Endoscopic vertical ramus osteotomy: a long-term prospective study |
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| Affiliation: | 1. Department of Oral Pathology and Microbiology, Dr. D.Y. Patil Dental College and Hospital, Dr. D.Y. Patil Vidyapeeth, Sant-Tukaram Nagar, Pimpri, Pune 411018, MH, India;2. Department of Oral Medicine & Radiology, Government Dental College & Hospital, Nagpur, Maharashtra, India;3. Department of Dentistry, Indira Gandhi Government Medical College & Hospital, Nagpur, Maharashtra State, India;4. Department of Oral Pathology and Microbiology. Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai 600077, India;1. Oral Medicine & Radiology Centre for Dental Education Research All India Institute of Medical Sciences New Delhi India;2. Microbiology AIIMS N Delhi, India;3. Biochemistry All India Institute of Medical Sciences New Delhi India;4. Biostatistics All India Institute of Medical Sciences New Delhi India;1. Division of Oral and Maxillofacial Surgery, Dental School, Universidad San Martin de Porres, Peru;2. Division of Oral and Maxillofacial Surgery, Dental School, Universidad de La Frontera, Chile;3. Center for Biomedical Research, Universidad Autónoma de Chile, Chile;4. Division of Oral and Maxillofacial Surgery, Dental School, Federal University of Juiz de Fora, Brazil;5. Division of Oral and Maxillofacial Surgery, Piracicaba Dental School, State University of Campinas, Brazil |
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| Abstract: | The purpose of this prospective study was to evaluate the outcomes of endoscopic vertical ramus osteotomy (EVRO) with rigid fixation for the treatment of mandibular prognathism or asymmetry. Inclusion criteria were age >15 years, adequate clinical and radiographic documentation, and minimum postoperative follow-up of 3 years. Exclusion criteria were refusal to consent, rheumatoid arthritis, steroid use, and smoking. Demographic data, pre-operative (T0), immediate postoperative (T1), and latest follow-up (T2) clinical examinations and cephalometric analysis, procedure data, complications, and length of hospital stay (LOS) were documented. Ten fulfilled the inclusion criteria. Diagnoses included mandibular hyperplasia (n = 5), stable condylar hyperplasia (n = 4), and mandibular asymmetry secondary to condylar resorption (n = 1). In total, 17 EVROs were performed. The mean operative time was 33 min per side. Mean mandibular setback was 4.7 mm. Mean LOS was 1.9 days. Latest follow-up ranged from 3 to 5 years. Skeletal stability was confirmed in nine patients. One patient exhibited recurrence of mandibular prognathism at 5 years due to late growth. No VII nerve deficits were encountered. Inferior alveolar nerve (IAN) paresthesia was noted in four patients, which resolved postoperatively. EVRO was fast and resulted in minimal blood loss, quick recovery, and skeletal stability. |
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| Keywords: | endoscopic vertical ramus osteotomy mandibular prognathism rigid fixation |
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