A Direct Anatomical Study of the Morphology and Functionality of Disco-malleolar and Anterior Malleolar Ligaments

The disco-malleolar and anterior malleolar ligaments are common to the middle ear, the temporomandibular joint and the jaw, all of them sharing a common embryological origin; these ligaments' morphometric and functional aspects were studied in 23 temporal bones. Experimental design: The epitymp...

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Autores principales:	Ramírez Aristeguieta,Luis Miguel, Ballesteros Acuña,Luis Ernesto, Sandoval Ortiz,German Pablo
Lenguaje:	English
Publicado:	Sociedad Chilena de Anatomía 2009
Materias:	Oscicular chain Temporomadibular joint Otic symptoms Disco-malleolar ligament Anterior malleolar ligament
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022009000200011
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spelling	oai:scielo:S0717-950220090002000112009-09-10A Direct Anatomical Study of the Morphology and Functionality of Disco-malleolar and Anterior Malleolar LigamentsRamírez Aristeguieta,Luis MiguelBallesteros Acuña,Luis ErnestoSandoval Ortiz,German Pablo Oscicular chain Temporomadibular joint Otic symptoms Disco-malleolar ligament Anterior malleolar ligament The disco-malleolar and anterior malleolar ligaments are common to the middle ear, the temporomandibular joint and the jaw, all of them sharing a common embryological origin; these ligaments' morphometric and functional aspects were studied in 23 temporal bones. Experimental design: The epitympanum roof and the temporomandibular joint roof were elevated by micro-dissection of the middle cranial fossa, exposing both disco-malleolar and anterior malleolar ligaments and their association with the malleus, the temporomandibular joint disc and the mandibular lingula. Principal observations: Both ligaments start in the malleus and take anterior and divergent routes towards the temporomandibular joint and lingula, passing through Huguier's canal. The disco-malleolar and anterior malleolar ligaments' mean lengths were 6.88 mm (SD 0.81) and 4.22mm (SD 1.17), respectively, no statistically significant difference being revealed between the sides. Temporomandibular joint disc traction was applied for verifying malleus mobility; malleus movement was observed when applying disco-malleolar traction in 30.5% of the samples. Correlation was observed between malleus movement and disco-malleolar length (R2=-0.499, p<0.05). Both ligaments common to the stomatognathic system and middle ear were present in all specimens. Conclusions: There was an anatomical and functional relationship between human TMJ and the middle ear.info:eu-repo/semantics/openAccessSociedad Chilena de AnatomíaInternational Journal of Morphology v.27 n.2 20092009-06-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022009000200011en10.4067/S0717-95022009000200011
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Oscicular chain Temporomadibular joint Otic symptoms Disco-malleolar ligament Anterior malleolar ligament
spellingShingle	Oscicular chain Temporomadibular joint Otic symptoms Disco-malleolar ligament Anterior malleolar ligament Ramírez Aristeguieta,Luis Miguel Ballesteros Acuña,Luis Ernesto Sandoval Ortiz,German Pablo A Direct Anatomical Study of the Morphology and Functionality of Disco-malleolar and Anterior Malleolar Ligaments
description	The disco-malleolar and anterior malleolar ligaments are common to the middle ear, the temporomandibular joint and the jaw, all of them sharing a common embryological origin; these ligaments' morphometric and functional aspects were studied in 23 temporal bones. Experimental design: The epitympanum roof and the temporomandibular joint roof were elevated by micro-dissection of the middle cranial fossa, exposing both disco-malleolar and anterior malleolar ligaments and their association with the malleus, the temporomandibular joint disc and the mandibular lingula. Principal observations: Both ligaments start in the malleus and take anterior and divergent routes towards the temporomandibular joint and lingula, passing through Huguier's canal. The disco-malleolar and anterior malleolar ligaments' mean lengths were 6.88 mm (SD 0.81) and 4.22mm (SD 1.17), respectively, no statistically significant difference being revealed between the sides. Temporomandibular joint disc traction was applied for verifying malleus mobility; malleus movement was observed when applying disco-malleolar traction in 30.5% of the samples. Correlation was observed between malleus movement and disco-malleolar length (R2=-0.499, p<0.05). Both ligaments common to the stomatognathic system and middle ear were present in all specimens. Conclusions: There was an anatomical and functional relationship between human TMJ and the middle ear.
author	Ramírez Aristeguieta,Luis Miguel Ballesteros Acuña,Luis Ernesto Sandoval Ortiz,German Pablo
author_facet	Ramírez Aristeguieta,Luis Miguel Ballesteros Acuña,Luis Ernesto Sandoval Ortiz,German Pablo
author_sort	Ramírez Aristeguieta,Luis Miguel
title	A Direct Anatomical Study of the Morphology and Functionality of Disco-malleolar and Anterior Malleolar Ligaments
title_short	A Direct Anatomical Study of the Morphology and Functionality of Disco-malleolar and Anterior Malleolar Ligaments
title_full	A Direct Anatomical Study of the Morphology and Functionality of Disco-malleolar and Anterior Malleolar Ligaments
title_fullStr	A Direct Anatomical Study of the Morphology and Functionality of Disco-malleolar and Anterior Malleolar Ligaments
title_full_unstemmed	A Direct Anatomical Study of the Morphology and Functionality of Disco-malleolar and Anterior Malleolar Ligaments
title_sort	direct anatomical study of the morphology and functionality of disco-malleolar and anterior malleolar ligaments
publisher	Sociedad Chilena de Anatomía
publishDate	2009
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022009000200011
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A Direct Anatomical Study of the Morphology and Functionality of Disco-malleolar and Anterior Malleolar Ligaments

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