Chinese Journal of Tissue Engineering Research ›› 2020, Vol. 24 ›› Issue (33): 5354-5357.doi: 10.3969/j.issn.2095-4344.2830

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Correlation of saggital parameters of cervical and thoracic junction areas in asymptomatic adults

Cao Bin1, Zuo Yuqiang2, Du Hanyang3, Yu Haiquan1, Su Jingyang1, Meng Haoyong3   

  1. 1Third Department of Orthopedics, 3Department of Radiology, First Hospital of Shijiazhuang, Shijiazhuang 050000, Hebei Province, China; 2Medical Examination Center, Second Hospital of Hebei Medical University, Shijiazhuang 050000, Hebei Province, China

  • Received:2019-12-23 Revised:2019-12-27 Accepted:2020-02-24 Online:2020-11-28 Published:2020-09-30
  • About author:Cao Bin, Associate chief physician, Third Department of Orthopedics, First Hospital of Shijiazhuang, Shijiazhuang 050000, Hebei Province, China

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Abstract:

BACKGROUND: The sagittal balance of the spine in the cervical and thoracic junction areas is not only related to the sagittal balance of the whole spine, but also related to the sagittal balance of the cervical spine.

OBJECTIVE: To investigate the correlation of sagittal parameters in cervical and thoracic junction areas in asymptomatic adults.

METHODS: Totally 120 asymptomatic adults were enrolled from January 2017 to December 2018 from the Medical Examination Center, Second Hospital of Hebei Medical University. Age ranged from 23-79 years. The patients were divided into group A (21-40 years old), group B (41-60 years old) and group C (61-80 years old), with 40 persons in each group. DR images of lateral cervical spine were taken, and the following imaging parameters were measured: C2-C7 sagittal vertical axis, head center of gravity to C7 sagittal vertical axis, thoracic inlet angle, neck tilt, T1 slope and the cranial tilt.

RESULTS AND CONCLUSION: (1) There were significant differences among the three groups in the C2-C7 sagittal vertical axis, head center of gravity to C7 sagittal vertical axis, thoracic inlet angle, neck tilt, T1 slope and the cranial tilt (P < 0.05); there were also significant differences between the two groups (P < 0.05). Thoracic inlet angle, neck tilt, and T1 slope increased with age. (2) The correlation analysis showed that there was a positive correlation between the thoracic inlet angle, neck tilt, T1 slope and age (r=0.622, r=0.439, r=0.533, all P < 0.001). There was a positive correlation between the thoracic inlet angle and T1 slope (r=0.569, P < 0.001). There was negative correlation between the thoracic inlet angle, T1 slope and C2-C7 sagittal vertical axis (r=-0.725, r=-0.352, all P < 0.001). (3) The results showed that the thoracic inlet angle, neck tilt, carnial tilt and T1 slope increased with age, and the thoracic inlet angle, neck tilt and T1 slope were positively correlated with age.

Key words: thoracic inlet angle, cervical spine sagittal balance, radiology, correlation, asymptomatic, adults, digital radiography, sagittal vertical axis

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