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Conference Paper: Endoscopic assisted rigid fixation in intra-oral vertical subsigmoid osteotomy: a preliminary study
Title | Endoscopic assisted rigid fixation in intra-oral vertical subsigmoid osteotomy: a preliminary study |
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Authors | |
Issue Date | 2006 |
Citation | The 18th Congress of the European Association for Cranio-Maxillofacial Surgery, Barcelona, Spain, 12-15 September 2006. In Journal of Cranio-Maxillofacial Surgery, 2006, v. 34 suppl. 1, p.77, abstract no. O.276 How to Cite? |
Abstract | INTRODUCTION: Intra-oral vertical subsigmoid osteotomy (IVSO) is a mandibular ramus osteotomy technique used to correct mandibular prognathism. It is an easily learned surgical procedure executed transorally, and results in fewer neurosensory disturbances than sagittal split osteotomy. However, the intra-oral route limits visibility and makes access to the application of rigid fixation difficult. Post-operative intermaxillary fixation (IMF) for several weeks is mandatory to ensure stability for bone healing. OBJECTIVES: (1) To illustrate the clinical technique of endoscope-assisted rigid fixation in intra-oral vertical sub-sigmoid osteotomy (VSO); and (2) to report on early post-operative morbidities. MATERIAL AND METHODS: Six patients presenting with Class 3 skeletal profile were recruited. The osteotomy was performed through an intra-oral route. Rigid fixation was achieved with a 3mm stab incision located inferior to the ear pinna allowing access to the transbuccal trocar. A rigid endoscope was introduced intra-orally to improve visibility during fixation. Patients’ preoperative and 3-month post-operative radiographs and clinical morbidities (neurosensory status & temporomandibular joint (TMJ) function) were assessed. RESULTS: 83.3% of patients fully recovered inferior alveolar nerve function, and 66.6% recovered TMJ function. The scar from the stab incision was effectively camouflaged by the ear pinna, and was not noticeable by the patients. CONCLUSION: This preliminary study confirms that the application of endoscope-assisted rigid fixation in intra-oral VSO is clinically feasible. All the patients presented with minimal clinical morbidities and good stability at the early post-operative period. |
Description | This journal suppl. entitled: Abstracts from the XVIIIth Congress of the European Association for Cranio-Maxillofacial Surgery, Barcelona, Spain, 12–15 September 2006 |
Persistent Identifier | http://hdl.handle.net/10722/94874 |
DC Field | Value | Language |
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dc.contributor.author | Lo, J | en_HK |
dc.contributor.author | Cheung, LK | en_HK |
dc.date.accessioned | 2010-09-25T15:44:33Z | - |
dc.date.available | 2010-09-25T15:44:33Z | - |
dc.date.issued | 2006 | en_HK |
dc.identifier.citation | The 18th Congress of the European Association for Cranio-Maxillofacial Surgery, Barcelona, Spain, 12-15 September 2006. In Journal of Cranio-Maxillofacial Surgery, 2006, v. 34 suppl. 1, p.77, abstract no. O.276 | en_HK |
dc.identifier.uri | http://hdl.handle.net/10722/94874 | - |
dc.description | This journal suppl. entitled: Abstracts from the XVIIIth Congress of the European Association for Cranio-Maxillofacial Surgery, Barcelona, Spain, 12–15 September 2006 | - |
dc.description.abstract | INTRODUCTION: Intra-oral vertical subsigmoid osteotomy (IVSO) is a mandibular ramus osteotomy technique used to correct mandibular prognathism. It is an easily learned surgical procedure executed transorally, and results in fewer neurosensory disturbances than sagittal split osteotomy. However, the intra-oral route limits visibility and makes access to the application of rigid fixation difficult. Post-operative intermaxillary fixation (IMF) for several weeks is mandatory to ensure stability for bone healing. OBJECTIVES: (1) To illustrate the clinical technique of endoscope-assisted rigid fixation in intra-oral vertical sub-sigmoid osteotomy (VSO); and (2) to report on early post-operative morbidities. MATERIAL AND METHODS: Six patients presenting with Class 3 skeletal profile were recruited. The osteotomy was performed through an intra-oral route. Rigid fixation was achieved with a 3mm stab incision located inferior to the ear pinna allowing access to the transbuccal trocar. A rigid endoscope was introduced intra-orally to improve visibility during fixation. Patients’ preoperative and 3-month post-operative radiographs and clinical morbidities (neurosensory status & temporomandibular joint (TMJ) function) were assessed. RESULTS: 83.3% of patients fully recovered inferior alveolar nerve function, and 66.6% recovered TMJ function. The scar from the stab incision was effectively camouflaged by the ear pinna, and was not noticeable by the patients. CONCLUSION: This preliminary study confirms that the application of endoscope-assisted rigid fixation in intra-oral VSO is clinically feasible. All the patients presented with minimal clinical morbidities and good stability at the early post-operative period. | - |
dc.language | eng | en_HK |
dc.relation.ispartof | Journal of Cranio-Maxillofacial Surgery | en_HK |
dc.title | Endoscopic assisted rigid fixation in intra-oral vertical subsigmoid osteotomy: a preliminary study | en_HK |
dc.type | Conference_Paper | en_HK |
dc.identifier.email | Lo, J: drjohnlo@hku.hk | en_HK |
dc.identifier.email | Cheung, LK: lkcheung@hkucc.hku.hk | en_HK |
dc.identifier.authority | Cheung, LK=rp00013 | en_HK |
dc.description.nature | link_to_subscribed_fulltext | - |
dc.identifier.doi | 10.1016/S1010-5182(06)60303-X | - |
dc.identifier.hkuros | 122872 | en_HK |
dc.identifier.hkuros | 138125 | - |
dc.identifier.volume | 34 | en_HK |
dc.identifier.issue | suppl. 1 | - |
dc.identifier.spage | 77, abstract no. O.276 | en_HK |
dc.identifier.epage | 77, abstract no. O.276 | - |