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How reliable is MRI in diagnosing cartilaginous lesions in patients with first and recurrent lateral patellar dislocations?

BACKGROUND: Lateral dislocation of the patella (LPD) leads to cartilaginous injuries, which have been reported to be associated with retropatellar complaints and the development of patellofemoral osteoarthritis. Therefore, the purpose of this study was to determine the reliability of MRI for cartila...

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Autores principales: von Engelhardt, Lars V, Raddatz, Marthina, Bouillon, Bertil, Spahn, Gunter, Dàvid, Andreas, Haage, Patrick, Lichtinger, Thomas K
Formato: Texto
Lenguaje:English
Publicado: BioMed Central 2010
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2906436/
https://www.ncbi.nlm.nih.gov/pubmed/20602779
http://dx.doi.org/10.1186/1471-2474-11-149
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author von Engelhardt, Lars V
Raddatz, Marthina
Bouillon, Bertil
Spahn, Gunter
Dàvid, Andreas
Haage, Patrick
Lichtinger, Thomas K
author_facet von Engelhardt, Lars V
Raddatz, Marthina
Bouillon, Bertil
Spahn, Gunter
Dàvid, Andreas
Haage, Patrick
Lichtinger, Thomas K
author_sort von Engelhardt, Lars V
collection PubMed
description BACKGROUND: Lateral dislocation of the patella (LPD) leads to cartilaginous injuries, which have been reported to be associated with retropatellar complaints and the development of patellofemoral osteoarthritis. Therefore, the purpose of this study was to determine the reliability of MRI for cartilage diagnostics after a first and recurrent LPD. METHODS: After an average of 4.7 days following an acute LPD, 40 patients (21 with first LPDs and 19 with recurrent LPDs) underwent standardized 1.5 Tesla MRI (sagittal T1-TSE, coronal STIR-TSE, transversal fat-suppressed PD-TSE, sagittal fat-suppressed PD-TSE). MRI grading was compared to arthroscopic assessment of the cartilage. RESULTS: Sensitivities and positive predictive values for grade 3 and 4 lesions were markedly higher in the patient group with first LPDs compared to the group with recurrent LPDs. Similarly, intra- and inter-observer agreement yielded higher kappa values in patients with first LPDs compared to those with recurrent LPDs. All grade 4 lesions affecting the subchondral bone (osteochondral defects), such as a fissuring or erosion, were correctly assessed on MRI. CONCLUSIONS: This study demonstrated a comparatively good diagnostic performance for MRI in the evaluation of first and recurrent LPDs, and we therefore recommend MRI for the cartilage assessment after a LPD.
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spelling pubmed-29064362010-07-20 How reliable is MRI in diagnosing cartilaginous lesions in patients with first and recurrent lateral patellar dislocations? von Engelhardt, Lars V Raddatz, Marthina Bouillon, Bertil Spahn, Gunter Dàvid, Andreas Haage, Patrick Lichtinger, Thomas K BMC Musculoskelet Disord Research Article BACKGROUND: Lateral dislocation of the patella (LPD) leads to cartilaginous injuries, which have been reported to be associated with retropatellar complaints and the development of patellofemoral osteoarthritis. Therefore, the purpose of this study was to determine the reliability of MRI for cartilage diagnostics after a first and recurrent LPD. METHODS: After an average of 4.7 days following an acute LPD, 40 patients (21 with first LPDs and 19 with recurrent LPDs) underwent standardized 1.5 Tesla MRI (sagittal T1-TSE, coronal STIR-TSE, transversal fat-suppressed PD-TSE, sagittal fat-suppressed PD-TSE). MRI grading was compared to arthroscopic assessment of the cartilage. RESULTS: Sensitivities and positive predictive values for grade 3 and 4 lesions were markedly higher in the patient group with first LPDs compared to the group with recurrent LPDs. Similarly, intra- and inter-observer agreement yielded higher kappa values in patients with first LPDs compared to those with recurrent LPDs. All grade 4 lesions affecting the subchondral bone (osteochondral defects), such as a fissuring or erosion, were correctly assessed on MRI. CONCLUSIONS: This study demonstrated a comparatively good diagnostic performance for MRI in the evaluation of first and recurrent LPDs, and we therefore recommend MRI for the cartilage assessment after a LPD. BioMed Central 2010-07-05 /pmc/articles/PMC2906436/ /pubmed/20602779 http://dx.doi.org/10.1186/1471-2474-11-149 Text en Copyright © 2010 von Engelhardt et al; licensee BioMed Central Ltd. http://creativecommons.org/licenses/by/2.0 This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Research Article
von Engelhardt, Lars V
Raddatz, Marthina
Bouillon, Bertil
Spahn, Gunter
Dàvid, Andreas
Haage, Patrick
Lichtinger, Thomas K
How reliable is MRI in diagnosing cartilaginous lesions in patients with first and recurrent lateral patellar dislocations?
title How reliable is MRI in diagnosing cartilaginous lesions in patients with first and recurrent lateral patellar dislocations?
title_full How reliable is MRI in diagnosing cartilaginous lesions in patients with first and recurrent lateral patellar dislocations?
title_fullStr How reliable is MRI in diagnosing cartilaginous lesions in patients with first and recurrent lateral patellar dislocations?
title_full_unstemmed How reliable is MRI in diagnosing cartilaginous lesions in patients with first and recurrent lateral patellar dislocations?
title_short How reliable is MRI in diagnosing cartilaginous lesions in patients with first and recurrent lateral patellar dislocations?
title_sort how reliable is mri in diagnosing cartilaginous lesions in patients with first and recurrent lateral patellar dislocations?
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2906436/
https://www.ncbi.nlm.nih.gov/pubmed/20602779
http://dx.doi.org/10.1186/1471-2474-11-149
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