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[Justification for the mandibular-maxillary order in bimaxillary osteotomy]
J-L Béziat1, B Babic, S Ferreira
1Service de chirurgie cranio-maxillo-faciale, groupement hospitalier Nord, 103, grande rue de la Croix-Rousse, 69317 Lyon cedex 04, France. jean-luc.beziat@chu-lyon.fr
Revue De Stomatologie Et De Chirurgie Maxillo-Faciale
|November 27, 2009
Summary
Sagittal split osteotomy is less accurate than Le Fort I osteotomy in bimaxillary surgery. Performing Le Fort I osteotomy first allows for correction of sagittal split errors, leading to better surgical outcomes.
Area of Science:
- Oral and Maxillofacial Surgery
- Orthognathic Surgery
Context:
- Bimaxillary osteotomy involves complex surgical procedures to correct jaw discrepancies.
- Assessing the precision of individual osteotomy techniques is crucial for predictable results.
Purpose:
- To evaluate the reliability of sagittal split osteotomy and Le Fort I osteotomy.
- To objectively determine the impact of the surgical sequence on bimaxillary osteotomy outcomes.
Summary:
- Sagittal split osteotomies exhibited inaccuracies in 74% of cases (anteroposterior) and 54% (transversal).
- Le Fort I osteotomies demonstrated high accuracy, with 92% of cases showing no anteroposterior error and no transverse errors.
- Performing Le Fort I osteotomy before sagittal split osteotomy allows for the correction of mandibular positioning errors.
Impact:
- The findings suggest a preferred surgical sequence in bimaxillary osteotomy for improved accuracy.
- This research aids surgeons in optimizing surgical planning for better patient results.

