用于测量前交叉韧带重建中股骨位置的三维计算机断层扫描
3D computer tomography for measurement of femoral position in acl reconstruction.
作者信息
Fernandes Tiago Lazzaretti, Martins Nuno Miguel Morais Fonseca, Watai Felipe de Andrade, Albuquerque Cyro, Pedrinelli André, Hernandez Arnaldo José
机构信息
University of São Paulo, Hospital das Clínicas, Institute of Orthopedics and Traumatology, Brazil, Institute of Orthopedics and Traumatology, Hospital das Clínicas, University of São Paulo, Medical School. Brazil.
IFEI University Center, Department of Mechanical Engineering, São Paulo, SP, Brazil, FEI University Center, Department of Mechanical Engineering, São Paulo, SP, Brazil.
出版信息
Acta Ortop Bras. 2015 Jan-Feb;23(1):11-5. doi: 10.1590/1413-78522015230100993.
OBJECTIVE
To validate intra- and inter-class correlation coefficients of a transparent 3D-TC protocol and investigate relationships between different axial rotations.
METHODS
Twenty unilateral knee TCs (iSite - Philips) were evaluated by means of a transparent 3D-TC OsiriX Imaging Software (v.3.9.4), 3D MPR protocol. Mathematical model of femoral tunnel projections acquired on vertical and horizontal rotations from -20 to +20 degrees. Height (h'/H) and length (t'/T) of tunnel projections have been analyzed by the Bernard and Hertel's method.
STATISTICS
power of study=80%, ICC, ANOVA, p<0.05 (SPSS-19).
RESULTS
Transparent 3D-TC showed high reliability of both intra-observer (h'/H=0.941; t'/T=0.928, p<0.001) and inter-observer (h'/H=0.921; t'/T=0.890, p<0.001) ICC. ACL Length (t'/T) and Height (h'/H) projections were statistically different on vertical and horizontal rotations: p=0.01 and p<0.001, respectively.
CONCLUSION
This new transparent 3D-TC protocol is an accurate and reproducible method that can be applied for ACL femoral tunnel or footprint measurement with high ICC reliability. Level of Evidence II, Descriptive Laboratory Study.
目的
验证一种透明3D-TC方案的组内和组间相关系数，并研究不同轴向旋转之间的关系。
方法
通过透明3D-TC OsiriX成像软件（v.3.9.4）的3D MPR方案对20例单侧膝关节TC（iSite - 飞利浦）进行评估。获取在-20至+20度的垂直和水平旋转下股骨隧道投影的数学模型。采用伯纳德和赫特尔方法分析隧道投影的高度（h'/H）和长度（t'/T）。
统计学方法
研究效能=80%，采用组内相关系数（ICC）、方差分析（ANOVA），p<0.05（SPSS-19）。
结果
透明3D-TC显示观察者内（h'/H=0.941；t'/T=0.928，p<0.001）和观察者间（h'/H=0.921；t'/T=0.890，p<0.001）ICC均具有高可靠性。前交叉韧带长度（t'/T）和高度（h'/H）投影在垂直和水平旋转时存在统计学差异：p分别为0.01和p<0.001。
结论
这种新的透明3D-TC方案是一种准确且可重复的方法，可用于前交叉韧带股骨隧道或足迹测量，具有高ICC可靠性。证据等级II，描述性实验室研究。
Zotero 插件