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Open Access
CC BY-NC-ND 4.0 · Arch Plast Surg 2022; 49(06): 704-709
DOI: 10.1055/s-0042-1756286
Cosmetic
Original Article

The Treatment of Linear and Narrow Scar after Craniotomy Using the Follicular Unit Excision

Autoren

  • Hiromi Okochi 

    1   Department of Plastic and Reconstructive Surgery, Yamanashi University, Kofu, Yamanashi, Japan

  • Masamitsu Onda 

    2   Shinwa Clinic, Tokyo, Japan

  • Akira Momosawa 

    1   Department of Plastic and Reconstructive Surgery, Yamanashi University, Kofu, Yamanashi, Japan

  • Masayuki Okochi 

    1   Department of Plastic and Reconstructive Surgery, Yamanashi University, Kofu, Yamanashi, Japan

Funding None.
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Abstract

Background The scar alopecia after cranioplasty (SAC) may decrease the patient's quality of life. We have treated SAC using follicular unit extraction (FUE). The aim of this study was to discuss that efficacy of FUE and how much hair follicular unit (FU) should be transplanted intraoperatively for the treatment of SAC.

Methods We treated 10 patients (4 men and 6 women) who had SAC using FUE.

Results The average age, alopecia size, and intraoperative hair density on the graft area were 29.8 ± 12.1 years, 29.8 ± 44.5 cm2, and 34.6 ± 11.8 FU/cm2, respectively. One year postoperatively, the average hair survival rate on the graft area was 66.3 ± 6.1%. Hair appearance was rated as good in six, fair in three, and poor in one. Among patients whose 1-year postoperative hair density was ≥ 20 FU/cm2, five of six patients achieved good results. However, among patients whose 1-year postoperative hair density was < 20 FU/cm2, all four patients achieved fair or poor results. The postoperative hair density was significantly higher in patients whose 1-year postoperative hair density was ≥ 20 FU/cm2 than in patients whose 1-year postoperative hair density was < 20 FU/cm2. The rate of achieving fair or poor results was significantly higher if the postoperative hair density was < 20 FU/cm2 than if it was ≥ 20 FU/cm2 (p = 0.047).

Conclusions FU excision is useful for the treatment of scar alopecia after craniotomy. Our results suggest that the 1-year postoperative hair density should exceed 20 FU/cm2 to achieve good outcomes.

Keywords

hair restoration - craniotomy - scar alopecia - follicular unit extraction

Ethical Approval

The study was approved by the Institutional Review Board of Shinwa Clinic (IRB No. SC-2022–01) and performed in accordance with the principles of the Declaration of Helsinki.


Patient Consent

The patients provided written informed consent for the publication and the use of their images


Authors' Contributions

Conceptualization: M.O., H.O.

Data curation: H.O.

Formal analysis, methodology: M.O.

Writing - original draft: H.O.

Review and editing: M.O., A.M.




Publikationsverlauf

Eingereicht: 07. Dezember 2021

Angenommen: 09. Juni 2022

Artikel online veröffentlicht:
13. Dezember 2022

© 2022. The Korean Society of Plastic and Reconstructive Surgeons. 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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