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DOI: 10.1055/s-0045-1809553
AMIC Technique in the Metacarpophalangeal Joint by Arthroscopy
Artikel in mehreren Sprachen: español | EnglishFunding The author(s) received no financial support for the research.

Abstract
We present the case of a 48-year-old male patient in whom a Grade IV chondral lesion, measuring less than 1 cm2 in surface area, was incidentally observed during the arthroscopic excision of a volar ganglion at the level of the metacarpophalangeal (MCP) joint of the right third digit.
During follow-up consultations, poor clinical progression was noted, with the patient experiencing pain and functional limitation, along with recurrent joint effusions, although maintaining a full range of motion. Given these findings, we decided to perform an arthroscopic joint preservation surgery.
We conducted a revision arthroscopy. Initially, we performed a new synovectomy and debridement of the chondral lesion until the subchondral bone was exposed. Subsequently, we carried out nanofractures (1 mm in thickness and 9 mm in depth) manually using the A2C nanofracture system (up to 15° of angulation), simultaneously implementing a collagen matrix Chondro-Gide® (A2C).
Publikationsverlauf
Eingereicht: 09. Dezember 2024
Angenommen: 24. März 2025
Artikel online veröffentlicht:
21. Juli 2025
© 2025. SECMA Foundation. This is an open access article published by Thieme under the terms of the Creative Commons Attribution-NonDerivative-NonCommercial License, permitting copying and reproduction so long as the original work is given appropriate credit. Contents may not be used for commercial purposes, or adapted, remixed, transformed or built upon. (https://creativecommons.org/licenses/by-nc-nd/4.0/)
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