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Authors
Friederich, Maximilian
Brunner, Julia
Kirsch, Elke
Stuby, Fabian
Zimmermann, Alexander
Histing, Tina
Hemmann, Philipp
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Funding
Funding for this research was provided by:
Universitätsklinikum Tübingen
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Article History
Received: 5 December 2025
Accepted: 3 February 2026
First Online: 11 February 2026
Declarations
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: The study was conducted in accordance with the Declaration of Helsinki and approved by the Ethics Committee of University of Tübingen (Project no. 339/2019BO2, 17.10.2019). Informed consent was obtained from all individual participants included in the study. The study was registered in the German Clinical Trials Registry (DRKS) under the identification number DRKS00017695 (04.11.2019, ).
: not applicable.
: The authors have no relevant financial or non-financial interests to disclose. The manufacturer of the OPTIVOhand orthosis, OPED GmbH (Valley, Germany), provided external funding for study conduction. Although OPED GmbH had no influence on study design, patient recruitment, data collection, data analysis, results interpretation, or manuscript preparation a potential conflict of interest may exist. The study center received external funding to cover the costs for study materials, medical staff and other costs like publication fees. The funding was not given to the involved medical staff personally.
