REPRODUCIBILITY OF S2-ALAR ILIAC SCREW MORPHOMETRIC ANALYSIS

被引：2
作者：
de Sousa Pontes, Mariana Demetrio [1 ]
Francisco, Lucas Americo [1 ]
Ismael, Lucas Klarosk [1 ]
Pereira da Silva Herrero, Carlos Fernando [1 ]
机构：
[1] Univ Sao Paulo, Ribeirao Preto Sch Med, Dept Orthoped & Anesthesiol, Ribeirao Preto, SP, Brazil
来源：
ACTA ORTOPEDICA BRASILEIRA | 2021年 / 29卷 / 02期
关键词：
Spine; Sacroiliac Joint; Sacrum; Tomography; Reproducibility of Results; FIXATION; S2; DEFORMITY; FUSIONS; SACRUM;
D O I：
10.1590/1413-785220212902236763
中图分类号：
R826.8 [整形外科学]; R782.2 [口腔颌面部整形外科学]; R726.2 [小儿整形外科学]; R62 [整形外科学（修复外科学）];
学科分类号：
摘要：
Objective: To evaluate the reproducibility of a S2-alar iliac (S2AI) screw parameters measurement method by inter and intraobserver reliability. Methods: Cross- sectional study, considering computed tomography exams. Morphometric analysis was performed by multiplanar reconstructions. Screw length, diameter and trajectory angles were the studied variables. To analyze the measurements reproducibility, intraclass correlation coefficient ( ICC) was used. Results: Interobserver reliability was classified as strong for screw shortest length (ICC: 0.742) and diameter (ICC: 0.699). Interobserver reliability was classified as moderate for screw longest length (ICC: 0.553) and for screw trajectory angles in the axial plane for the longest (ICC: 0.478) and for the shortest lengths (ICC: 0.591). Intraobserver reliability was interpreted as excellent for screw shortest (ICC: 0.932) and longest lengths (ICC: 0.962) and diameter (ICC: 0.770) and screw trajectory angles in the axial plane for the screw longest (ICC: 0.773) and shortest lengths ( ICC: 0.862). There were weak interobserver and strong intraobserver reliabilities for trajectory angle in sagittal plane, but no statistical significance was found. Conclusion: Inter and intraobserver reliability of S2AI screw morphometric parameters were interpreted from moderate to excellent in almost all studied variables, except for the screw trajectory angle in the sagittal plane measurement.
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页码：97 / 100
页数：4
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