Nuevo portal volar en artroscopia de muñeca

Fuente
Este artículo es originalmente publicado en:
http://eprints.ucm.es/38472/

 
De:
Ocampos Hernández, Montserrat (2016) Nuevo portal volar en artroscopia de muñeca. [Tesis Doctoral]

Nuevo portal volar en artroscopia de muñeca

E-Prints Complutense – Universidad Complutense de Madrid
Los portales utilizados en la artroscopia de muñeca inicialmente son portales dorsales. Con el desarrollo de los portales volares, ha sido posible el …

 

Las Reglas de Muñeca de Amsterdam

The Amsterdam wrist rules: the multicenter prospective derivation and external validation of a clinical decisionrule for the use of radiography in acute wrist trauma

Fuente
Este artículo es originalmente publicado en:
http://www.ncbi.nlm.nih.gov/pubmed/26682537
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4683697/
http://bmcmusculoskeletdisord.biomedcentral.com/articles/10.1186/s12891-015-0829-2
De:
Walenkamp MM1, Bentohami A2, Slaar A3, Beerekamp MS4, Maas M5, Jager LC6, Sosef NL7, van Velde R8, Ultee JM9, Steyerberg EW10, Goslings JC11,Schep NW12.
BMC Musculoskelet Disord. 2015 Dec 18;16:389. doi: 10.1186/s12891-015-0829-2.
Todos los derechos reservados para:

TRIAL REGISTRATION:

This study was registered in the Dutch Trial Registry, reference number NTR2544 on October 1(st), 2010.

 

In vitro investigación experimental de la fuerza y torque que actúa sobre el escafoides durante una compresión ligera

In vitro experimental investigation of the forces and torque acting on the scaphoid during light grasp

Fuente
Este artículo es originalmente publicado en:
http://www.ncbi.nlm.nih.gov/pubmed/26800215
http://onlinelibrary.wiley.com/doi/10.1002/jor.23175/abstract
De:
Erhart J1, Unger E2, Schefzig P1, Krumboeck A3, Hagmann M4, Vecsei V1, Mayr W2.
J Orthop Res. 2016 Jan 22. doi: 10.1002/jor.23175. [Epub ahead of print] Todos los derechos reservados para:
This article is protected by copyright. All rights reserved.
Copyright © 1999-2016 John Wiley & Sons, Inc. All Rights Reserved
 

The aim of this study was to measure the magnitude and direction of forces and torque within osteotomized scaphoids within cadaveric wrists during grasping movement of the hand. The mechanical contributions of clinically relevant individual wrist-crossing tendon groups were investigated. Wrists of 8 forearms were immobilized in the sagittal, transverse and coronal plane on a fixation device with unhindered axial gliding. The scaphoid was osteotomized and the fragments stabilized using an interlocking nail. The nail served as a sensor for measurement of inter-fragmentary forces orthogonal and torque around the sensor axis. Thus, torque and cantilever forces were measured which originated between the fragments through co-contraction through the activity of wrist-crossing tendons. Grasping movement of the hand induced a mean maximum torque of 0.038 ± 0.051Nm and a force of 4.01 ± 1.71N on the scaphoid. The isolated activation of thumb tendons resulted in a torque of 9.9E-3  ± 7.7E-3 Nm and a force of 1.42 ± 0.49N. Despite immobilization of the wrist, grasping movement of the hand caused substantial forces and torque within the osteotomized scaphoid bone in varying directions and severity among different specimens. These factors may contribute to the development of nonunions and malunions in unstable scaphoid fractures through interfragmentary micromotion. This article is protected by copyright. All rights reserved.
This article is protected by copyright. All rights reserved.

KEYWORDS:

biomechanics; grasping movement of the hand; scaphoid; wrist

PMID: 26800215 [PubMed – as supplied by publisher]

 

Este es un clásico de #ortopediaconciencia. Una mujer de 64 años, fumadora. Que cae de su plano de sustentación con…

Este es un clásico de #ortopediaconciencia. Una mujer de 64 años, fumadora. Que cae de su plano de sustentación con…
Posted by MediCasos on Lunes, 7 de septiembre de 2015