Columella lengthening by a vascularized preauricular flap.
BACKGROUND
A short columella can result in significant cosmetic and functional deformities. Various techniques such as local flap transfer and composite grafts have been reported for columellar lengthening, but the overall results remain unsatisfactory. Transferring a local flap cannot provide new tissue for the columella, which limits its application. Composite grafting can provide new tissue volume, and the composite tissue from the preauricular region has an excellent color and texture match. However, the lack of a stable blood supply for the composite graft restricts its clinical application due to problems such as viability, dimensions, and atrophy. To overcome these limitations, the authors harvested a vascularized preauricular flap for columella lengthening.


METHODS
Based on the superficial temporal vessels, the vascularized preauricular flap was harvested as a free flap and transferred to the columella region. The recipient vessels were angular vessels or facial vessels, and microsurgical anastomosis was performed between recipient vessels and the pedicle. The lateral femoral circumflex vessels were used as vascular grafts when the pedicle was not long enough.


RESULTS
Eight patients who had short columellas were reconstructed with vascularized preauricular flaps. Six flaps were harvested in a reverse fashion, and the remaining two flaps were harvested in an anterograde direction. All the flaps survived well and showed a good color and texture match without hypertrophic scars. An average of 13.3 mm improvement in length was obtained for the eight patients. Two patients underwent a secondary debulking procedure to thin the flap.


CONCLUSIONS
The free vascularized preauricular flap procedure is a reliable method for columellar lengthening and has wide clinical application.


METHODS
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Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, 639 Zhi Zao Ju Road, Shanghai, 200011, China.
Fei
F
Liu
Hua
H
Xu
Tao
T
Wang
Jiasheng
J
Dong
Chuanchang
C
Dai
D000293:Adolescent; D000328:Adult; D015331:Cohort Studies; D004954:Esthetics; D005260:Female; D006801:Humans; D008297:Male; D008866:Microsurgery / Q000379:methods; D009666:Nose / Q000002:abnormalities / Q000601:surgery*; D009667:Nose Deformities, Acquired / Q000601:surgery; D019651:Plastic Surgery Procedures / Q000379:methods*; D012189:Retrospective Studies; D012225:Rhinoplasty / Q000379:methods*; D018570:Risk Assessment; D016038:Skin Transplantation / Q000379:methods; D013524:Surgical Flaps / Q000098:blood supply*; D016896:Treatment Outcome; D014945:Wound Healing / Q000502:physiology; D055815:Young Adult