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Acute improvement of contralateral hand function after deafferentation

Björkman, Anders LU ; Rosen, B and Lundborg, Göran LU (2004) 9th Congress of the International-Federation-of-Societies-for-Surgery-of-the-Hand In Proceeding of 9th Congress of the International Federation of Societies for Surgery of the Hand p.173-175
Abstract
To study cortical re-organisation after acute hand deafferentation, we investigated 10 experimental subjects and 10 controls for function in the left hand, before, during and after tourniquet induced anaesthesia of the right hand. fMRI was performed in three experimental subjects. Tourniquet-induced right hand anaesthesia resulted in rapid significant improvement in grip strength, tactile discrimination and perception of touch in the left hand. Tactile discrimination and grip strength improvements remained at least 15 minutes after anaesthesia. fMRI showed increased activation in the right primary motor cortex after anaesthesia. Deafferentation of the hand induces significant improvement in contralateral hand function. This finding may... (More)
To study cortical re-organisation after acute hand deafferentation, we investigated 10 experimental subjects and 10 controls for function in the left hand, before, during and after tourniquet induced anaesthesia of the right hand. fMRI was performed in three experimental subjects. Tourniquet-induced right hand anaesthesia resulted in rapid significant improvement in grip strength, tactile discrimination and perception of touch in the left hand. Tactile discrimination and grip strength improvements remained at least 15 minutes after anaesthesia. fMRI showed increased activation in the right primary motor cortex after anaesthesia. Deafferentation of the hand induces significant improvement in contralateral hand function. This finding may have a potential clinical application for evolving sensory relearning strategies after nerve repair. (Less)
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organization
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type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
in
Proceeding of 9th Congress of the International Federation of Societies for Surgery of the Hand
pages
173 - 175
publisher
Medimond
conference name
9th Congress of the International-Federation-of-Societies-for-Surgery-of-the-Hand
external identifiers
  • wos:000225376400032
  • scopus:4444329943
language
English
LU publication?
yes
id
ed33bff0-3c46-4349-8306-5fefdf122415 (old id 1406178)
date added to LUP
2009-06-05 11:17:29
date last changed
2017-01-01 08:00:12
@inproceedings{ed33bff0-3c46-4349-8306-5fefdf122415,
  abstract     = {To study cortical re-organisation after acute hand deafferentation, we investigated 10 experimental subjects and 10 controls for function in the left hand, before, during and after tourniquet induced anaesthesia of the right hand. fMRI was performed in three experimental subjects. Tourniquet-induced right hand anaesthesia resulted in rapid significant improvement in grip strength, tactile discrimination and perception of touch in the left hand. Tactile discrimination and grip strength improvements remained at least 15 minutes after anaesthesia. fMRI showed increased activation in the right primary motor cortex after anaesthesia. Deafferentation of the hand induces significant improvement in contralateral hand function. This finding may have a potential clinical application for evolving sensory relearning strategies after nerve repair.},
  author       = {Björkman, Anders and Rosen, B and Lundborg, Göran},
  booktitle    = {Proceeding of 9th Congress of the International Federation of Societies for Surgery of the Hand},
  language     = {eng},
  pages        = {173--175},
  publisher    = {Medimond},
  title        = {Acute improvement of contralateral hand function after deafferentation},
  year         = {2004},
}