Analysis of 40 Cases of Intraoral Verticosagittal Ramus Osteotomies to Treat Dentofacial Deformities

Lima Júnior, Sergio Monteiro; Granato, Rodrigo; Marin, Charles; de Souza Maliska, Maximiana Cristina; Gil, José Nazareno

doi:10.1016/j.joms.2009.04.028

« Previous Next »Journal of Oral and Maxillofacial Surgery
Volume 67, Issue 9 , Pages 1840-1843, September 2009

Analysis of 40 Cases of Intraoral Verticosagittal Ramus Osteotomies to Treat Dentofacial Deformities

Sergio Monteiro Lima Júnior, DDS
- Oral and Maxillofacial Surgeon, Department of Oral and Maxillofacial Surgery, Federal University of Santa Catarina, Florianópolis, Santa Catarina, Brazil
Rodrigo Granato, DDS, MS
- Oral and Maxillofacial Surgeon, Department of Oral and Maxillofacial Surgery, Federal University of Santa Catarina, Florianópolis, Santa Catarina, Brazil
Charles Marin, DDS, MS
- Oral and Maxillofacial Surgeon, Department of Oral and Maxillofacial Surgery, Federal University of Santa Catarina, Florianópolis, Santa Catarina, Brazil
Maximiana Cristina de Souza Maliska, DDS
- Clinician, Department of Oral and Maxillofacial Surgery, Federal University of Santa Catarina, Florianópolis, Santa Catarina, Brazil
José Nazareno Gil, DDS, MS, PhD
- Professor and Residence Program Director, Department of Oral and Maxillofacial Surgery, Federal University of Santa Catarina, Florianópolis, Santa Catarina, Brazil
- Address correspondence and reprint requests to Dr Nazareno Gil: Department of Oral and Maxillofacial Surgery, Federal University of Santa Catarina, Rua Tenente Silveira, 293, sala 1001, ed. Reflex, Centro., Florianópolis, SC, Brazil

Purpose

The aim of the present study was to report the experience of 40 patients who had undergone intraoral verticosagittal ramus osteotomy (IVSRO) to treat dentofacial deformities.

Patients and Methods

The charts of 40 consecutive patients who had undergone IVSRO were analyzed regarding the diagnosis, amount of mandibular movement, and complications.

Results

Eighty IVSROs were performed in 40 patients. The mean follow-up was 18 months. Mandibular protrusion in both genders was the main preoperative diagnosis (25 patients), and the treatment was 2-jaw surgery in 36 patients. The mean amount of movement was 2 mm for the mandible setback and advancement, 3 mm for mandible counterclockwise rotations, and 2 mm for mandible clockwise rotations. The mean period of maxillomandibular fixation was 15 days, followed by a period of heavy elastics. The rate of complications was 2%, including 2 bad splits, and 2 cases of intraoperative bleeding. No nerve injury was observed in the 40 patients studied.

Conclusions

The IVSRO is efficient and versatile, with low morbidity, and is an option for the oral and maxillofacial surgeon to treat patients with mandibular dentoskeletal discrepancies.