title: Omega (Ω) Advancement Flap: A Circular Flap Design for the Aesthetic Closure of Circular Skin Defect.
abstract: BACKGROUND
  Most skin defects that require reconstruction with a local skin flap have a circular- or oval-shaped pattern. The majority of the skin flaps are planned in an angled shape. Therefore, it may be necessary to modify the shape of the defect or the distal flap border to minimize tissue distortion. We have designed a circular-shaped advancement flap to be compatible with the circular defect.
  
  
  METHODS
  Eighteen cases of reconstruction of skin defects in the face, chest wall, hand and buttock area were performed using the omega advancement flap between 2010 and 2014. In this technique, a circular-shaped flap that has an equal diameter with the defect is planned adjacent to the defect. To facilitate the advancement of the flap and to avoid standing cones, deepithelialized equilateral triangular flaps are designed on both sides of the main circular flap. The circular flap is easily moved to the defect by pulling of the triangular flaps with minimal tension.
  
  
  RESULTS
  All flaps survived without complication such as infection, hematoma or flap necrosis. No secondary surgery was required to correct contour deformities such as standing cones and trap-door deformities. The results were satisfactory aesthetically and functionally.
  
  
  CONCLUSIONS
  The omega advancement flap is an easy and reliable procedure for reconstruction of circular skin defects located on various anatomical regions.
  
  
  METHODS
  This journal requires that authors assign a level of evidence to each article. For a full description of these Evidence-Based Medicine ratings, please refer to the Table of Contents or the online Instructions to Authors www.springer.com/00266 .
authors.affiliation: Department of Plastic and Reconstructive Surgery, School of Medicine, Baskent University, Hocacihan Mah. Saray Cad. No:1, Selçuklu, Konya, Turkey. arpacie@yahoo.com.
authors.forename: Enver
authors.initials: E
authors.lastname: Arpaci
authors.affiliation: Department of Plastic and Reconstructive Surgery, Firat University School of Medicine, Elazig, Turkey.
authors.forename: Serdar
authors.initials: S
authors.lastname: Altun
authors.affiliation: Department of Plastic and Reconstructive Surgery, School of Medicine, Baskent University, Hocacihan Mah. Saray Cad. No:1, Selçuklu, Konya, Turkey.
authors.forename: Nilgün Markal
authors.initials: NM
authors.lastname: Ertas
authors.affiliation: Department of Plastic and Reconstructive Surgery, School of Medicine, Baskent University, Hocacihan Mah. Saray Cad. No:1, Selçuklu, Konya, Turkey.
authors.forename: Ahmet Cagri
authors.initials: AC
authors.lastname: Uysal
authors.affiliation: Department of Plastic and Reconstructive Surgery, Ankara Yıldırm Beyazıt Training and Research Hospital, Ankara, Turkey.
authors.forename: Emre
authors.initials: E
authors.lastname: Inozu
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D062109:Dermatologic Surgical Procedures / Q000379:methods*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D019651:Plastic Surgery Procedures / Q000379:methods; D012871:Skin Diseases / Q000601:surgery*; D013524:Surgical Flaps; D014947:Wounds and Injuries / Q000601:surgery*
keywords: Advancement; Circular defect; Local skin flap; Omega