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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Detalhes bibliográficos
Autores: Farfán-C,Emilio, Gaete-C,Marcia, Olivé-V,Ramón, Rodríguez-Baeza,Alfonso
Formato: artículo
Estado:Versión publicada
Fecha de publicación:2020
País:Chile
Recursos:CONICYT Chile
Repositorio:SciELO Chile
OAI Identifier:oai:scielo:S0717-95022020000501341
Acesso em linha:http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022020000501341
Access Level:acceso abierto
Palavra-chave:Origin
Tendon
Bíceps Femoris
Semitendinosus
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oai_identifier_str oai:scielo:S0717-95022020000501341
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spelling Common Origin Tendon of the Biceps Femoris and Semitendinosus Muscles, Functional and Clinical Relevance Farfán-C,Emilio Gaete-C,Marcia Olivé-V,Ramón Rodríguez-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. Sociedad Chilena de Anatomía http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022020000501341
title Common Origin Tendon of the Biceps Femoris and Semitendinosus Muscles, Functional and Clinical Relevance
spellingShingle Common Origin Tendon of the Biceps Femoris and Semitendinosus Muscles, Functional and Clinical Relevance
Farfán-C,Emilio
Origin
Tendon
Bíceps Femoris
Semitendinosus
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
author Farfán-C,Emilio
author_facet Farfán-C,Emilio
Gaete-C,Marcia
Olivé-V,Ramón
Rodríguez-Baeza,Alfonso
author_role author
author2 Gaete-C,Marcia
Olivé-V,Ramón
Rodríguez-Baeza,Alfonso
author2_role author
author
author
topic Origin
Tendon
Bíceps Femoris
Semitendinosus
topic_facet Origin
Tendon
Bíceps Femoris
Semitendinosus
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.
publishDate 2020
format article
status_str publishedVersion
url http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022020000501341
eu_rights_str_mv openAccess
publisher Sociedad Chilena de Anatomía
institution CONICYT
collection SciELO Chile
reponame_str SciELO Chile
instname_str CONICYT Chile
_version_ 1878404189914136576
publishDateSort 2020
author_browse Farfán-C,Emilio
Gaete-C,Marcia
Olivé-V,Ramón
Rodríguez-Baeza,Alfonso
publisherStr Sociedad Chilena de Anatomía
score 6,924472

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