Common Origin Tendon of the Biceps Femoris and Semitendinosus Muscles, Functional and Clinical Relevance

SUMMARY: The injury of Biceps Femoris long head (BFlh) and Semitendinosus (ST) is caused by over-stretch of the muscles at the back of the thigh. This condition encompasses almost one third of sports-related injuries and has severe consequences, such as pain and weakness of the muscles. This injury...

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Autores principales:	Farfán-C,Emilio, Gaete-C,Marcia, Olivé-V,Ramón, Rodríguez-Baeza,Alfonso
Lenguaje:	English
Publicado:	Sociedad Chilena de Anatomía 2020
Materias:	Origin Tendon Bíceps Femoris Semitendinosus
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022020000501341
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spelling	oai:scielo:S0717-950220200005013412021-06-10Common Origin Tendon of the Biceps Femoris and Semitendinosus Muscles, Functional and Clinical RelevanceFarfán-C,EmilioGaete-C,MarciaOlivé-V,RamónRodríguez-Baeza,Alfonso Origin Tendon Bíceps Femoris Semitendinosus SUMMARY: The injury of Biceps Femoris long head (BFlh) and Semitendinosus (ST) is caused by over-stretch of the muscles at the back of the thigh. This condition encompasses almost one third of sports-related injuries and has severe consequences, such as pain and weakness of the muscles. This injury is related namely to quick and demanding activities, such as short distance sprinting in a limited time period. The Common Origin Tendon (COT) for these two muscles is affected in these injuries. This tendon is formed by the BFlh and ST muscles which together have a common origin in the ischial tuberosity. Given the lack of complete knowledge about the detailed structure of the COT, we dissected cadaveric limbs, describing their morphological characteristics, and discussing its functional and clinical implications.: Thirty-five human cadaveric lower limbs were dissected after fixation to analyze the morphology of the COT, focusing on their volume and muscular/tendinous proportion. We identified two subtypes of COT. The most frequent was the musculotendinous type, in which the origin of the BFlh was mainly tendinous, while the ST muscle was mainly muscular (91.4%). In the tendinous type both muscles had a tendinous origin (8.6%). In the musculotendinous type, the ST muscle ends with a microscopic connective tissue that extend into the ischial tuberosity. We conclude that there is a variability in the anatomical presentations of the COT, and we propose that this will correspond with biomechanical differences in the risks and the response to regional injuries. The connective tissue between the COT and the neighbouring structures could be a risk factor for adhesion tearing.info:eu-repo/semantics/openAccessSociedad Chilena de AnatomíaInternational Journal of Morphology v.38 n.5 20202020-10-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022020000501341en10.4067/S0717-95022020000501341
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Origin Tendon Bíceps Femoris Semitendinosus
spellingShingle	Origin Tendon Bíceps Femoris Semitendinosus Farfán-C,Emilio Gaete-C,Marcia Olivé-V,Ramón Rodríguez-Baeza,Alfonso Common Origin Tendon of the Biceps Femoris and Semitendinosus Muscles, Functional and Clinical Relevance
description	SUMMARY: The injury of Biceps Femoris long head (BFlh) and Semitendinosus (ST) is caused by over-stretch of the muscles at the back of the thigh. This condition encompasses almost one third of sports-related injuries and has severe consequences, such as pain and weakness of the muscles. This injury is related namely to quick and demanding activities, such as short distance sprinting in a limited time period. The Common Origin Tendon (COT) for these two muscles is affected in these injuries. This tendon is formed by the BFlh and ST muscles which together have a common origin in the ischial tuberosity. Given the lack of complete knowledge about the detailed structure of the COT, we dissected cadaveric limbs, describing their morphological characteristics, and discussing its functional and clinical implications.: Thirty-five human cadaveric lower limbs were dissected after fixation to analyze the morphology of the COT, focusing on their volume and muscular/tendinous proportion. We identified two subtypes of COT. The most frequent was the musculotendinous type, in which the origin of the BFlh was mainly tendinous, while the ST muscle was mainly muscular (91.4%). In the tendinous type both muscles had a tendinous origin (8.6%). In the musculotendinous type, the ST muscle ends with a microscopic connective tissue that extend into the ischial tuberosity. We conclude that there is a variability in the anatomical presentations of the COT, and we propose that this will correspond with biomechanical differences in the risks and the response to regional injuries. The connective tissue between the COT and the neighbouring structures could be a risk factor for adhesion tearing.
author	Farfán-C,Emilio Gaete-C,Marcia Olivé-V,Ramón Rodríguez-Baeza,Alfonso
author_facet	Farfán-C,Emilio Gaete-C,Marcia Olivé-V,Ramón Rodríguez-Baeza,Alfonso
author_sort	Farfán-C,Emilio
title	Common Origin Tendon of the Biceps Femoris and Semitendinosus Muscles, Functional and Clinical Relevance
title_short	Common Origin Tendon of the Biceps Femoris and Semitendinosus Muscles, Functional and Clinical Relevance
title_full	Common Origin Tendon of the Biceps Femoris and Semitendinosus Muscles, Functional and Clinical Relevance
title_fullStr	Common Origin Tendon of the Biceps Femoris and Semitendinosus Muscles, Functional and Clinical Relevance
title_full_unstemmed	Common Origin Tendon of the Biceps Femoris and Semitendinosus Muscles, Functional and Clinical Relevance
title_sort	common origin tendon of the biceps femoris and semitendinosus muscles, functional and clinical relevance
publisher	Sociedad Chilena de Anatomía
publishDate	2020
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022020000501341
work_keys_str_mv	AT farfancemilio commonorigintendonofthebicepsfemorisandsemitendinosusmusclesfunctionalandclinicalrelevance AT gaetecmarcia commonorigintendonofthebicepsfemorisandsemitendinosusmusclesfunctionalandclinicalrelevance AT olivevramon commonorigintendonofthebicepsfemorisandsemitendinosusmusclesfunctionalandclinicalrelevance AT rodriguezbaezaalfonso commonorigintendonofthebicepsfemorisandsemitendinosusmusclesfunctionalandclinicalrelevance
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Common Origin Tendon of the Biceps Femoris and Semitendinosus Muscles, Functional and Clinical Relevance

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