Compensatory mechanism of cervical sagittal alignment in patients with neck-low back pain

doi:10.3969/j.issn.2095-4344.0789

Abstract

Abstract:

BACKGROUND: Neck pain is a very common symptom, but it is still difficult to diagnose the etiology of neck pain. The relationship between neck pain and cervical sagittal alignment remains controversial.

OBJECTIVE: To investigate the possible compensatory mechanism of cervical sagittal alignment in patients with neck-low back pain.

METHODS: The patients with neck-low back pain were examined by neck and lumbar X-ray. The control group contained the patients with neck pain and without volunteers with cervical symptoms. The X-ray examination of the cervical spine was performed. Each group included 50 patients. Cervical-thoracic lateral radiographs were taken to analyze the following parameters: Occiput-C₂ angle; C₂-C₇ angle; C₂-C₇ sagittal vertical axial (SVA), (center gravity of head, CGH)-C₇SVA; T₁ slope. All parameters were expressed by 95% confidence interval, and the C₀-C₂ angle, C₂-C₇ angle, C₂-C₇ SVA and CGH-G7 SVA distance between groups were analyzed by t test.

RESULTS AND CONCLUSION: (1) The value of the Occiput-C₂ angle was 12.4°-20.7°; C₂-C₇ angle was 5.6°-15.1°; T₁ slope was 21.3°-25.8°; C₂-C₇ SVA was 14.2-20.8 mm; CGH-C₇ SVA was 9.5-17.5 mm; C₀-C₂ angle + C₂-C₇angle was 23.1°-30.7°; C₂-C₇ SVA -CGH-C₇ SVA was 1.4-6.6 mm in patients with neck-low back pain. (2) The value of the Occiput-C₂ angle was 15.6°-18.6°; C₂-C₇ angle was 7.7°-13.1°; T₁ slope was 23.1°-26.0°; C₂-C₇ SVA was 13.5-17.7 mm; CGH-C₇ SVA was 10.5-17.2 mm; C₀-C₂ angle + C₂-C₇ angle was 25.3°-29.6°; C₂-C₇ SVA -CGH-C₇SVA was -0.5-4.6 mm in patients with neck back pain. (3) The Occiput-C₂ angle was 11.8°-17.9°; C₂-C₇ angle was 7.7°-13.9°; T₁ slope was 21.7°-24.5°; C₂-C₇ SVA was 12.1-18.5 mm; CGH-C₇ SVA was 6.4-15.3 mm; C₀-C₂ angle + C₂-C₇ angle was 24.1°-28.8°; the distance between C₂-C₇ SVA and CGH-C₇ SVA was 1.9-7.4 mm in patients without symptoms. (4) There was no statistical significance in each parameter between males and females in each group (P > 0.05); and no significant difference in each parameter was determined between groups (P > 0.05). (5) In summary, there were no significant differences in the sagittal cervical parameters among patients with neck-low back pain and those with neck pain and those without symptoms. There was no specificity in the sagittal alignment compensation of the cervical spine in patients with neck-low back pain. More sensitive sagittal parameters should be studied.

中国组织工程研究杂志出版内容重点：人工关节；骨植入物；脊柱；骨折；内固定；数字化骨科；组织工程

Key words: Cervical Vertebrae, Neck Pain, Low Back Pain, Tissue Engineering

CLC Number:

R318

Zhang Guang-ming, Ruan Zhi-yong, Hu Rong-sheng, Chen Nong, Gao Ru-feng, Pan Fu-gen . Compensatory mechanism of cervical sagittal alignment in patients with neck-low back pain[J]. Chinese Journal of Tissue Engineering Research, 2018, 22(19): 3072-3076.

Figures/Tables 1

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