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A bipedicled keystone perforator island flap: Pedicle division technique with enhanced advancement potential for chronic wound coverage

Authors
 Jung Min Oh  ;  Seung Jun Jwa  ;  Jong Min Won  ;  Woo Yeol Baek  ;  Jong Won Hong  ;  Won Jai Lee  ;  Young Chul Suh 
Citation
 JOURNAL OF PLASTIC RECONSTRUCTIVE AND AESTHETIC SURGERY, Vol.86 : 239-245, 2023-11 
Journal Title
JOURNAL OF PLASTIC RECONSTRUCTIVE AND AESTHETIC SURGERY
ISSN
 1748-6815 
Issue Date
2023-11
MeSH
Humans ; Perforator Flap* / surgery ; Plastic Surgery Procedures* ; Retrospective Studies ; Soft Tissue Injuries* / surgery ; Treatment Outcome ; Wound Healing
Keywords
Chronic wound ; Keystone flap ; Local flap ; Perforator flap ; Reconstruction
Abstract
Since the first description of the keystone perforator island flap (KPIF) in 2003, several modifications have been suggested to enhance its coverage ability. However, locoregional flaps have limited its use in chronic wounds due to decreased elasticity around the defect. We investigated the use of a bipedicled KPIF (bKPIF), which covers a defect while completely elevating the median part of the flap from the fascia. A retrospective chart review of 20 consecutive patients who underwent classical type I KPIF (n = 10) or bKPIF (n = 10) reconstruction from June 2020 to December 2022 was performed. Baseline characteristics, indications, operative details, healing time, and complications were analyzed and compared between the two groups. The average defect size was 30 cm(2) in type I KPIF and 36.6 cm(2) in bKPIF, and an average flap size of 86.5 cm(2) was covered in type I KPIF, larger than bKPIF at 73.8 cm(2). The flap/defect ratio was significantly lower in the bKPIF group (p < 0.02), with an average of only 55% pedicular area. The average advancement distance in the bKPIF group was 1.85 cm (standard deviation 0.78) greater than that in the type 1 KPIF group. There was no significant difference between the groups in terms of operation time, complete healing time, and complications. All ten bKPIFs were successful without any flap necrosis. Even though the mean pedicular area in the bKPIF group was nearly half compared with that in the type I KPIF group, it was sufficient to perfuse the entire flap without any major complications. This novel technique using bKPIF has potential clinical relevance, as evidenced by the enhanced ability to cover chronic defects with severe scarring. Lateralizing the hotspots to the bilateral corners of the flap is the mechanism that facilitates this potential.
Full Text
https://www.sciencedirect.com/science/article/pii/S1748681523005260
DOI
10.1016/j.bjps.2023.09.031
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Plastic and Reconstructive Surgery (성형외과학교실) > 1. Journal Papers
Yonsei Authors
Baek, Wooyeol(백우열) ORCID logo https://orcid.org/0000-0002-6638-4110
Suh, Young Chul(서영철)
Won, Jongmin(원종민)
Lee, Won Jai(이원재) ORCID logo https://orcid.org/0000-0003-3056-0503
Hong, Jong Won(홍종원) ORCID logo https://orcid.org/0000-0002-7762-0940
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/199324
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