A simplified sagittal split osteotomy of the mandibular ramus: A single-cut approach for orthognathic surgery
Year: 2025
Type: article
Abstract: BACKGROUND: This study aims to evaluate the feasibility, and reliability of a novel simplified sagittal osteotomy (SSO) technique for mandibular repositioning in orthognathic surgery. The research question focuses on whether this approach can reduce technical complexity and complication rates, especially in a residency training environment. MATERIAL AND METHODS: A prospective observational study was conducted involving 118 patients (62 females, 56 males) diagnosed with Angle Class II or III malocclusions and indicated for orthognathic surgery. All patients underwent a novel mandibular osteotomy as part of a Double-jaw surgery. Exclusion criteria included patients under 18 years of age, third molar presence, mandibular pathologies, and incomplete follow-up. The primary outcomes included feasibility, complication rates, and the need for conversion to the conventional BSSO. Statistical analysis was performed using the Chi-square test. RESULTS: A total of 236 osteotomies were performed. The technique was considered feasible in 98.7% of cases, with no conversions to traditional BSSO. No bad splits occurred. IAN injury was observed in 0.8% of cases, and long-term paresthesia (>1 year) occurred in 1.2%. No cases of hemorrhage or dental injury were reported. No significant associations were found between complications and patient gender or deformity type (p>0.05). CONCLUSIONS: The SSO technique demonstrated high feasibility and a low complication profile, supporting its use as a reliable alternative to BSSO.
Authors: SM. Costa, MS. Bahia, MY. Kadooka, PF. Trivellato, CE. Sverzut, AE. Trivellato
Institution: Universidade de São Paulo
Language: English
Subfield: Orthodontics
Field: Dentistry
Domain: Health Sciences
Open Access status: diamond
Funder: Universidade de São Paulo
OpenAlex ID: W4415349918
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