6-22.2 15.5 L2 convex 17 4.1±1.8 1-7.4 3.9 17 15.6±2.9 11.1-21.7 15.3 L3 concave 15 5.5±1.4 3.4-8.2 6 15 16.4±3.5 11.5-24.2 15.1 L3 convex 15 5.5±2.3 2.8-10.2 5.1 15 15.6±3.3 9.6-19.7 16.2 L4 concave 13 7.9±2.1 5.2-11.2 7.6 13 20.2±5.2 13.1-31.7 18.7 L4 convex 13 7.6±2.1 4.9-10.5 7.6 13 19.3±4 14.5-28.2 18 L5 concave 10 9.8±2.8 5.5-14.8 9.4 10 27.9±5.3 18.3-34.8 28.7 L5 convex 10 9.9±1.8 5.6-12.6 9.9 10 29.2±5.5 17.6-37.9 29.2
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