An ossifying bridge – on the structural continuity between the Achilles tendon and the plantar fascia

Abstract Highly regular aligned trabeculae are found in the superficial posterior and inferior calcaneus appearing to connect the Achilles tendon (AT) to the plantar fascia (PF) in a bridge-like manner. This provides a morphological basis for the stretching-based heel pain treatment. However, the co...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Johann Zwirner, Ming Zhang, Benjamin Ondruschka, Keichi Akita, Niels Hammer
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2020
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/2c5bda47203b4698990c1aed070328c2
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:2c5bda47203b4698990c1aed070328c2
record_format	dspace
spelling	oai:doaj.org-article:2c5bda47203b4698990c1aed070328c22021-12-02T19:09:30ZAn ossifying bridge – on the structural continuity between the Achilles tendon and the plantar fascia10.1038/s41598-020-71316-z2045-2322https://doaj.org/article/2c5bda47203b4698990c1aed070328c22020-09-01T00:00:00Zhttps://doi.org/10.1038/s41598-020-71316-zhttps://doaj.org/toc/2045-2322Abstract Highly regular aligned trabeculae are found in the superficial posterior and inferior calcaneus appearing to connect the Achilles tendon (AT) to the plantar fascia (PF) in a bridge-like manner. This provides a morphological basis for the stretching-based heel pain treatment. However, the continuity of collagen fibres between the AT and the PF remains debated controversially to date. The given study morphologically investigated the AT-calcaneus-PF complex using histology and plastination. Moreover, the AT-calcaneus-PF complex was biomechanically mapped based on 13 sub-regions with a total of 76 tested samples. Regular calcaneal trabeculae were surrounded by tendon-like collagen fibre bundles and adipocytes. The orientation of calcaneal trabeculae was further closely related to the course of the PF collagen fibre bundles. The pooled biomechanical analysis revealed low elastic moduli (minimum = 4 MPa) and ultimate tensile strengths of the decalcified calcaneal samples (minimum = 0.4 MPa) and the calcaneal periostea (minimum = 2 MPa) and high respective values (elastic modulus maximum of 144 MPa; ultimate tensile strength maximum of 29 MPa) for the PF samples compared to the other sub-regions. This study provides structural evidence for a morphological connection between the AT and PF via the highly aligned calcaneal trabeculae of the posterior calcaneus. The AT-calcaneus-PF complex was biomechanically mapped to allow for an assessment of its site-dependent mechanical characteristics.Johann ZwirnerMing ZhangBenjamin OndruschkaKeichi AkitaNiels HammerNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 10, Iss 1, Pp 1-10 (2020)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Johann Zwirner Ming Zhang Benjamin Ondruschka Keichi Akita Niels Hammer An ossifying bridge – on the structural continuity between the Achilles tendon and the plantar fascia
description	Abstract Highly regular aligned trabeculae are found in the superficial posterior and inferior calcaneus appearing to connect the Achilles tendon (AT) to the plantar fascia (PF) in a bridge-like manner. This provides a morphological basis for the stretching-based heel pain treatment. However, the continuity of collagen fibres between the AT and the PF remains debated controversially to date. The given study morphologically investigated the AT-calcaneus-PF complex using histology and plastination. Moreover, the AT-calcaneus-PF complex was biomechanically mapped based on 13 sub-regions with a total of 76 tested samples. Regular calcaneal trabeculae were surrounded by tendon-like collagen fibre bundles and adipocytes. The orientation of calcaneal trabeculae was further closely related to the course of the PF collagen fibre bundles. The pooled biomechanical analysis revealed low elastic moduli (minimum = 4 MPa) and ultimate tensile strengths of the decalcified calcaneal samples (minimum = 0.4 MPa) and the calcaneal periostea (minimum = 2 MPa) and high respective values (elastic modulus maximum of 144 MPa; ultimate tensile strength maximum of 29 MPa) for the PF samples compared to the other sub-regions. This study provides structural evidence for a morphological connection between the AT and PF via the highly aligned calcaneal trabeculae of the posterior calcaneus. The AT-calcaneus-PF complex was biomechanically mapped to allow for an assessment of its site-dependent mechanical characteristics.
format	article
author	Johann Zwirner Ming Zhang Benjamin Ondruschka Keichi Akita Niels Hammer
author_facet	Johann Zwirner Ming Zhang Benjamin Ondruschka Keichi Akita Niels Hammer
author_sort	Johann Zwirner
title	An ossifying bridge – on the structural continuity between the Achilles tendon and the plantar fascia
title_short	An ossifying bridge – on the structural continuity between the Achilles tendon and the plantar fascia
title_full	An ossifying bridge – on the structural continuity between the Achilles tendon and the plantar fascia
title_fullStr	An ossifying bridge – on the structural continuity between the Achilles tendon and the plantar fascia
title_full_unstemmed	An ossifying bridge – on the structural continuity between the Achilles tendon and the plantar fascia
title_sort	ossifying bridge – on the structural continuity between the achilles tendon and the plantar fascia
publisher	Nature Portfolio
publishDate	2020
url	https://doaj.org/article/2c5bda47203b4698990c1aed070328c2
work_keys_str_mv	AT johannzwirner anossifyingbridgeonthestructuralcontinuitybetweentheachillestendonandtheplantarfascia AT mingzhang anossifyingbridgeonthestructuralcontinuitybetweentheachillestendonandtheplantarfascia AT benjaminondruschka anossifyingbridgeonthestructuralcontinuitybetweentheachillestendonandtheplantarfascia AT keichiakita anossifyingbridgeonthestructuralcontinuitybetweentheachillestendonandtheplantarfascia AT nielshammer anossifyingbridgeonthestructuralcontinuitybetweentheachillestendonandtheplantarfascia AT johannzwirner ossifyingbridgeonthestructuralcontinuitybetweentheachillestendonandtheplantarfascia AT mingzhang ossifyingbridgeonthestructuralcontinuitybetweentheachillestendonandtheplantarfascia AT benjaminondruschka ossifyingbridgeonthestructuralcontinuitybetweentheachillestendonandtheplantarfascia AT keichiakita ossifyingbridgeonthestructuralcontinuitybetweentheachillestendonandtheplantarfascia AT nielshammer ossifyingbridgeonthestructuralcontinuitybetweentheachillestendonandtheplantarfascia
_version_	1718377079234363392

An ossifying bridge – on the structural continuity between the Achilles tendon and the plantar fascia

Ejemplares similares