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Neuroplasticity following Nerve Transfer of the Anterior Interosseous Nerve for Proximal Ulnar Nerve Injuries
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- Nyman, Erika (författare)
- Linköpings universitet,Avdelningen för kirurgi, ortopedi och onkologi,Medicinska fakulteten,Region Östergötland, Hand- och plastikkirurgiska kliniken US
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- Nyman, Torbjörn (författare)
- Linköpings universitet,Institutionen för biomedicinska och kliniska vetenskaper,Medicinska fakulteten,Region Östergötland, Smärt och rehabiliteringscentrum
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- Rubensson, Carin, 1972- (författare)
- Linköpings universitet,Institutionen för biomedicinska och kliniska vetenskaper,Medicinska fakulteten,Region Östergötland, Hand- och plastikkirurgiska kliniken US
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- Lippincott, Williams & Wilkins, 2021
- 2021
- Engelska.
- Ingår i: Plastic and Reconstructive Surgery - Global Open. - : Lippincott, Williams & Wilkins. - 2169-7574. ; 9:7
- Tidskriftsartikel (refereegranskat)
Abstract
Ämnesord
Stäng
- Background: Injuries to the ulnar nerve at or above proximal forearm level result in poor recovery despite early microsurgical repair, especially concerning the intrinsic motor function of the hand. To augment the numbers of regenerating axons into the targeted muscles, a nerve transfer of the distal branch of the median nerve, the anterior interosseous nerve, to the ulnar motor branch has been described. Methods: Two patients with severe atrophy of the intrinsic hand muscles following an initial proximal ulnar nerve repair had surgery with an end-to-side transfer of the anterior interosseous nerve to the ulnar motor branch at the wrist level. Outcome and neuroplasticity were prospectively studied using questionnaires, clinical examinations, electroneurography, electromyography, somatosensory evoked potentials at pre nerve transfer and 3-, 12-, and 24-months post nerve transfer as well as navigated transcranial magnetic stimulation at pre nerve transfer and 3- and 12-months post nerve transfer. Results: Successively improved motor function was observed. Complete reinnervation of intrinsic hand muscles was demonstrated at 12- to 24-months follow-up by electroneurography and electromyography. At the cortical level, navigated transcranial magnetic stimulation detected a movement of the hot-spot for the abductor digiti mini muscle, originally innervated by the ulnar nerve and the size of the area from where responses could be elicited in this muscle changed over time, indicating central plastic processes. An almost complete reinnervation of the pronator quadratus muscle was also observed. Conclusion: Both central and peripheral plastic mechanisms are involved in muscle reinnervation after anterior interosseous nerve transfer for treatment of proximal ulnar nerve injuries.
Ämnesord
- MEDICIN OCH HÄLSOVETENSKAP -- Klinisk medicin -- Kirurgi (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Clinical Medicine -- Surgery (hsv//eng)
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- ref (ämneskategori)
- art (ämneskategori)
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- Plastic and Reconstructive Surgery - Global Open (Sök värdpublikationen i LIBRIS)
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- Nyman, Erika
- Nyman, Torbjörn
- Rubensson, Carin ...
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