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KMID : 1155620190140020135
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Journal of Korea CHUNA Manual Medicine for Spine & Nerves
2019 Volume.14 No. 2 p.135 ~ p.146
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Studies about Anatomical Relationships between the spinous and transverse processes of the thoracic spine using 3D-CT
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Geum Ji-Hye
Baek Dong-Gi
Go Hyun-Il
Ha Won-Bae
Lee Jung-Han
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Abstract
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Objectives : There are many theories about the anatomical relationships between the thoracic spinous and transverse processes. However, these studies were all conducted on cadavers. Thus, there might be differences when applied to living individuals. Therefore, the aim of this study was to determine whether the theories were similar when measured in living individuals.
Methods : We conducted studies with 10 individuals aged 20-30 using 3D-CT. Four different measurements were taken between the thoracic spinous and transverse processes. To facilitate the relationship analysis, the spinous process positioned between the traverse process of the segment and the lower segment was set to 0.5. The spinous process located at the height of the traverse process of the lower segment was set to 1. The spinous process located between the traverse process of the lower segment and the two segments below was set to 1.5.
Results : Therefore, based on the aforementioned settings, T1?T4 were 1, T5?T7 were 1.5, T8?T10 were 1, and T11 and T12 were 0.5. This indicated that the spinous processes of T1?T4 and T8?T10 were equal in height to the transverse processes of the lower segment, and that T5?T7 were at the midpoint of the height of the transverse processes between the lower segment and two segments below, and T11, T12 corresponded to the midpoint between the traverse process of the segment and the lower segment.
Conclusions : Neither ‘Geelhoed's rule’nor ‘the rule of three’was accurate when applied to living individuals. However, this study had some limitations, so further research is needed.
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KEYWORD
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Anatomical relationship, Thoracic spine, Transverse process, Spinous process
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