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14th Triennial Congress of the International Federation of Societies for Surgery of the Hand (IFSSH), 11th Triennial Congress of the International Federation of Societies for Hand Therapy (IFSHT)

17.06. - 21.06.2019, Berlin

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Distribution of sensory nerve endings in the interosseous membrane of the forearm

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  • presenting/speaker Susanne Rein - Klinikum Sankt Georg, Plastische und Handchirurgie, Leipzig, Germany
  • Mireia Esplugas - Institut Kaplan, Hand and Upper Extremity Surgery, Barcelona, Spain
  • Marc Garcia-Elias - Institut Kaplan, Hand and Upper Extremity Surgery, Barcelona, Spain
  • Thomas Magin - University of Leipzig, Institute of Biology, Division of Cell and Developmental Biology, Leipzig, Germany
  • Frank Siemers - Trauma Center Bergmannstrost, Department of Plastic and Hand Surgery, Burn Unit, Halle (Saale), Germany
  • Hubertus Philipps - Klinikum Sankt Georg, Plastische und Handchirurgie, Leipzig, Germany

International Federation of Societies for Surgery of the Hand. International Federation of Societies for Hand Therapy. 14th Triennial Congress of the International Federation of Societies for Surgery of the Hand (IFSSH), 11th Triennial Congress of the International Federation of Societies for Hand Therapy (IFSHT), 11th Triennial Congress of the International Federation of Societies for Hand Therapy (IFSHT). Berlin, 17.-21.06.2019. Düsseldorf: German Medical Science GMS Publishing House; 2020. DocIFSSH19-516

doi: 10.3205/19ifssh1310, urn:nbn:de:0183-19ifssh13108

Published: February 6, 2020

© 2020 Rein et al.
This is an Open Access article distributed under the terms of the Creative Commons Attribution 4.0 License. See license information at http://creativecommons.org/licenses/by/4.0/.

Outline

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Objectives/Interrogation: The role of proprioception in understanding the dynamic stability and neuromuscular control of the forearm is important for the treatment of forerarm injuries involving bone, ligaments and joint capsules. Therefore the aim of the study was to investigate types and distribution of sensory nerve endings in the different parts of the human interosseous membrane of the forearm.

Methods: The distal oblique bundle (DOB), the distal accessory bundle (DAB), the central band (CB), the proximal accessory bundle (PAB), the dorsal oblique accessory cord (DOAC), and the proximal oblique cord (POC) were dissected from twelve human fresh frozen cadaver forearms. Sensory nerve endings were analysed in two levels per specimen as total cell amount/mm2 after immunofluorescence staining with low-affinity neurotrophin receptor p75, protein gene product 9.5, S-100 protein and 4,6-Diamidin-2-phenylindol (DAPI) on an Apotome microscope (Carl Zeiss Microscopy, Jena, Germany) according to Freeman and Wyke's classification.

Results and Conclusions:Free nerve endings were the predominant receptor in all six ligaments with greatest density in the DOB followed by POC. The second most sensory nerve endings were unclassifiable corpuscles, followed by Pacini corpuscles. The DOB had the highest amount of Pacini corpuscles followed by the PAB and POC. The DOAC only contained free nerve endings and unclassifiable corpuscles.

The DOB, PAB and POC had the highest density of sensory nerve endings, which indicates, that control of the dynamic stability of the forearm is pronounced at the distal and proximal radioulnar joint due to the closed proximity of the DOB and POC, respectively.