Med Lasers  
Scar resurfacing treatment with a Q-switched laser using a novel fractional multi-depth focusing handpiece: case reports
Ivan Pérez Haded1, Daniela Sabbagh2
1Department of Dermatology, University Hospital Fundación Santa Fe de Bogotá, University of the Andes, Bogotá, Colombia
2Department of Internal Medicine, University Hospital Fundación Santa Fe de Bogotá, El Bosque University, Bogotá, Colombia
Correspondence to: Ivan Pérez Haded
E-mail: perezdermatologo@gmail.com
ORCID: https://orcid.org/0000-0002-2779-9727
Received: September 25, 2024; Accepted: October 23, 2024; Published online: November 5, 2024.
© Korean Society for Laser Medicine and Surgery. All rights reserved.

This is an open access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/4.0) which permits unrestricted noncommercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abstract
Scar management remains a challenging aspect of dermatology, necessitating effective but minimally invasive treatment modalities. The emergence of the Q-Nd:YAG laser with a MDF handpiece offers a promising solution, combining fractional laser therapy with precise MDF. The present case reports present the initial clinical experiences with this technology in scar resurfacing. This paper describes seven cases involving traumatic and acne scars, treated with the MDF handpiece at 1,064 nm in four sessions spaced one month apart. The treatment yielded significant improvements with minimal adverse effects and high patient satisfaction. The ability of clinicians to tailor the treatment parameters with a Q-Nd:YAG laser, MDF handpiece provided precise control over scar resurfacing, offering a favorable therapeutic option for scar management. This paper highlights the potential of the Q-Nd:YAG laser, MDF handpiece in enhancing the appearance of skin affected by traumatic injuries, underscoring its role as an innovative tool in scar revision therapy.
Keywords: Scar revision; Focused fractional photothermolysis; Traumatic scar; Acne scar

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