Penetration of inferior alveolar nerve canal increased by bicortical fixation after bilateral sagittal split osteotomy in mandibular prognathism |
| |
| Affiliation: | 1. Craniofacial Research Center, Chang Gung Memorial Hospital, Taoyuan, Taiwan;2. Department of Craniofacial Orthodontics, Chang Gung Memorial Hospital, Taipei, Taiwan;3. Department of Maxillofacial Surgery and Odonto-stomatology, National Children’s Hospital, Hanoi, Viet Nam;4. Department of Orthodontics, Ho Chi Minh City Dental Hospital, Ho Chi Minh City, Viet Nam;5. Graduate Institute of Dental and Craniofacial Science, College of Medicine, Chang Gung University, Taoyuan, Taiwan;6. Department of Plastic and Reconstructive Surgery, Chang Gung Memorial Hospital, Linkou, Taiwan;1. Department of Oral & Maxillofacial Surgery, S.C.B. Dental College & Hospital, Cuttack Odisha, India;2. Department of Preventive & Social Medicine, S.C.B. Medical College & Hospital, Cuttack Odisha, India;1. Department of Diagnostic Radiology, Mansoura Faculty of Medicine, Mansoura, Egypt;2. Surgical Oncology, Mansoura Oncology Centre, Mansoura Faculty of Medicine, Mansoura, Egypt;3. Department of Diagnosis and Oral Radiology, Mansoura Faculty of Dentistry, Mansoura, Egypt;1. Department of Oral and Maxillofacial Surgery, Medical University of Graz, Graz, Austria;2. Department of Plastic and Reconstructive Surgery, Guy’s and St Thomas’ Hospital, London, UK;3. Division of Angiology, Medical University of Graz, Graz, Austria;1. Department of Oral and Maxillofacial Surgery, Universitätsklinikum Knappschaftskrankenhaus Bochum, Bochum, Germany;2. Department of Diagnostic and Interventional Radiology and Nuclear Medicine, Universitätsklinikum Knappschaftskrankenhaus Bochum, Bochum, Germany;1. Department of Oral and Maxillofacial Surgery, Second Xiangya Hospital of Central South University, Changsha, Hunan, China;2. Department of Oral and Maxillofacial Surgery, Hainan Western Central Hospital, Danzhou, Hainan, China;3. Department of Oral and Maxillofacial & Head and Neck Oncology, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China;4. Department of Oral and Maxillofacial Surgery, Affiliated Hospital of Guilin Medical University, Guilin, Guangxi Zhuang Autonomous Region, China |
| |
| Abstract: | The purpose of this three-dimensional cone beam computed tomography (CBCT) study was to identify the difference between monocortical fixation (MCF) and bicortical fixation (BCF) in mandibular canal penetration after bilateral sagittal split osteotomy (BSSO) to correct mandibular prognathism, where interosseous fixation was done by BCF or MCF. CBCT was performed 1 week postoperatively and Dolphin 3D software was used to assess direct penetration of the mandibular canal by either type of screw. The primary outcome variable was the presence or absence of mandibular canal penetration and was categorized as a binary coded variable. The BCF and MCF groups were compared by χ2 test, and the odds ratio for canal penetration was estimated. Multiple logistic regression was performed to identify factors related to canal penetration. A total of 118 patients were included. The MCF group had only 6% canal penetrations (3/50 patients) and the BCF group had 58.8% canal penetrations (40/68 patients). The regression model showed that BCF was the only factor causing mandibular canal penetration, with an adjusted odds ratio of 52.5. Awareness of the increased risk of canal penetration with BCF and potential nerve injury might influence case selection. |
| |
| Keywords: | jaw fixation techniques mandibular nerve injuries sagittal split ramus osteotomy prognathism Angle class III |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
