Bruno Ramos Chrcanovic, Yves Stenio Lima Cavalcanti, Peter Reher
{"title":"Temporal miniplates in the frontozygomatic area--an anatomical study.","authors":"Bruno Ramos Chrcanovic, Yves Stenio Lima Cavalcanti, Peter Reher","doi":"10.1007/s10006-009-0173-5","DOIUrl":"https://doi.org/10.1007/s10006-009-0173-5","url":null,"abstract":"<p><strong>Purpose: </strong>The advantages of rigid fixation over wire osteosynthesis are well established for the management of facial trauma. Miniplates in the frontozygomatic area are traditionally applied to the lateral face of the orbital rim, but with some undesirable effects, such as palpability, visibility, and risk of penetration into the anterior cranial fossa. The aim of this study was to perform an anatomical study to validate the use of miniplates on the temporal face of the frontozygomatic region.</p><p><strong>Methods: </strong>Osseous thickness measurements were performed in 30 skulls, on four points above and four below the suture, at 3-mm intervals, perpendicular to the bone surface.</p><p><strong>Results: </strong>There is enough bone thickness to apply the screws, ranging between 4 and 6.5 mm. The first hole over the frontozygomatic suture should receive the smallest screws and the other areas can receive screws up to 6 mm. All drillings are made from the temporal fossa to the orbit, and its contents should therefore be protected during the perforations. At the measured points there is no risk of anterior cranial fossa penetration.</p><p><strong>Conclusion: </strong>This study suggests that it is possible to use miniplates at the temporal aspect of the frontozygomatic suture.</p>","PeriodicalId":520733,"journal":{"name":"Oral and maxillofacial surgery","volume":" ","pages":"201-6"},"PeriodicalIF":1.8,"publicationDate":"2009-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1007/s10006-009-0173-5","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"40051923","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Bruno Ramos Chrcanovic, Antônio Luís Neto Custódio
{"title":"Inferior alveolar nerve lateral transposition.","authors":"Bruno Ramos Chrcanovic, Antônio Luís Neto Custódio","doi":"10.1007/s10006-009-0175-3","DOIUrl":"https://doi.org/10.1007/s10006-009-0175-3","url":null,"abstract":"<p><strong>Purpose: </strong>We determined the outcomes of 18 inferior alveolar nerve lateral transposition procedures in 15 consecutive patients. The advantages and disadvantages of this technique are discussed.</p><p><strong>Results: </strong>The surgical protocol for inferior alveolar nerve transposition, followed by implant placement, presented excellent results, with complete recovery of the sensitivity within 6 months after the surgical procedure.</p><p><strong>Discussion: </strong>Inferior alveolar nerve transposition is an option for prosthetic rehabilitation in cases of moderate or even severe bone reabsorption for patients that do not tolerate removable dentures.</p><p><strong>Conclusions: </strong>It is concluded that inferior alveolar nerve transposition can be safely and predictably performed with low risk to the mental nerve sensibility. Each patient should be advised of the chance of permanent nerve deficit throughout the distribution of the mental nerve. Alternative restorative solutions should also be considered.</p>","PeriodicalId":520733,"journal":{"name":"Oral and maxillofacial surgery","volume":" ","pages":"213-9"},"PeriodicalIF":1.8,"publicationDate":"2009-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1007/s10006-009-0175-3","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"40055414","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Bruno Ramos Chrcanovic, Antônio Luís Neto Custódio
{"title":"Mandibular fractures associated with endosteal implants.","authors":"Bruno Ramos Chrcanovic, Antônio Luís Neto Custódio","doi":"10.1007/s10006-009-0171-7","DOIUrl":"https://doi.org/10.1007/s10006-009-0171-7","url":null,"abstract":"<p><strong>Purpose: </strong>The purpose of this study is to report four cases of mandibular fractures associated with endosteal implants and to discuss prevention and treatment of these types of fractures.</p><p><strong>Discussion: </strong>To evaluate whether the patient's anatomy allows insertion of implants, radiological exams that demonstrate the height and the labial-lingual width are needed. To reduce the potential fracture problem, the mandible can be restrengthened with bone grafting techniques. The treatment of a fracture in an atrophic mandible is always a challenge because of the diminished central blood supply, the depressed vitality of the bone, and the dependence on the periosteal blood supply. The basic principles in fracture treatment are reduction and immobilization of the fractured site for restoration of form and function.</p><p><strong>Conclusions: </strong>If implants are placed in severe atrophic mandible, iatrogenic fracture of the mandible may occur during or after implant surgery because implant placement weakens the already-compromised mandible. A few millimeters of cortical bone should remain on both the labial and the lingual sites after the hole for insertion of an implant has been drilled. A 3-D surgical planning should be recommended at least in severe atrophic mandibles in order to prevent a severe reduction of bone tissue.</p>","PeriodicalId":520733,"journal":{"name":"Oral and maxillofacial surgery","volume":" ","pages":"231-8"},"PeriodicalIF":1.8,"publicationDate":"2009-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1007/s10006-009-0171-7","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"40043609","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Alexander Gröbe, Christoph Weber, Rainer Schmelzle, Max Heiland, Jan Klatt, Philipp Pohlenz
{"title":"The use of navigation (BrainLAB Vector vision(2)) and intraoperative 3D imaging system (Siemens Arcadis Orbic 3D) in the treatment of gunshot wounds of the maxillofacial region.","authors":"Alexander Gröbe, Christoph Weber, Rainer Schmelzle, Max Heiland, Jan Klatt, Philipp Pohlenz","doi":"10.1007/s10006-009-0166-4","DOIUrl":"https://doi.org/10.1007/s10006-009-0166-4","url":null,"abstract":"<p><strong>Purpose: </strong>Gunshot wounds are a rare occurrence during times of peace. The removal of projectiles is recommended; in some cases, however, this is a controversy. The reproduction of a projectile image can be difficult if it is not adjacent to an anatomical landmark. Therefore, navigation systems give the surgeon continuous real-time orientation intraoperatively. The aim of this study was to report our experiences for image-guided removal of projectiles and the resulting intra- and postoperative complications.</p><p><strong>Patients and methods: </strong>We investigated 50 patients retrospectively; 32 had image-guided surgical removal of projectiles in the oral and maxillofacial region. Eighteen had surgical removal of projectiles without navigation assistance.</p><p><strong>Results: </strong>There was a significant correlation (p = 0.0136) between the navigated surgery vs. not-navigated surgery and complication rate, including major bleeding (n = 4 vs. n = 1, 8% vs. 2%), soft tissue infections (n = 7 vs. n = 2, 14% vs. 4%), and nerval damage (n = 2 vs. n = 0, 4% vs. 0%; p = 0.038) and between the operating time and postoperative complications. A high tendency between operating time and navigated surgery (p = 0.1103) was shown. When using navigation system, we could reduce operating time.</p><p><strong>Conclusion: </strong>In conclusion, there is a significant correlation between reduced intra- and postoperative complications, including wound infections, nerval damage, and major bleeding, and the appropriate use of a navigation system. In all these cases, we could present reduced operating time. Cone-beam computed tomography plays an important role in detecting projectiles or metallic foreign bodies intraoperatively.</p>","PeriodicalId":520733,"journal":{"name":"Oral and maxillofacial surgery","volume":" ","pages":"153-8"},"PeriodicalIF":1.8,"publicationDate":"2009-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1007/s10006-009-0166-4","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"40023236","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Ayotunde J Fasunla, Titus S Ibekwe, Olushola A Afolabi, Paul A Onakoya, Olayiwola A Oluwasola, Olabiyi G Ogun, Adewunmi O Adeoye, Onyekwere G Nwaorgu
{"title":"Sinonasal paraganglioma: a case report.","authors":"Ayotunde J Fasunla, Titus S Ibekwe, Olushola A Afolabi, Paul A Onakoya, Olayiwola A Oluwasola, Olabiyi G Ogun, Adewunmi O Adeoye, Onyekwere G Nwaorgu","doi":"10.1007/s10006-008-0104-x","DOIUrl":"https://doi.org/10.1007/s10006-008-0104-x","url":null,"abstract":"<p><strong>Objective: </strong>To highlight the importance of a high index of suspicion and meticulous evaluation of a patient with bleeding sinonasal mass in the diagnosis of sinonasal paraganglioma.</p><p><strong>Method: </strong>Case report of a 39-year-old female who presented with a bleeding lobulated left nasal mass necessitating multiple blood transfusions is presented.</p><p><strong>Result: </strong>Diagnostic investigations revealed that the patient was HIV-positive (ELISA and Western blot) and a tumour histology of paraganglioma. She had a CD4+ count of 487 cells/mm3. The urinary vanillylmandelic acid assay and echocardiography were normal. Subsequently, she had complete tumour excision through a medial maxillectomy and has remained without a recurrence 12 months after.</p><p><strong>Conclusion: </strong>To our knowledge, this is the first report in the world literature of sinonasal paraganglioma in a HIV-positive patient and the first reported case of sinonasal paraganglioma in Africa. It is, however, not clear from this report if the patient's HIV status preceded her development of the paraganglioma or not.</p>","PeriodicalId":520733,"journal":{"name":"Oral and maxillofacial surgery","volume":" ","pages":"93-6"},"PeriodicalIF":1.8,"publicationDate":"2008-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1007/s10006-008-0104-x","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"40514177","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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