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Triangular Fossa Cartilage Graft in Rhinoplasty: A Three-Dimensional Anatomical and Technical Feasibility Study.

Chih-Jung Huang^1,2, Cheng-I Yen¹, Chun-Shin Chang³

¹Department of Plastic and Reconstructive Surgery, Chang Gung Memorial Hospital at Linkou, Taoyuan, Taiwan.

Plastic and Reconstructive Surgery

|December 3, 2025

Summary

This summary is machine-generated.

This study introduces a new technique for harvesting ear cartilage, combining conchal and triangular fossa grafts through a single incision. This method enhances graft availability for rhinoplasty, especially in revision cases, without compromising ear aesthetics.

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Area of Science:

Plastic Surgery
Otolaryngology
Anatomy

Background:

Autogenous cartilage grafts are crucial for structural integrity in aesthetic rhinoplasty.
Conchal cartilage volume can be insufficient, particularly in revision rhinoplasty.
Current methods may require separate donor sites, increasing morbidity.

Purpose of the Study:

To present a novel technique for simultaneous harvesting of conchal and triangular fossa cartilage.
To evaluate the feasibility and aesthetic outcomes of this combined graft harvesting method.
To assess the impact on auricular morphology and donor site stability.

Main Methods:

Retrospective analysis of 14 patients (15 ear donor sites).
Simultaneous harvesting of conchal and triangular fossa cartilage via a single posterior auricular incision.
Three-dimensional (3D) imaging for postoperative auricular morphology assessment.
Classification into groups based on graft type and helix crux preservation.

Main Results:

No significant differences in ear height, width, or conchal cavity dimensions postoperatively.
A mild, non-deforming reduction in triangular fossa area was observed.
Preservation of the helix crux maintained antihelix curvature and donor site stability.
The technique effectively increased available graft material without additional donor sites.

Conclusions:

Simultaneous harvesting of conchal and triangular fossa cartilage is a viable technique for rhinoplasty.
This approach expands graft availability, particularly beneficial for revision cases.
The method minimizes donor site morbidity while preserving auricular aesthetics and stability.