sagittal split osteotomy
Also written as: BSSO — bilateral sagittal split osteotomy
Surgical technique for repositioning the mandible by splitting it along the sagittal plane.
Full Definition
Sagittal split osteotomy is a widely used orthognathic surgical procedure that involves splitting the mandibular ramus in the sagittal plane to allow repositioning of the mandible for correction of jaw discrepancies. The technique involves creating osteotomy lines along the medial aspect of the ramus and through the mandibular body, allowing the tooth-bearing segment to be advanced, set back, or rotated as needed. The procedure provides excellent versatility for correcting mandibular prognathism, retrognathism, and asymmetries. Rigid fixation with plates and screws provides stable healing, though complications may include nerve injury, bad splits, and relapse.
Usage
Usage note: BSSO is the standard abbreviation for bilateral procedures; specify unilateral when applicable.
In Context
- "Bilateral sagittal split osteotomy was performed to advance the mandible by 8 millimeters." — Operative procedure description
- "The sagittal split osteotomy achieved excellent occlusion with stable rigid fixation using titanium plates." — Post-operative assessment