Superior-Based Transposition Flap: A Novel Technique in Rhinoplasty.

Area of Science:

• Plastic Surgery
• Rhinoplasty Techniques
• Nasal Anatomy

Background:

• Cephalic trimming of the lower lateral cartilage (LLC) can lead to pinched nose deformities and valve collapse.
• Existing techniques for LLC modification carry risks of aesthetic and functional compromise.

Purpose of the Study:

• To introduce and evaluate the superior-based transposition (ST) flap for LLC reshaping and support.
• To improve nasal tip aesthetics and internal/external valve function using the ST flap.

Main Methods:

• A retrospective analysis of 367 patients undergoing rhinoplasty with the ST flap technique.
• The ST flap is created from the scroll area of the LLC and advanced over the remaining cartilage.
• The scroll area of the LLC is preserved throughout the procedure.

Main Results:

• The ST flap successfully reshaped and supported the LLC, enhancing internal valve angle and function.
• The technique prevented complications like nasal valve stenosis and improved tip aesthetics.
• Aesthetically, the flap allowed for correction of LLC convexity/concavity, resulting in a refined nasal tip.

Conclusions:

• The ST flap is a versatile maneuver in rhinoplasty for LLC support and reshaping.
• It offers functional benefits by improving nasal valve support and aesthetic advantages for nasal tip refinement.
• Preserving the scroll area with the ST flap technique is crucial for maintaining structural integrity.