Comparative study between lag screw and miniplate fixation for straight midline mandibular osteotomy |
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| Affiliation: | 1. Department of Maxillofacial Surgery, University Hospital Dubrava, Zagreb, Croatia;2. Medical School, University of Zagreb, Zagreb, Croatia;3. Dental School, University of Zagreb, Zagreb, Croatia;1. Department of Oral and Maxillofacial Surgery, School of Dentistry, University of North Carolina, Chapel Hill, NC, USA;2. Department of Orthodontics, School of Dentistry, University of North Carolina, Chapel Hill, NC, USA;1. Department of Orthopaedic Surgery, Osaka City University Graduate School of Medicine, 1-4-3 Asahimachi Abeno-ku, Osaka 545-8585, Japan;2. Department of Orthopaedic Surgery, Osaka City General Hospital, 2-13-22 Miyakojimahondori, Miyakojima-ku, Osaka 534-0021, Japan;3. Department of Orthopaedic Surgery, Yodogawa Christian Hospital, 1-7-50 Kunijima, Higashiyodogawa-Ku, Osaka 533-0024, Japan;4. Gakuen-minami Clinic, 2-27 Gakuenyamatocho, Nara 631-0041, Japan;1. Department of Maxillofacial Surgery and Stomatology, University Hospital Amiens, France;2. Department of Prenatal Diagnosis, Gynaecology and Obstetrics, University Hospital Amiens, France;3. Department of Medical Genetics, Rare Disease Centre, University Hospital Amiens, France;4. Department of Anatomopathology, University Hospital Amiens, France;1. School of Stomatology, China Medical University, Shenyang, People''s Republic of China;2. Department of Oral and Maxillofacial Surgery, Tianjin Stomatological Hospital, Tianjin, People''s Republic of China;3. Department of Head and Neck Surgery, Tianjin Medical University Cancer Institute and Hospital, Tianjin, People''s Republic of China;1. Department of Oral and Maxillofacial Surgery, Kobe University Graduate School of Medicine, Kobe, Japan;2. Division of Diagnostic Pathology, Kobe University Graduate School of Medicine, Kobe, Japan |
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| Abstract: | The mandibular swing approach is a surgical approach for the resection of malignant lesions localized in the posterior oral cavity and oropharynx. We analyzed 15 years of experience with fixation of the straight midline mandibulotomy and compared two fixation methods: lag screws and miniplates. A total of 117 patients underwent a straight midline mandibulotomy during the study period; 85 had fixation with two lag screws and 32 with two miniplates. The overall complication rate was low and there was no significant difference in complication rate regarding the fixation method (9% for miniplates vs. 7% for lag screws). The most serious complication over the whole study period was non union, which occurred in only two patients, followed by orocutaneous fistula and infection. Radiotherapy did not cause serious complications and is not regarded as hazardous in midline mandibulotomy patients. We conclude that lag screw fixation is at least as safe as miniplate fixation, but because of better fragment compression, offers faster bone healing. |
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| Keywords: | lag screw mandibulotomy miniplate mandible fixation mandible osteosynthesis |
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