Skeletal stability following bilateral sagittal split osteotomy (BSSO) with and without condylar positioning device
Marcus Gerressen1, Gereon Stockbrink, Ralf Smeets
1Department of Oral, Maxillofacial and Plastic Facial Surgery, Universitätsklinikum der RWTH Aachen, Aachen, Germany. Marcus.Geressen@post.rwthaachen.de
Summary
Condylar positioning devices do not improve skeletal stability after bilateral sagittal split osteotomy (BSSO). Manual positioning techniques achieve equally stable results in both mandibular advancement and setback surgeries.
Area of Science:
- Oral and Maxillofacial Surgery
- Orthognathic Surgery
- Skeletal Stability
Background:
- Bilateral sagittal split osteotomy (BSSO) is a common orthognathic procedure.
- Maintaining skeletal stability post-BSSO is crucial for long-term outcomes.
- Condylar positioning techniques aim to optimize joint stability during surgery.
Purpose of the Study:
- To compare the skeletal stability after BSSO using condylar positioning devices versus manual positioning.
- To evaluate the influence of intraoperative condylar positioning on postoperative skeletal changes.
Main Methods:
- Retrospective cephalometric analysis of 49 patients undergoing BSSO or bimaxillary surgery.
- Measurement of postoperative changes in SNB angle and Wits appraisal.
- Comparison between patients who had their condyles positioned using the Luhr device and those positioned manually.
Main Results:
- No significant difference in skeletal stability (SNB angle, Wits appraisal) was observed between the positioning device and manual technique groups.
- Confidence intervals suggested equivalence of outcomes for both methods.
- Skeletal stability was comparable in both advancement and setback BSSO cases.
Conclusions:
- The use of condylar positioning devices does not enhance skeletal stability following BSSO.
- Manual condylar positioning can achieve results as stable as device-assisted positioning.
- Equally stable outcomes are attainable with manual techniques in both advancement and setback surgeries.
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