{"title":"Thinning of the Medial Sural Artery Perforator Flap: The Anatomical Examination of the Medial Sural Artery Perforator Branch.","authors":"Kittituch Banjongleelahong, Tara Vongviriyangoon, Parkpoom Piyaman, Nutthawut Akaranuchat","doi":"10.1097/GOX.0000000000006232","DOIUrl":null,"url":null,"abstract":"<p><strong>Background: </strong>The medial sural artery perforator (MSAP) flap is thin, pliable, and versatile. This study aims to understand the anatomical basis of the MSAP flap and the subcutaneous course of the perforator for safe flap thinning.</p><p><strong>Methods: </strong>A total of 24 MSAP flaps were dissected under red silicone dye injection guidance. Full-thickness horizontal slides of flaps were performed, and the perforator courses were identified in the subcutaneous plane. Slides were placed on a millimeter board, and the perforator patterns were photographed and observed with loupes.</p><p><strong>Results: </strong>A total of 68 perforator courses were identified: type 1: 30.9%, type 2: 57.3%, and type 3: 11.8%. They traveled 1-25 mm to the subdermal plexus, with percentile 2.5 at 1 mm, percentile 90 at 18.2 mm, percentile 95 at 21.65 mm, and percentile 100 at 25 mm. The mean flap thickness was 7.75 ± 1.7 mm, with an average of 5.7 ± 1.3 perforators per flap. Perforators clustered between 2 and 18.4 cm from the popliteal crease and 0-8 cm from the posterior midline of the leg. The dominant perforators accounted for 45.2% (62 of 137), averaging 2.58 per flap. The medial sural artery branching pattern types were type 1: 37.5%, type 2: 50%, and type 3: 12.5%. The average pedicle length was 16.2 ± 1.3 cm, and the mean external diameter of the medial sural artery was 1.98 ± 0.13 mm.</p><p><strong>Conclusions: </strong>MSAPs branch within a maximal radius of 2.5 cm after emerging from the deep fascia. To maintain vascularity, the safe suprafascial dissection should be 2.5 cm apart from the point of emerging.</p>","PeriodicalId":20149,"journal":{"name":"Plastic and Reconstructive Surgery Global Open","volume":null,"pages":null},"PeriodicalIF":1.5000,"publicationDate":"2024-10-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11519405/pdf/","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Plastic and Reconstructive Surgery Global Open","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1097/GOX.0000000000006232","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"2024/10/1 0:00:00","PubModel":"eCollection","JCR":"Q3","JCRName":"SURGERY","Score":null,"Total":0}
引用次数: 0
Abstract
Background: The medial sural artery perforator (MSAP) flap is thin, pliable, and versatile. This study aims to understand the anatomical basis of the MSAP flap and the subcutaneous course of the perforator for safe flap thinning.
Methods: A total of 24 MSAP flaps were dissected under red silicone dye injection guidance. Full-thickness horizontal slides of flaps were performed, and the perforator courses were identified in the subcutaneous plane. Slides were placed on a millimeter board, and the perforator patterns were photographed and observed with loupes.
Results: A total of 68 perforator courses were identified: type 1: 30.9%, type 2: 57.3%, and type 3: 11.8%. They traveled 1-25 mm to the subdermal plexus, with percentile 2.5 at 1 mm, percentile 90 at 18.2 mm, percentile 95 at 21.65 mm, and percentile 100 at 25 mm. The mean flap thickness was 7.75 ± 1.7 mm, with an average of 5.7 ± 1.3 perforators per flap. Perforators clustered between 2 and 18.4 cm from the popliteal crease and 0-8 cm from the posterior midline of the leg. The dominant perforators accounted for 45.2% (62 of 137), averaging 2.58 per flap. The medial sural artery branching pattern types were type 1: 37.5%, type 2: 50%, and type 3: 12.5%. The average pedicle length was 16.2 ± 1.3 cm, and the mean external diameter of the medial sural artery was 1.98 ± 0.13 mm.
Conclusions: MSAPs branch within a maximal radius of 2.5 cm after emerging from the deep fascia. To maintain vascularity, the safe suprafascial dissection should be 2.5 cm apart from the point of emerging.
期刊介绍:
Plastic and Reconstructive Surgery—Global Open is an open access, peer reviewed, international journal focusing on global plastic and reconstructive surgery.Plastic and Reconstructive Surgery—Global Open publishes on all areas of plastic and reconstructive surgery, including basic science/experimental studies pertinent to the field and also clinical articles on such topics as: breast reconstruction, head and neck surgery, pediatric and craniofacial surgery, hand and microsurgery, wound healing, and cosmetic and aesthetic surgery. Clinical studies, experimental articles, ideas and innovations, and techniques and case reports are all welcome article types. Manuscript submission is open to all surgeons, researchers, and other health care providers world-wide who wish to communicate their research results on topics related to plastic and reconstructive surgery. Furthermore, Plastic and Reconstructive Surgery—Global Open, a complimentary journal to Plastic and Reconstructive Surgery, provides an open access venue for the publication of those research studies sponsored by private and public funding agencies that require open access publication of study results. Its mission is to disseminate high quality, peer reviewed research in plastic and reconstructive surgery to the widest possible global audience, through an open access platform. As an open access journal, Plastic and Reconstructive Surgery—Global Open offers its content for free to any viewer. Authors of articles retain their copyright to the materials published. Additionally, Plastic and Reconstructive Surgery—Global Open provides rapid review and publication of accepted papers.