Evaluation of an objective staging system for assessment of cervical vertebral maturation
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Date
2024-01-17Author
Alhamady, Ahlam M.Ishaq, Ramy Abdul Rahman
Alhammadi, Maged S.
Almashraqi, Abeer A.
Alhashimi, Najah
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Background: The aim of this study was to evaluate an objective method for Cervical Vertebral Maturation (CVM) staging. Methods: An initial sample of 647 Lateral Cephalometric Radiographs (LCR) were staged according to the CVM (Baccetti et al.) by 4 examiners. The final sample (n = 394) included LCR on which the staging of the 4 investigators matched. The objective staging was performed by a single operator. The sample was divided according to the maturational stages into pre-pubertal, pubertal and post-pubertal groups. Measurements were performed on the cervical vertebrae (C2, C3 and C4). The angle between posterior and superior borders for C3 and C4 was the Superior Wall Inclination Angle (SWIA). Concavity Depth (CD) for C2, C3 and C4, and Body Shape (BS) (ratio of width to height of C3 and C4). Measurements of the 3 groups were compared. Results: Reliability of subjective staging was high (intra-observer reliability, 0.948; inter-observer reliability, 0.967). Good agreement was observed for the outcomes measured. Intra-observer reliability was good (0.918, 0.885 and 0.722 for CD, BS and SWIA, respectively). The same was for the inter-observer reliability results (0.902, 0.889 and 0.728 for CD, BS and SWIA, respectively). Significant differences were observed for mean values of SWIA and BS and median values of CD within maturational stage. Similar findings were observed when the outcomes were compared at different phases (P < 0.001). Conclusions: A standardized, objective staging system using linear, angular measurements and ratios was applied for the determination of cervical vertebral maturation.
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