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논문 기본 정보

자료유형
학술저널
저자정보
Shankar Acharya (Ortho Spine Department Sir GangaRam Hospital New Delhi India) Varun Khanna (Department of Ortho-Spine Surgery Sir Ganga Ram Hospital New Delhi -110060 India) Manoj Kumar (Department of Spine Surgery BLK- Max Superspeciality Hospital New Delhi- 110005 India)
저널정보
대한척추외과학회 대한척추외과학회지 대한척추외과학회지 제29권 제4호
발행연도
2022.12
수록면
89 - 96 (8page)

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Study Design: Cross-sectional, record-based. Objectives: To analyze the cervical sagittal (CS) and thoracic inlet (TI) parameters in asymptomatic adults and form predictive equations for cervical lordosis (CL) and T1 slope (T1S). Summary of Literature Review: Normative values of CS parameters, including physiological CL, and their relationship with TI parameters among healthy Indian adults have been scarcely documented in the literature. Methodology: We analyzed cervical radiographs of 171 healthy adult volunteers and estimated normative values of CS and TI parameters. The thoracic inlet angle (TIA), neck tilt (NT) and T1S were the TI parameters, while the cervical parameters included C2- C7 CL (Cobb’s method), the cervical sagittal vertical axis (cSVA), and C7 slope (C7S). T1S-CL was also calculated. The correlations were estimated and predictive equations were established using simple linear and stepwise multiple regression. The paired-sample t-test was used to evaluate the statistical significance of differences between the estimated and measured values. Results: The mean age of participants was 30±7.76 years. The mean TIA, T1S, NT, CL, cSVA, C7S, and T1S-CL were 79.6°±9.08°, 29.5°±8.6°, 49.3°±8.7°, 21.4°±16.5°,18.8±12.4 mm, 25.7°±7.9°, 8.7°±13.8° respectively. We established the following predictive equations: CL= 0.66 T1S+0.57 TIA - 0.68 SVA - 30.9 (r=0.72; R2 =0.53; p<0.01); CL=0.68 TIA - 30.4 (r=0.41, R2 =0.34; p=0.04) and T1S= 4.45+ 0.72 C7S (r=0.77; R2 =0.62; p<0.01). There was no statistically significant difference between the predicted and the measured values of CL (t=0.09, p=0.973) or T1S (t=0.14; p=0.84). Conclusions: This analysis of sagittal parameters in an asymptomatic adult population provides valuable reference points for the management of various cervical alignment disorders.

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