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DOI: 10.1055/s-2004-830375
Georg Thieme Verlag KG Stuttgart · New York
Nachweis daumenspezifischer Muskulatur beim triphalangealen Daumen mittels MRT
Verification of Thumb-Specific Muscles in a Triphalangeal Thumb with Magnetic Resonance ImagingPublication History
Eingang des Manuskriptes: 20.4.2004
Angenommen: 1.9.2004
Publication Date:
04 July 2005 (online)

Zusammenfassung
Das Vorhandensein von drei Phalangen am radialen ersten Handstrahl gilt als relativ seltene Malformation der Hand. Dabei werden sechs Typen von Triphalangismen unterschieden, wobei einige opponierbar sind, andere einer nicht opponierbaren „Fünf-Finger-Hand“ ähneln. Bei hypoplastischem Thenar und eingeschränkter Opposition war bis jetzt der Nachweis einer für den ersten Strahl spezifischen Muskulatur in vivo kaum durchführbar. Wir berichten über die Möglichkeit eines klaren, nicht-invasiven Nachweises daumenspezifischer Muskulatur mittels MRT.
Abstract
The presence of three phalanges in the first digit is considered to be a relatively rare congenital hand malformation. Six groups of this deformity can be distinguished: some digits are opposable, others resemble a non-opposable five-fingered hand. In cases of a hypoplastic thenar region with a restrained opposition, a clear verification of thumb-specific musculature has been hardly possible. We report of the possibility of a non-invasive identification of thumb-specific muscles by means of magnetic resonance imaging.
Schlüsselwörter
Angeborene Handfehlbildung - triphalangealer Daumen - Thenarmuskulatur - MRT
Key words
Triphalangeal thumb - congenital hand malformation - MRI - thenar-specific muscles
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Dr. med. Konstantina Belouli
Departement Chirurgie
Klinik für Wiederherstellungschirurgie
Universitätsspital Zürich
8091 Zürich
Schweiz
Email: konstantina.belouli@usz.ch