gms | German Medical Science

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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The Safety of the Volar Midcarpal Portals in Wrist Arthroscopy

Meeting Abstract

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  • presenting/speaker Sanjeev Kakar - Mayo Clinic, Rochester, United States
  • Josh Gillis - Mayo Clinic, Rochester, United States

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. DocIFSSH19-389

doi: 10.3205/19ifssh1033, urn:nbn:de:0183-19ifssh10335

Published: February 6, 2020

© 2020 Kakar 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: To describe the safe placement of volar midcarpal portals using the inside out technique and the surrounding anatomical structures at risk.

Methods: Five fresh frozen cadavers were used after institutional approval. Volar midcarpal ulnar (VUMC) and radial (VRMC) portals were placed using an inside out technique. The distance between these portals to surrounding anatomical structures was measured using a caliper, in millimeters.

Results and Conclusions: The VUMC portal pierced the flexor digitorum profundus (FDP) tendon to the long finger in one specimen. The portal was an average 3.7 and 8.4 mm away from the ulnar artery and nerve, respectively. The VRMC portal pierced the palmaris longus in two specimens. It usually was between the flexor pollicus longus, palmaris longus and median nerve. It was an average 1.0 and 1.95 mm away from the median nerve and palmar cutaneous branch of the median nerve, respectively and in one specimen, was in contact with the median nerve.

With increasing use of volar midcarpal arthroscopy, the surgeon needs to have an understanding of the structures at risk when placing the VUMC and VRMC portals.