Resumo

SANTOS, Rafael et al. Complications associated with sagittal split osteotomy of the mandibular rami. Rev. cir. traumatol. buco-maxilo-fac. [online]. 2012, vol.12, n.1, pp. 77-84. ISSN 1808-5210.

Introduction: Bilateral sagittal split osteotomy of the mandibular ramus is one of the most common procedures used in orthognathic surgery for the correction of mandibular deformities. Objective: To assess the prevalence of intraoperative and postoperative complications in patients undergoing a sagittal split osteotomy of the mandibular rami. Material and Methods: A retrospective analysis was made of the medical records of patients undergoing orthognathic surgery for the advancement, retreat or correction of mandibularlaterognatism in the Oral and Maxillofacial Surgery Unit of the Federal University of Parana over a period of six years. Data (gender, age and dentofacial deformity presented) were collected and correlated with the complications by means of statistical analysis (Fischer, Mann Whitney and Kruskal Wallis tests). Results: Females were predominant (69.6%). The median age was 23 years (14-65). There were no statistical associations between gender and complications (p=0.269) or between age and complications (p=0.071). Of a total of 46 patients, 11 (23.9%) had at least one complication. The most prevalent intraoperative complications were visible damage to the inferior alveolar nerve (n= 6/13%) and inadequate fractures of the bone segments (n=6/13%). Inferior alveolar nerve paresthesia was the most frequent postoperative complication (n=6/13%). There were no statistical associations between complications and the dentofacial deformity presented by the patients (p=0.389). Conclusion: 23.9% of the patients suffered some type of complication. There were no statistical associations between complications and the variables analyzed.

Palavras-chave : Osteotomy; Mandible; Oral Surgery; Intraoperative Complications; Postoperative Complications.