Acute improvement of contralateral hand function after deafferentation

Anders Björkman; B Rosen; Göran Lundborg

Acute improvement of contralateral hand function after deafferentation

Anders Björkman, B Rosen, Göran Lundborg

Handkirurgi, Malmö

Forskningsoutput: Kapitel i bok/rapport/Conference proceeding › Konferenspaper i proceeding › Peer review

Sammanfattning

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.

Originalspråk	engelska
Titel på värdpublikation	Proceeding of 9th Congress of the International Federation of Societies for Surgery of the Hand
Förlag	Medimond
Sidor	173-175
Status	Published - 2004
Evenemang	9th Congress of the International-Federation-of-Societies-for-Surgery-of-the-Hand - Budapest, Ungern Varaktighet: 2004 juni 13 → 2004 juni 17

Konferens

Konferens	9th Congress of the International-Federation-of-Societies-for-Surgery-of-the-Hand
Land/Territorium	Ungern
Ort	Budapest
Period	2004/06/13 → 2004/06/17

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@inproceedings{ed33bff03c46434983065fefdf122415,

title = "Acute improvement of contralateral hand function after deafferentation",

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 = "Anders Bj{\"o}rkman and B Rosen and G{\"o}ran Lundborg",

year = "2004",

language = "English",

pages = "173--175",

booktitle = "Proceeding of 9th Congress of the International Federation of Societies for Surgery of the Hand",

publisher = "Medimond",

note = "9th Congress of the International-Federation-of-Societies-for-Surgery-of-the-Hand ; Conference date: 13-06-2004 Through 17-06-2004",

}

TY - GEN

T1 - Acute improvement of contralateral hand function after deafferentation

AU - Björkman, Anders

AU - Rosen, B

AU - Lundborg, Göran

PY - 2004

Y1 - 2004

N2 - 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.

AB - 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.

M3 - Paper in conference proceeding

SP - 173

EP - 175

BT - Proceeding of 9th Congress of the International Federation of Societies for Surgery of the Hand

PB - Medimond

T2 - 9th Congress of the International-Federation-of-Societies-for-Surgery-of-the-Hand

Y2 - 13 June 2004 through 17 June 2004

ER -

Acute improvement of contralateral hand function after deafferentation

Sammanfattning

Konferens

Ämnesklassifikation (UKÄ)

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