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Knee Arthroscopy: The “Crevice Sign,” a New Pathognomonic Sign for Unstable Posterior Medial Meniscal Tear in Anterior Cruciate Ligament–Deficient Knees

There has been increased emphasis on medial meniscus repair in the anterior cruciate ligament–reconstructed knee, as this improves stability. We describe an arthroscopic sign of an unstable medial meniscal tear that is diagnostic. The “crevice sign” is a longitudinal fissure located on the distal me...

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Detalles Bibliográficos
Autores principales: Murgier, Jérôme, Hansom, Donald, Clatworthy, Mark
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Elsevier 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7029181/
https://www.ncbi.nlm.nih.gov/pubmed/32099780
http://dx.doi.org/10.1016/j.eats.2019.10.004
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author Murgier, Jérôme
Hansom, Donald
Clatworthy, Mark
author_facet Murgier, Jérôme
Hansom, Donald
Clatworthy, Mark
author_sort Murgier, Jérôme
collection PubMed
description There has been increased emphasis on medial meniscus repair in the anterior cruciate ligament–reconstructed knee, as this improves stability. We describe an arthroscopic sign of an unstable medial meniscal tear that is diagnostic. The “crevice sign” is a longitudinal fissure located on the distal medial femoral condyle. In the anterior cruciate ligament–deficient knee, there is increased strain on the medial meniscus. A posterior longitudinal medial meniscal tear can occur at the time of the index injury or with subsequent instability events. During this injury, the knee pivots and the anterior edge of the unstable medial meniscus digs into the articular cartilage of the medial femoral condyle, resulting in a longitudinal split of the distal femoral condyle articular cartilage. If this sign is observed during arthroscopy, it is recommended that surgeons thoroughly probe the medial meniscus to ensure no pathology is missed.
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spelling pubmed-70291812020-02-25 Knee Arthroscopy: The “Crevice Sign,” a New Pathognomonic Sign for Unstable Posterior Medial Meniscal Tear in Anterior Cruciate Ligament–Deficient Knees Murgier, Jérôme Hansom, Donald Clatworthy, Mark Arthrosc Tech Technical Note There has been increased emphasis on medial meniscus repair in the anterior cruciate ligament–reconstructed knee, as this improves stability. We describe an arthroscopic sign of an unstable medial meniscal tear that is diagnostic. The “crevice sign” is a longitudinal fissure located on the distal medial femoral condyle. In the anterior cruciate ligament–deficient knee, there is increased strain on the medial meniscus. A posterior longitudinal medial meniscal tear can occur at the time of the index injury or with subsequent instability events. During this injury, the knee pivots and the anterior edge of the unstable medial meniscus digs into the articular cartilage of the medial femoral condyle, resulting in a longitudinal split of the distal femoral condyle articular cartilage. If this sign is observed during arthroscopy, it is recommended that surgeons thoroughly probe the medial meniscus to ensure no pathology is missed. Elsevier 2020-01-22 /pmc/articles/PMC7029181/ /pubmed/32099780 http://dx.doi.org/10.1016/j.eats.2019.10.004 Text en © 2019 by the Arthroscopy Association of North America. Published by Elsevier. http://creativecommons.org/licenses/by-nc-nd/4.0/ This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
spellingShingle Technical Note
Murgier, Jérôme
Hansom, Donald
Clatworthy, Mark
Knee Arthroscopy: The “Crevice Sign,” a New Pathognomonic Sign for Unstable Posterior Medial Meniscal Tear in Anterior Cruciate Ligament–Deficient Knees
title Knee Arthroscopy: The “Crevice Sign,” a New Pathognomonic Sign for Unstable Posterior Medial Meniscal Tear in Anterior Cruciate Ligament–Deficient Knees
title_full Knee Arthroscopy: The “Crevice Sign,” a New Pathognomonic Sign for Unstable Posterior Medial Meniscal Tear in Anterior Cruciate Ligament–Deficient Knees
title_fullStr Knee Arthroscopy: The “Crevice Sign,” a New Pathognomonic Sign for Unstable Posterior Medial Meniscal Tear in Anterior Cruciate Ligament–Deficient Knees
title_full_unstemmed Knee Arthroscopy: The “Crevice Sign,” a New Pathognomonic Sign for Unstable Posterior Medial Meniscal Tear in Anterior Cruciate Ligament–Deficient Knees
title_short Knee Arthroscopy: The “Crevice Sign,” a New Pathognomonic Sign for Unstable Posterior Medial Meniscal Tear in Anterior Cruciate Ligament–Deficient Knees
title_sort knee arthroscopy: the “crevice sign,” a new pathognomonic sign for unstable posterior medial meniscal tear in anterior cruciate ligament–deficient knees
topic Technical Note
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7029181/
https://www.ncbi.nlm.nih.gov/pubmed/32099780
http://dx.doi.org/10.1016/j.eats.2019.10.004
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