3D computer tomography for measurement of femoral position in acl reconstruction
Acta ortop. bras
;
23(1): 11-15, Jan-Feb/2015. fig
Article
Dans Anglais
| LILACS
| ID: lil-735714
ABSTRACT
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.
Texte intégral:
Disponible
Indice:
LILAS (Amériques)
Sujet Principal:
Traitement d'image par ordinateur
/
Interprétation d'images assistée par ordinateur
/
Tomodensitométrie
/
Ligament croisé antérieur
/
Genou
Limites du sujet:
Adolescent
/
Adulte
/
Femelle
/
Humains
/
Mâle
langue:
Anglais
Texte intégral:
Acta ortop. bras
Thème du journal:
Orthopédie
Année:
2015
Type:
Article
Pays d'affiliation:
Brésil
Institution/Pays d'affiliation:
FEI University Center/BR
/
University of São Paulo/BR
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