PDF(Pubmed)
Abstract：
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.
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.
摘要：
背景：本研究的目的是评估颈椎成熟（CVM）分期的客观方法。
方法：根据CVM对647例侧位头颅射线照片（LCR）的初始样本进行分级（Baccetti等人。)由4名考官。最终样本（n=394）包括LCR，4名研究者的分期匹配。客观分期由单个操作员执行。样本根据成熟阶段分为青春期前，青春期和青春期后的组。在颈椎（C2，C3和C4）上进行测量。C3和C4的后上边界之间的角度是上壁倾斜角度（SWIA）。C2、C3和C4的凹面深度(CD)和体形(BS)(C3和C4的宽高比)。比较3组的测量结果。
结果：主观分期的可靠性很高（观察者内部的可靠性，0.948；观察者间可靠性，0.967)。对于测量的结果观察到良好的一致性。观察者内部可靠性良好（CD为0.918、0.885和0.722，BS和SWIA，分别)。观察者间可靠性结果也是如此(CD为0.902、0.889和0.728，BS和SWIA，分别)。在成熟期，SWIA和BS的平均值以及CD的中值存在显着差异。在不同阶段比较结果时观察到类似的结果(P<0.001)。
结论：标准化，使用线性的客观分期系统，角度测量和比率用于确定颈椎成熟度。
方法：根据CVM对647例侧位头颅射线照片（LCR）的初始样本进行分级（Baccetti等人。)由4名考官。最终样本（n=394）包括LCR，4名研究者的分期匹配。客观分期由单个操作员执行。样本根据成熟阶段分为青春期前，青春期和青春期后的组。在颈椎（C2，C3和C4）上进行测量。C3和C4的后上边界之间的角度是上壁倾斜角度（SWIA）。C2、C3和C4的凹面深度(CD)和体形(BS)(C3和C4的宽高比)。比较3组的测量结果。
结果：主观分期的可靠性很高（观察者内部的可靠性，0.948；观察者间可靠性，0.967)。对于测量的结果观察到良好的一致性。观察者内部可靠性良好（CD为0.918、0.885和0.722，BS和SWIA，分别)。观察者间可靠性结果也是如此(CD为0.902、0.889和0.728，BS和SWIA，分别)。在成熟期，SWIA和BS的平均值以及CD的中值存在显着差异。在不同阶段比较结果时观察到类似的结果(P<0.001)。
结论：标准化，使用线性的客观分期系统，角度测量和比率用于确定颈椎成熟度。
