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A Novel 3D-Printed Surgical Guide for Multiplanar Chin Reduction in Facial Feminization Surgery.

Sergio Olate1,2, Víctor Ravelo1,3, Alejandro Unibazo4

  • 1Center for Morphological and Surgical Studies (CEMyQ), Universidad de La Frontera, Temuco, Chile.

The Journal of Craniofacial Surgery
|March 23, 2026
PubMed
Summary

This technical note introduces a novel surgical guide for precise facial feminization chin osteotomies. The guide enhances accuracy in vertical, transverse, and sagittal dimensions, improving surgical outcomes.

Keywords:
Facial feminizationorthognathic surgeryosteotomysurgical guide

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Area of Science:

  • Plastic Surgery
  • Oral and Maxillofacial Surgery
  • Surgical Innovation

Background:

  • Facial feminization surgery (FFS) is increasingly common.
  • Technical challenges in FFS, particularly chin osteotomies, require advanced solutions.
  • Current methods for chin reshaping demand high precision and minimally invasive approaches.

Purpose of the Study:

  • To present a novel surgical guide for accurate chin osteotomies.
  • To enable precise vertical, transverse, and sagittal dimension adjustments of the chin.
  • To offer an alternative to screw-anchored guides through maxillomandibular fixation.

Main Methods:

  • Development and application of a single, tooth-stabilized surgical guide.
  • Utilizing maxillomandibular fixation for guide stabilization, avoiding screw anchorage.
  • Performing superior/inferior horizontal osteotomies for volume reduction and midline vertical osteotomies for narrowing.

Main Results:

  • The presented guide allows for accurate osteotomies in all three dimensions (vertical, transverse, sagittal).
  • The single guide system simplifies the procedure for both reduction genioplasty and transverse chin narrowing.
  • Elimination of screw anchorage enhances patient safety and procedural efficiency.

Conclusions:

  • The novel surgical guide offers a precise and stable method for chin osteotomies in FFS.
  • This approach improves treatment options by enabling accurate multi-dimensional chin reshaping.
  • The guide represents a significant advancement in surgical techniques for facial feminization.