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Computer Guided Generated Dual-Purpose Splint for Bilateral Sagittal Split Osteotomy
Mamdouh Ahmed1, Sherif Ali1, Sara Soliman2
1Oral and Maxillofacial Surgery, Cairo University, Cairo, Egypt.
Journal of Maxillofacial and Oral Surgery
|January 27, 2023
Summary
A novel dual-purpose splint effectively guides both segments during bilateral sagittal split osteotomy. This computer-generated device ensures accurate condylar positioning, improving surgical outcomes for orthognathic surgery patients.
Area of Science:
- Oral and Maxillofacial Surgery
- Computer-Aided Design/Computer-Aided Manufacturing (CAD/CAM) in Orthognathic Surgery
Background:
- Bilateral sagittal split osteotomy (BSSO) is a common procedure for correcting jaw discrepancies.
- Precise positioning of bone segments is crucial for successful BSSO outcomes.
- Existing methods may face challenges in simultaneously guiding proximal and distal segments.
Purpose of the Study:
- To evaluate the efficacy of a dual-purpose computer-generated splint.
- To assess the splint's ability to guide both proximal and distal segments in BSSO.
- To determine if the splint maintains planned condylar position during fixation.
Main Methods:
- Prospective case series study involving 8 patients with Class III malocclusion requiring BSSO.
- A custom CAD/CAM splint was designed to guide the distal segment and engage the proximal segment.
- Primary outcome measured by comparing pre- and post-operative condylar segment positions.
Main Results:
- The study included 5 female and 3 male patients with a mean age of 28.4 ± 5.1 years.
- The splint demonstrated promising accuracy in positioning the mandibular proximal segment, with results ranging from 2.59 to 0.49 mm.
- Satisfied results were achieved in maintaining pre-operative condylar position.
Conclusions:
- The dual-purpose computer-generated splint is effective in guiding both segments during BSSO.
- The splint facilitates accurate positioning of the condylar segment, ensuring stability.
- This technology offers a reliable method for improving surgical precision in orthognathic procedures.
