Related Experiment Video
Updated: Aug 13, 2026
10:42
A Postoperative Evaluation Guideline for Computer-Assisted Reconstruction of the Mandible
Published on: January 28, 2020
Accuracy of a LeFort I maxillary osteotomy
Steven Semaan1, Mithran S Goonewardene
1Dental School, Oral Health Centre of Western Australia, The University of Western Australia, Nedlands, Western Australia, Australia.
The Angle Orthodontist
|February 2, 2006
Summary
LeFort I maxillary osteotomy accuracy was evaluated against surgical predictions. While some discrepancies exist, the procedure demonstrates overall accuracy, with 66% of outcomes within 2mm of prediction.
Area of Science:
- Oral and Maxillofacial Surgery
- Orthodontics
- Craniofacial Surgery
Background:
- Maxillary positioning is critical for combined surgical and orthodontic treatments.
- LeFort I osteotomy is a common procedure for correcting maxillofacial discrepancies.
Purpose of the Study:
- To retrospectively assess the accuracy of LeFort I maxillary osteotomy predictions.
- To compare surgical outcomes between different surgical teams and procedures.
Main Methods:
- Retrospective analysis of 42 patients undergoing LeFort I osteotomy.
- Comparison of presurgical predictions with immediate postsurgical lateral cephalograms using Quick Ceph software.
- Analysis of vertical and horizontal discrepancies at skeletal landmarks.
Main Results:
- Statistically significant differences noted in maxillary molar vertical position and palatal plane angles.
- Surgical team 1 demonstrated less outcome variation than surgical team 2.
- 66% of results were within 2mm, and 26% within 1mm of the surgical prediction.
Conclusions:
- LeFort I maxillary osteotomy is generally accurate, though variations exist.
- Surgical team experience may influence outcome predictability.
- The procedure allows for a wide range of discrepancy correction.
