Using three-dimensional isotropic SPACE MRI to detect posterolateral corner injury of the knee
| Autor: | Jeong Ho Kim, Jae Ang Sim, Hye-Young Choi, Su Joa Ahn, Beom Goo Lee, Sheen-Woo Lee, Yu Mi Jeong |
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| Rok vydání: | 2016 |
| Předmět: |
Adult
Male medicine.medical_specialty Adolescent Physical examination Knee Injuries 030218 nuclear medicine & medical imaging 03 medical and health sciences Imaging Three-Dimensional 0302 clinical medicine Image Interpretation Computer-Assisted medicine Posterolateral corner Humans Radiology Nuclear Medicine and imaging In patient Statistical analysis Aged 030222 orthopedics Radiological and Ultrasound Technology medicine.diagnostic_test business.industry Isotropy Magnetic resonance imaging General Medicine Middle Aged Magnetic Resonance Imaging Treatment Outcome Female Radiology Mr images Nuclear medicine business Mri findings |
| Zdroj: | Acta Radiologica. 57:1251-1260 |
| ISSN: | 1600-0455 0284-1851 |
| Popis: | BackgroundReliable magnetic resonance imaging (MRI) diagnosis is important in cases of posterolateral corner (PLC) injury due to the limitations of physical examination in patients with multi-ligament injury.PurposeTo document the appearance of PLC of the knee on three-dimensional (3D) isotropic MR images, and to determine the significance of MRI findings in patients with confirmed posterolateral rotatory instability.Material and MethodsTwenty-five patients that underwent surgery for posterolateral instability, and 25 individuals with normal MRI constituted the study cohort. The PLC appearances (popliteofibular, fabellofibular, arcuate ligaments, popliteomeniscal fascicle) were analyzed using 3D isotropic proton density sequence and routine two-dimensional (2D) MRI. In addition, the “fibular cap” sign was evaluated. Statistical analysis was performed using the Chi-square and McNemar’s tests.ResultsThickening of popliteofibular, fabellofibular, arcuate ligaments, and popliteomeniscal fascicle was significantly more frequent in the PLC injury group than in the control group ( P Conclusion3D MRI is a valid modality for detecting PLC abnormalities as it visualizes pathologies in each component and exhibits the positive fibular cap sign. |
| Databáze: | OpenAIRE |
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