Palpation of the lateral bands of the extensor apparatus of the fingers. Anatomy of a neglected clinical finding

This study aimed to determine by ultrasonography, and cadaveric dissection, whether the firm cords felt by palpation at the sides of the proximal phalanx (PP), actively flexing, and extending the proximal interphalangeal (PIP) joint while keeping the metacarpophalangeal (MCP) joint extended are the...

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Detalles Bibliográficos
Autores: Canoso, Juan J, Naredo, Esperanza, Martínez Estupiñán, Lina, Mérida Velasco, José Ramón, Pascual Ramos, Virginia, Murillo González, Jorge Alfonso
Tipo de recurso: artículo
Fecha de publicación:2021
País:España
Institución:Universidad Complutense de Madrid (UCM)
Repositorio:Docta Complutense
Idioma:inglés
OAI Identifier:oai:docta.ucm.es:20.500.14352/92011
Acceso en línea:https://hdl.handle.net/20.500.14352/92011
Access Level:acceso abierto
Palabra clave:611
dorsal aponeurosis
extensor apparatus
lateral bands
metacarpophalangeal joint
physical examination
proximal interphalangeal joint
Anatomía
2410.02 Anatomía Humana
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oai_identifier_str oai:docta.ucm.es:20.500.14352/92011
network_acronym_str ES
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repository_id_str
spelling Palpation of the lateral bands of the extensor apparatus of the fingers. Anatomy of a neglected clinical findingCanoso, Juan JNaredo, EsperanzaMartínez Estupiñán, LinaMérida Velasco, José RamónPascual Ramos, VirginiaMurillo González, Jorge Alfonso611dorsal aponeurosisextensor apparatuslateral bandsmetacarpophalangeal jointphysical examinationproximal interphalangeal jointAnatomía2410.02 Anatomía HumanaThis study aimed to determine by ultrasonography, and cadaveric dissection, whether the firm cords felt by palpation at the sides of the proximal phalanx (PP), actively flexing, and extending the proximal interphalangeal (PIP) joint while keeping the metacarpophalangeal (MCP) joint extended are the lateral bands (LBs) of the extensor apparatus. If so, palpation of the LBs could help evaluate hand conditions that impact the digits’ intrinsic muscles. To this end, the PP of the middle and ring fingers of the dominant hand of seven subjects were studied by palpation on both sides. Ultrasonography (US) was performed with a hockey-stick transducer placed on the ulnar side. Five cadaveric hands were dissected, exposing the dorsal extensor apparatus. On palpation, a firm cord was consistently felt at the PP's sides in all subjects. These cords moved widely forward on PIP flexion and backward with PIP extension. By US scanning, the cords corresponded to the LBs. However, the forward movement had only a median of 1.8 mm (range 0.7–3 mm) in the middle finger and a median of 1.1 mm (range 0.3–2.7 mm) in the ring finger compared with an estimated 5–10 mm upon palpation. Cadaveric dissection confirmed the forward movement of the LBs in PIP flexion. We concluded that the firm cords felt at the PP sides are the LBs of the extensor apparatus. We confirmed their movement with the active flexion/extension of the PIP joint. Comparing the wide palpatory and the meager US motion, a haptic illusion of motion may be present.WILEYUniversidad Complutense de Madrid20212021-04-2520212021-04-25journal articlehttp://purl.org/coar/resource_type/c_6501CVoRhttp://purl.org/coar/version/c_e19f295774971610info:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/20.500.14352/92011reponame:Docta Complutenseinstname:Universidad Complutense de Madrid (UCM)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2info:eu-repo/semantics/openAccessoai:docta.ucm.es:20.500.14352/920112026-06-02T12:44:21Z
dc.title.none.fl_str_mv Palpation of the lateral bands of the extensor apparatus of the fingers. Anatomy of a neglected clinical finding
title Palpation of the lateral bands of the extensor apparatus of the fingers. Anatomy of a neglected clinical finding
spellingShingle Palpation of the lateral bands of the extensor apparatus of the fingers. Anatomy of a neglected clinical finding
Canoso, Juan J
611
dorsal aponeurosis
extensor apparatus
lateral bands
metacarpophalangeal joint
physical examination
proximal interphalangeal joint
Anatomía
2410.02 Anatomía Humana
title_short Palpation of the lateral bands of the extensor apparatus of the fingers. Anatomy of a neglected clinical finding
title_full Palpation of the lateral bands of the extensor apparatus of the fingers. Anatomy of a neglected clinical finding
title_fullStr Palpation of the lateral bands of the extensor apparatus of the fingers. Anatomy of a neglected clinical finding
title_full_unstemmed Palpation of the lateral bands of the extensor apparatus of the fingers. Anatomy of a neglected clinical finding
title_sort Palpation of the lateral bands of the extensor apparatus of the fingers. Anatomy of a neglected clinical finding
dc.creator.none.fl_str_mv Canoso, Juan J
Naredo, Esperanza
Martínez Estupiñán, Lina
Mérida Velasco, José Ramón
Pascual Ramos, Virginia
Murillo González, Jorge Alfonso
author Canoso, Juan J
author_facet Canoso, Juan J
Naredo, Esperanza
Martínez Estupiñán, Lina
Mérida Velasco, José Ramón
Pascual Ramos, Virginia
Murillo González, Jorge Alfonso
author_role author
author2 Naredo, Esperanza
Martínez Estupiñán, Lina
Mérida Velasco, José Ramón
Pascual Ramos, Virginia
Murillo González, Jorge Alfonso
author2_role author
author
author
author
author
dc.contributor.none.fl_str_mv Universidad Complutense de Madrid
dc.subject.none.fl_str_mv 611
dorsal aponeurosis
extensor apparatus
lateral bands
metacarpophalangeal joint
physical examination
proximal interphalangeal joint
Anatomía
2410.02 Anatomía Humana
topic 611
dorsal aponeurosis
extensor apparatus
lateral bands
metacarpophalangeal joint
physical examination
proximal interphalangeal joint
Anatomía
2410.02 Anatomía Humana
description This study aimed to determine by ultrasonography, and cadaveric dissection, whether the firm cords felt by palpation at the sides of the proximal phalanx (PP), actively flexing, and extending the proximal interphalangeal (PIP) joint while keeping the metacarpophalangeal (MCP) joint extended are the lateral bands (LBs) of the extensor apparatus. If so, palpation of the LBs could help evaluate hand conditions that impact the digits’ intrinsic muscles. To this end, the PP of the middle and ring fingers of the dominant hand of seven subjects were studied by palpation on both sides. Ultrasonography (US) was performed with a hockey-stick transducer placed on the ulnar side. Five cadaveric hands were dissected, exposing the dorsal extensor apparatus. On palpation, a firm cord was consistently felt at the PP's sides in all subjects. These cords moved widely forward on PIP flexion and backward with PIP extension. By US scanning, the cords corresponded to the LBs. However, the forward movement had only a median of 1.8 mm (range 0.7–3 mm) in the middle finger and a median of 1.1 mm (range 0.3–2.7 mm) in the ring finger compared with an estimated 5–10 mm upon palpation. Cadaveric dissection confirmed the forward movement of the LBs in PIP flexion. We concluded that the firm cords felt at the PP sides are the LBs of the extensor apparatus. We confirmed their movement with the active flexion/extension of the PIP joint. Comparing the wide palpatory and the meager US motion, a haptic illusion of motion may be present.
publishDate 2021
dc.date.none.fl_str_mv 2021
2021-04-25
2021
2021-04-25
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
CVoR
http://purl.org/coar/version/c_e19f295774971610
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://hdl.handle.net/20.500.14352/92011
url https://hdl.handle.net/20.500.14352/92011
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv WILEY
publisher.none.fl_str_mv WILEY
dc.source.none.fl_str_mv reponame:Docta Complutense
instname:Universidad Complutense de Madrid (UCM)
instname_str Universidad Complutense de Madrid (UCM)
reponame_str Docta Complutense
collection Docta Complutense
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15.301603

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