Medical Lasers; Engineering, Basic Research, and Clinical Application  
Combination Treatment of Nd:YAG Picosecond-domain Laser and Fractional CO2 Laser for Contracted Neck Scar with Hyperpigmentation
Woo Jung Choi1, Eun Soo Park2, Min Sung Tak1, Sang Gue Kang1
1Department of Plastic & Reconstructive Surgery, Soonchunhyang University Bucheon Hospital, Bucheon, Korea
2Department of Plastic & Reconstructive Surgery, Soonchunhyang University Seoul Hospital, Seoul, Korea
Correspondence to: Eun Soo Park
Department of Plastic and Reconstructive Surgery, Soonchunhyang University Bucheon Hospital, 1174 Jomaru-ro, Wonmi-gu, Bucheon 14584, Korea
Tel.: +82-32-621-5319
Fax: +82-32-621-5016
Received: December 8, 2020; Accepted: January 6, 2021; Published online: February 5, 2021.
© Korean Society for Laser Medicine and Surgery. All rights reserved.

There is growing interest in minimizing postoperative scarring after a thyroidectomy. Among the many treatment types, laser therapy, especially picosecond-domain laser therapy, is accepted as a standard method. In the present case, a patient with a pigmented, contracted scar was treated using the combination of a picosecond laser and ablative fractional (AF) CO2 laser. After 15 sessions of 1,064-nm picosecond with micro lens array (MLA) and AF CO2 laser application, the patient showed significant improvement in their pigmented lesions and scar contracture with no noticeable side effects for 16 months. These results suggest that a combination of picosecond laser with MLA and AF CO2 laser can treat pigmented, contracted scars safely and effectively.
Keywords: Laser therapy; Pigmented scars; Contracted scars; Picosecond laser; CO2 laser

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