Imperial College London
Portrait Picture

Angela Kedgley

Faculty of Engineering, Department of Bioengineering

Reader in Orthopaedic Biomechanics
 
 
 
//

Contact

 

+44 (0)20 7594 0747a.kedgley Website

 
 
//

Location

 

514BSir Michael Uren HubWhite City Campus

//

Summary

 

Publications

Citation

BibTex format

@article{Shah:2018:10.1016/j.jbiomech.2018.07.011,
author = {Shah, D and Middleton, C and Gurdezi, S and Horwitz, M and Kedgley, AE},
doi = {10.1016/j.jbiomech.2018.07.011},
journal = {Journal of Biomechanics},
pages = {218--222},
title = {The importance of abductor pollicis longus in wrist motions: a physiological wrist simulator study},
url = {http://dx.doi.org/10.1016/j.jbiomech.2018.07.011},
volume = {77},
year = {2018}
}
Download

RIS format (EndNote, RefMan)

TY  - JOUR
AB  - The abductor pollicis longus (APL) is one of the primary radial deviators of the wrist, owing to its insertion at the base of the first metacarpal and its large moment arm about the radioulnar deviation axis. Although it plays a vital role in surgical reconstructions of the wrist and hand, it is often neglected while simulating wrist motions in vitro. The aim of this study was to observe the effects of the absence of APL on the distribution of muscle forces during wrist motions. A validated physiological wrist simulator was used to replicate cyclic planar and complex wrist motions in cadaveric specimens by applying tensile loads to six wrist muscles – flexor carpi radialis (FCR), flexor carpi ulnaris, extensor carpi radialis longus (ECRL), extensor carpi radialis brevis, extensor carpi ulnaris (ECU) and APL. Resultant muscle forces for active wrist motions with and without actuating the APL were compared. The absence of APL resulted in higher forces in FCR and ECRL – the synergists of APL – and lower forces in ECU – the antagonist of APL. The altered distribution of wrist muscle forces observed in the absence of active APL control could significantly alter the efficacy of in vitro experiments conducted on wrist simulators, in particular when investigating those surgical reconstructions or rehabilitation of the wrist heavily reliant on the APL, such as treatments for basal thumb osteoarthritis.
AU  - Shah,D
AU  - Middleton,C
AU  - Gurdezi,S
AU  - Horwitz,M
AU  - Kedgley,AE
DO  - 10.1016/j.jbiomech.2018.07.011
EP  - 222
PY  - 2018///
SN  - 0021-9290
SP  - 218
TI  - The importance of abductor pollicis longus in wrist motions: a physiological wrist simulator study
T2  - Journal of Biomechanics
UR  - http://dx.doi.org/10.1016/j.jbiomech.2018.07.011
UR  - http://hdl.handle.net/10044/1/61945
VL  - 77
ER  -
Download