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The Influence of Natural Head Position on the Cervical Sagittal Alignment.
J Healthc Eng. 2017; 2017:2941048.JH

Abstract

INTRODUCTION

This study investigated the relationship between the parameters related to the natural head position and cervical segmental angles and alignment of patients with neck pain.

MATERIAL AND METHODS

The lateral radiographs of the cervical spine were collected from 103 patients and were used to retrospectively analyze the correlation between the natural head position, cervical local sagittal angles, and alignment. Sagittal measurements were as follows: cervical curvature classification, slope of McGregor's line (McGS), local sagittal angles (C0-C2 angle, C2-C5 angle, C5-C7 angle, and C2-C7 angle), T1 slope, center of gravity of the head to sagittal vertical axis (CG-C7 SVA), and local sagittal alignment (C0-C2 SVA and C2-C7 SVA).

RESULTS

McGS was significantly correlated to C0-C2 angle (r = 0.57), C0-C2 SVA (r = -0.53), C2-C7 SVA (r = -0.28), and CG-C7 SVA (r = -0.47). CG-C7 SVA was also significantly correlated to curvature type (r = 0.27), C5-C7 angle (r = -0.37), and C2-C7 angle (r = -0.39).

CONCLUSIONS

A backward shift with an extended head position may accompany a relatively normal curvature of the cervical spine. The effect of posture control in relieving abnormal mechanical state of the cervical spine needs to be further confirmed by biomechanical analysis.

Links

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Authors+Show Affiliations

Wang K
Shi's Center of Orthopedics and Traumatology, Shuguang Hospital Affiliated to Shanghai University of TCM, Shanghai 201203, China. Tongji Hospital, Tongji University School of Medicine, Shanghai 200092, China.
Deng Z
Shi's Center of Orthopedics and Traumatology, Shuguang Hospital Affiliated to Shanghai University of TCM, Shanghai 201203, China. Baoshan Branch, Shuguang Hospital Affiliated to Shanghai University of TCM, Shanghai 201900, China.
Li Z
Shi's Center of Orthopedics and Traumatology, Shuguang Hospital Affiliated to Shanghai University of TCM, Shanghai 201203, China. Institute of Traumatology & Orthopedics, Shanghai Academy of TCM, Shanghai 201203, China.
Wang H
Shi's Center of Orthopedics and Traumatology, Shuguang Hospital Affiliated to Shanghai University of TCM, Shanghai 201203, China. Institute of Traumatology & Orthopedics, Shanghai Academy of TCM, Shanghai 201203, China.
Zhan H
Shi's Center of Orthopedics and Traumatology, Shuguang Hospital Affiliated to Shanghai University of TCM, Shanghai 201203, China. Institute of Traumatology & Orthopedics, Shanghai Academy of TCM, Shanghai 201203, China.

MeSH

AdultCervical VertebraeFemaleHeadHumansKyphosisLordosisMaleNeck PainPostureRetrospective Studies

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

29065584

Citation

Wang, Kuan, et al. "The Influence of Natural Head Position On the Cervical Sagittal Alignment." Journal of Healthcare Engineering, vol. 2017, 2017, p. 2941048.
Wang K, Deng Z, Li Z, et al. The Influence of Natural Head Position on the Cervical Sagittal Alignment. J Healthc Eng. 2017;2017:2941048.
Wang, K., Deng, Z., Li, Z., Wang, H., & Zhan, H. (2017). The Influence of Natural Head Position on the Cervical Sagittal Alignment. Journal of Healthcare Engineering, 2017, 2941048. https://doi.org/10.1155/2017/2941048
Wang K, et al. The Influence of Natural Head Position On the Cervical Sagittal Alignment. J Healthc Eng. 2017;2017:2941048. PubMed PMID: 29065584.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - The Influence of Natural Head Position on the Cervical Sagittal Alignment. AU - Wang,Kuan, AU - Deng,Zhen, AU - Li,Zhengyan, AU - Wang,Huihao, AU - Zhan,Hongsheng, Y1 - 2017/08/13/ PY - 2017/03/24/received PY - 2017/06/06/revised PY - 2017/07/03/accepted PY - 2017/10/26/entrez PY - 2017/10/27/pubmed PY - 2019/7/10/medline SP - 2941048 EP - 2941048 JF - Journal of healthcare engineering JO - J Healthc Eng VL - 2017 N2 - INTRODUCTION: This study investigated the relationship between the parameters related to the natural head position and cervical segmental angles and alignment of patients with neck pain. MATERIAL AND METHODS: The lateral radiographs of the cervical spine were collected from 103 patients and were used to retrospectively analyze the correlation between the natural head position, cervical local sagittal angles, and alignment. Sagittal measurements were as follows: cervical curvature classification, slope of McGregor's line (McGS), local sagittal angles (C0-C2 angle, C2-C5 angle, C5-C7 angle, and C2-C7 angle), T1 slope, center of gravity of the head to sagittal vertical axis (CG-C7 SVA), and local sagittal alignment (C0-C2 SVA and C2-C7 SVA). RESULTS: McGS was significantly correlated to C0-C2 angle (r = 0.57), C0-C2 SVA (r = -0.53), C2-C7 SVA (r = -0.28), and CG-C7 SVA (r = -0.47). CG-C7 SVA was also significantly correlated to curvature type (r = 0.27), C5-C7 angle (r = -0.37), and C2-C7 angle (r = -0.39). CONCLUSIONS: A backward shift with an extended head position may accompany a relatively normal curvature of the cervical spine. The effect of posture control in relieving abnormal mechanical state of the cervical spine needs to be further confirmed by biomechanical analysis. SN - 2040-2295 UR - https://www.unboundmedicine.com/medline/citation/29065584/The_Influence_of_Natural_Head_Position_on_the_Cervical_Sagittal_Alignment_ DB - PRIME DP - Unbound Medicine ER -