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Titolo:
Electromyography of the infrahyoid muscles - Part 3: Findings after transposition as a myofascial flap in tongue reconstruction.
Autore:
Gehrking, E; Klostermann, W; Wessel, K; Remmert, S;
Indirizzi:
Univ Klinikum Lubeck, Klin Hals Nasen & Ohrenheilkunde, D-23538 Lubeck, Germany Univ Klinikum Lubeck Lubeck Germany D-23538 nde, D-23538 Lubeck, Germany Univ Klinikum Lubeck, Ehemals Klin Neurol, D-23538 Lubeck, Germany Univ Klinikum Lubeck Lubeck Germany D-23538 rol, D-23538 Lubeck, Germany Stadt Klinikum Braunschweig, Neurol Klin, Braunschweig, Germany Stadt Klinikum Braunschweig Braunschweig Germany Braunschweig, Germany
Titolo Testata:
LARYNGO-RHINO-OTOLOGIE
fascicolo: 11, volume: 80, anno: 2001,
pagine: 670 - 673
SICI:
1615-0007(200111)80:11<670:EOTIM->2.0.ZU;2-B
Fonte:
ISI
Lingua:
GER
Keywords:
electromyography; infrahyoid muscles; neurovascular myofascial flap; tongue reconstruction; cervical ansa; motor unit potentials; bioelectrical stimulation;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Clinical Medicine
Citazioni:
5
Recensione:
Indirizzi per estratti:
Indirizzo: Gehrking, E Univ Klinikum Lubeck, Klin Hals Nasen & Ohrenheilkunde, Ratzeburger Allee 160, D-23538 Lubeck, Germany Univ Klinikum Lubeck Ratzeburger Allee 160 Lubeck Germany D-23538
Citazione:
E. Gehrking et al., "Electromyography of the infrahyoid muscles - Part 3: Findings after transposition as a myofascial flap in tongue reconstruction.", LARY RH OTO, 80(11), 2001, pp. 670-673

Abstract

Due to the preservation of its nerval supply the neurovascular infrahyoid muscle flap in tongue reconstruction enables to prevent atrophy of the musculature. In this study the integrity of the infrahyoid muscles (IHM) after transposition into the oral cavity was examined by means of electromyography. Methods: 17 patients after partial or complete reconstruction of the tongue with IHM were studied at varied times after surgery. The IHM in the oral cavity was inserted by a concentric needle electrode and activity at restas well as the discharge pattern at maximal voluntary innervation was evaluated. During light voluntary activity a motor unit potential (MUP) analysis were performed. Results: 13 of 17 patients (76,5%) in total revealed electromyographic activity in the transfered IHM flaps. Within the first 6 months after surgery 71,5% of the patients or 77,8% of the IHM flaps showed activity. After 6 months in 61,5% of the patients or 64,7% of the IHM flaps muscular activity was demonstrated. In 84,6% of the patients or 88,2% of the flaps we could detect neurogenic lesions at least once. Maximal voluntary contraction showed a discrete activity pattern in 63%. In 26% of all cases we found a discrete to reduced interference pattern and in 10% a reduced interference pattern. Conclusions: Functioning muscle tissue could be demonstrated in the most IHM flaps, but almost all of the studied muscles showed neurogenic lesions with a loss of motor units due to the traumatic surgery. Maybe bioelectrical stimulation of the Ansa cervicalis with implantable amplifiers will lead to better flap contractility in the future.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 04/04/20 alle ore 21:09:51