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Unit Advancement Flap for Lower Lip Reconstruction.

Akihiro Ogino1, Kiyoshi Onishi, Emi Okada

  • 1Department of Plastic and Reconstructive Surgery, Toho University Omori Medical Center, Tokyo, Japan.

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Summary

This study presents a simple advancement flap technique for lower lip reconstruction after cancer removal. The method offers stable blood supply and excellent aesthetic results with preserved function.

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Area of Science:

  • Plastic Surgery
  • Oncologic Reconstruction
  • Oral and Maxillofacial Surgery

Background:

  • Lower lip reconstruction necessitates careful planning for aesthetic and functional outcomes.
  • Local tissue reconstruction is a valuable approach for full-thickness lower lip defects.
  • The unit advancement flap is explored for its utility in these reconstructions.

Purpose of the Study:

  • To evaluate the efficacy of a unit advancement flap for lower lip reconstruction.
  • To assess the functional and aesthetic outcomes of this surgical technique.
  • To determine the applicability of the flap for specific defect sizes.

Main Methods:

  • Reconstruction using a unit advancement flap in 4 patients with lower lip squamous cell carcinoma.
  • Resection of tumors with preservation of the mouth angle, involving 50-68% of the lower lip width.
  • Flap elevation as a full-thickness unit from residual lower lip, including orbicularis oris muscle, skin, and mucosa, advanced to the defect.

Main Results:

  • Inconspicuous postoperative scarring observed in all patients.
  • No impairment in mouth opening-closing or articulation functions post-surgery.
  • Stable flap blood supply and successful reconstruction of orbicularis oris muscle continuity.

Conclusions:

  • The unit advancement flap is a simple, effective procedure for lower lip reconstruction.
  • Achieved stable blood supply, preserved oral functions, and superior aesthetic results.
  • Applicable for defects representing 1/3 to 2/3 of the lower lip width with preserved mouth angle.