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dc.contributor.authorEsler, Colin
dc.contributor.authorRennie, Winston
dc.date.accessioned2022-06-16T12:42:28Z
dc.date.available2022-06-16T12:42:28Z
dc.date.issued2022
dc.identifier.citationAl-Assam H, Orsatti G, Esler CNA, Botchu R, Rennie WJ. Alteration of anterior cruciate ligament orientation in knees with trochlear dysplasia: description of a novel angle on MRI. Clin Radiol. 2022 Jul;77(7):e526-e531.en_US
dc.identifier.other10.1016/j.crad.2022.03.020
dc.identifier.urihttp://hdl.handle.net/20.500.12904/15606
dc.description.abstractAim: To assess changes in anterior cruciate ligament (ACL) geometry and inclination in trochlear dysplasia (TD) and analyse their significance. Materials and methods: Ninety-nine consecutive knees with TD and 23 normal knee magnetic resonance imaging (MRI) examinations were included as controls (n=122). Varying degrees of TD were classified into four distinct groups (A-D) according to the Dejour classification. MRI images were reviewed independently to measure four ACL angles. Interobserver and intra-observer agreements with statistical significance were determined for TD and various angles. Results: A significant association was found between TD and two measured angles compared with the control group (sagittal ACL and anteromedial ACL angles, p<0.001 for each). The results indicate that TD can predispose to more vertical ACL inclination as measured in the coronal plane on MRI. No association was found with the Blumenstat angle. Conclusion: The present study found significant associations with TD and steeper sagittal ACL, which have been implicated in ACL failure. A novel angle (anteromedial ACL angle) is described which has significant association with TD and is specific for the anteromedial bundle as measured in the coronal plane. Careful consideration of ACL fibre orientation in the coronal plane on MRI is suggested in knees with TD and the use of this newly described angle in assessing ACL reconstruction (ACLR) grafts.
dc.description.urihttps://linkinghub.elsevier.com/retrieve/pii/S0009-9260(22)00178-7en_US
dc.language.isoenen_US
dc.subjectAnterior cruciate ligamenten_US
dc.subjectKnee jointen_US
dc.subjectMagnetic resonance imagingen_US
dc.subjectHyperplasiaen_US
dc.titleAlteration of anterior cruciate ligament orientation in knees with trochlear dysplasia: description of a novel angle on MRIen_US
dc.typeArticleen_US
rioxxterms.funderDefault funderen_US
rioxxterms.identifier.projectDefault projecten_US
rioxxterms.versionNAen_US
rioxxterms.versionofrecordhttps://doi.org/10.1016/j.crad.2022.03.020en_US
rioxxterms.typeJournal Article/Reviewen_US
refterms.panelUnspecifieden_US
refterms.dateFirstOnline2022-04-28
html.description.abstractAim: To assess changes in anterior cruciate ligament (ACL) geometry and inclination in trochlear dysplasia (TD) and analyse their significance. Materials and methods: Ninety-nine consecutive knees with TD and 23 normal knee magnetic resonance imaging (MRI) examinations were included as controls (n=122). Varying degrees of TD were classified into four distinct groups (A-D) according to the Dejour classification. MRI images were reviewed independently to measure four ACL angles. Interobserver and intra-observer agreements with statistical significance were determined for TD and various angles. Results: A significant association was found between TD and two measured angles compared with the control group (sagittal ACL and anteromedial ACL angles, p<0.001 for each). The results indicate that TD can predispose to more vertical ACL inclination as measured in the coronal plane on MRI. No association was found with the Blumenstat angle. Conclusion: The present study found significant associations with TD and steeper sagittal ACL, which have been implicated in ACL failure. A novel angle (anteromedial ACL angle) is described which has significant association with TD and is specific for the anteromedial bundle as measured in the coronal plane. Careful consideration of ACL fibre orientation in the coronal plane on MRI is suggested in knees with TD and the use of this newly described angle in assessing ACL reconstruction (ACLR) grafts.en_US
rioxxterms.funder.project94a427429a5bcfef7dd04c33360d80cden_US


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