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Two Helpful MRI Signs for Evaluation of Posterolateral Bundle Tears of the Anterior Cruciate Ligament: A Pilot Study
BACKGROUND: Diagnosis of partial anterior cruciate ligament (ACL) tears is difficult on magnetic resonance imaging (MRI), particularly the isolated tears of the posterolateral bundle. PURPOSE: To describe 2 MRI signs of partial ACL tear involving the posterolateral bundle on conventional knee MRI se...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
SAGE Publications
2015
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4622304/ https://www.ncbi.nlm.nih.gov/pubmed/26535387 http://dx.doi.org/10.1177/2325967115597641 |
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author | Volokhina, Yulia V. Syed, Hasan M. Pham, Peter H. Blackburn, Allie K. |
author_facet | Volokhina, Yulia V. Syed, Hasan M. Pham, Peter H. Blackburn, Allie K. |
author_sort | Volokhina, Yulia V. |
collection | PubMed |
description | BACKGROUND: Diagnosis of partial anterior cruciate ligament (ACL) tears is difficult on magnetic resonance imaging (MRI), particularly the isolated tears of the posterolateral bundle. PURPOSE: To describe 2 MRI signs of partial ACL tear involving the posterolateral bundle on conventional knee MRI sequences, specifically, the “gap” and “footprint” signs. STUDY DESIGN: Case-control study. METHODS: We retrospectively reviewed the MRI appearance of the ACL in 11 patients with arthroscopically proven partial ACL tears isolated to the posterolateral bundle, as well as in 10 patients with arthroscopically proven intact ACLs, and evaluated for the presence of gap and/or footprint signs. RESULTS: There was high degree of sensitivity and specificity associated with the MRI findings of “gap” and “footprint” signs with arthroscopically proven isolated posterolateral bundle tears. CONCLUSION: Gap and footprint signs are suggestive of posterolateral bundle tear of the ACL, and the presence of 1 or both of these imaging findings should alert the radiologist to the possibility of a posterolateral bundle tear. |
format | Online Article Text |
id | pubmed-4622304 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2015 |
publisher | SAGE Publications |
record_format | MEDLINE/PubMed |
spelling | pubmed-46223042015-11-03 Two Helpful MRI Signs for Evaluation of Posterolateral Bundle Tears of the Anterior Cruciate Ligament: A Pilot Study Volokhina, Yulia V. Syed, Hasan M. Pham, Peter H. Blackburn, Allie K. Orthop J Sports Med 25 BACKGROUND: Diagnosis of partial anterior cruciate ligament (ACL) tears is difficult on magnetic resonance imaging (MRI), particularly the isolated tears of the posterolateral bundle. PURPOSE: To describe 2 MRI signs of partial ACL tear involving the posterolateral bundle on conventional knee MRI sequences, specifically, the “gap” and “footprint” signs. STUDY DESIGN: Case-control study. METHODS: We retrospectively reviewed the MRI appearance of the ACL in 11 patients with arthroscopically proven partial ACL tears isolated to the posterolateral bundle, as well as in 10 patients with arthroscopically proven intact ACLs, and evaluated for the presence of gap and/or footprint signs. RESULTS: There was high degree of sensitivity and specificity associated with the MRI findings of “gap” and “footprint” signs with arthroscopically proven isolated posterolateral bundle tears. CONCLUSION: Gap and footprint signs are suggestive of posterolateral bundle tear of the ACL, and the presence of 1 or both of these imaging findings should alert the radiologist to the possibility of a posterolateral bundle tear. SAGE Publications 2015-08-03 /pmc/articles/PMC4622304/ /pubmed/26535387 http://dx.doi.org/10.1177/2325967115597641 Text en © The Author(s) 2015 http://creativecommons.org/licenses/by-nc-nd/3.0/ This article is distributed under the terms of the Creative Commons Attribution-NonCommercial-NoDerivs 3.0 License (http://www.creativecommons.org/licenses/by-nc-nd/3.0/) which permits non-commercial use, reproduction and distribution of the work as published without adaptation or alteration, without further permission provided the original work is attributed as specified on the SAGE and Open Access page (https://us.sagepub.com/en-us/nam/open-access-at-sage). |
spellingShingle | 25 Volokhina, Yulia V. Syed, Hasan M. Pham, Peter H. Blackburn, Allie K. Two Helpful MRI Signs for Evaluation of Posterolateral Bundle Tears of the Anterior Cruciate Ligament: A Pilot Study |
title | Two Helpful MRI Signs for Evaluation of Posterolateral Bundle Tears of the Anterior Cruciate Ligament: A Pilot Study |
title_full | Two Helpful MRI Signs for Evaluation of Posterolateral Bundle Tears of the Anterior Cruciate Ligament: A Pilot Study |
title_fullStr | Two Helpful MRI Signs for Evaluation of Posterolateral Bundle Tears of the Anterior Cruciate Ligament: A Pilot Study |
title_full_unstemmed | Two Helpful MRI Signs for Evaluation of Posterolateral Bundle Tears of the Anterior Cruciate Ligament: A Pilot Study |
title_short | Two Helpful MRI Signs for Evaluation of Posterolateral Bundle Tears of the Anterior Cruciate Ligament: A Pilot Study |
title_sort | two helpful mri signs for evaluation of posterolateral bundle tears of the anterior cruciate ligament: a pilot study |
topic | 25 |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4622304/ https://www.ncbi.nlm.nih.gov/pubmed/26535387 http://dx.doi.org/10.1177/2325967115597641 |
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