[The 3D printed drilling template for bilateral sagittal osteotomy].

Area of Science:

• Oral and Maxillofacial Surgery
• Orthognathic Surgery
• Biomedical Engineering

Background:

• Bilateral sagittal osteotomy (BSSO) is a common orthognathic surgery technique.
• Osteotomy design and bone cut positioning in BSSO lack standardization and are debated.
• Standardization is desirable, particularly for research purposes.

Purpose of the Study:

• To evaluate the utility of a pre-operative 3D printed biocompatible drilling template for guiding bone cuts in BSSO.
• To assess the accuracy of planned bone cuts versus actual bone cuts using this template.

Main Methods:

• A 3D printed biocompatible drilling template was designed and manufactured for one patient based on pre-operative planning.
• The template was used to guide saw cuts during the BSSO procedure.

Main Results:

• A significant difference was observed between the pre-operatively planned bone cuts and the actual bone cuts achieved with the template's assistance.
• The accuracy of the 3D printed template in guiding precise osteotomies requires further investigation.

Conclusions:

• While 3D printed drilling templates offer a novel approach to pre-operative planning in BSSO, their current accuracy is limited.
• Further refinement of template design and surgical technique is necessary to improve precision in orthognathic surgery.