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Sectioned images and surface models of a cadaver for understanding the dorsalis pedis flap
Oral Presentation
References Pruzansky, S. (1969). Not all dwarfed mandible are alike. Birth Defects Orig Artic Ser, 5, 120–129. McCarthy, J. G., Schreiber, J., Karp, N., et al. (1992). Lenghthening of the human mandible by gradual distraction. Plast Reconstr Surg, 89, 1–10. McCarthy, J. G., Katzen, J. K., Hopper, R., et al. (2002). The first decade of mandibular distraction: lessons we have learned. Plast Reconstr Surg, 110, 1704–1713.
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surface models. The PDF (portable document format) file (size, 30 MB) of the constructed models is available for free download on the Website of the Department of Anatomy at Ajou University School of Medicine (http://anatomy.co.kr). In the PDF file, the relevant structures of the DCIA flap can be seen in the sectioned images. All surface models and stereoscopic structures associated with the DCIA flap are displayed in real time. We hope that these state-of-the-art sectioned images, outlined images, and surface models will help students and trainees better understand the anatomy associated with DCIA flap.
http://dx.doi.org/10.1016/j.ijom.2015.08.633 http://dx.doi.org/10.1016/j.ijom.2015.08.635 Correlation between mandibular canal position and IAN encounter during mandibular SSRO using 3D CT analysis ∗
H. Kim , T. Park, J. Lee, J. Jeon Department of Oral and Maxillofacial Surgery, Seoul Asan Medical Center, Seoul, Republic of Korea Background: Bilateral sagittal split ramus osteotomy (BSSRO) is the method most frequently used in correcting a prognathic or retrognathic mandible. Neurosensory disturbance of the lower lip and chin induced by damage to the inferior alveolar nerve (IAN) is common complication after SSRO. During operation, IAN encounter is one of main factors causing neurosensory disturbance of mandible. Three-dimensional computerized tomography is the most accurate method to visualize the location of the mandibular canal. Objectives: The purpose of this study is to summarize relation between mandibular canal position and IAN encounter during BSSRO and to figure out the possible contributing factors affecting neurosensory disturbance. Methods: A total 98 patients (aged 16–39 years, mean 22.5 years) were included in this study who recently visited Department of Oral and Maxillofacial Surgery of Seoul Asan Medical Center and underwent BSSRO for mandibular correction. Cone beam CT was taken in all patients. For evaluating the neurosensory function of lower lip and chin, questionnaire and a light touch method were used. Findings and conclusions: The nerve exposure has positive correlation with neurosensory disturbance and the risk of nerve damage decreased as the distance from the inferior alveolar nerve and buccal cortex at second molar decreased. Nerve was more exposed according to increase of the thickness of buccal cortex at second molar and decrease of the distance from inferior alveolar nerve to inferior mandibular border at third molar. http://dx.doi.org/10.1016/j.ijom.2015.08.634 Sectioned images and surface models of a cadaver for understanding the deep circumflex iliac artery flap H.J. Kim 1,∗ , B.C. Kim 2 1
Yonsei University School of Dentistry, Seoul, Republic of Korea Wonkwang University College of Dentistry, Daejeon, Republic of Korea
2
The aim of this study was to describe the deep circumflex iliac artery (DCIA) flap from sectioned images and stereoscopic anatomic models using Visible Korean, for the benefit of medical education and clinical training in the field of oromandibular reconstructive surgery. Serially sectioned images of the pelvic area were obtained from a cadaver. Outlines of significant structures in the sectioned images were drawn and stacked to build
Sectioned images and surface models of a cadaver for understanding the dorsalis pedis flap H.J. Kim 1,∗ , B.C. Kim 2 1
Yonsei University School of Dentistry, Seoul, Republic of Korea Wonkwang University College of Dentistry, Daejeon, Republic of Korea
2
The aim of this study is to represent the dorsalis pedis (DP) flap on sectioned images and surface models using Visible Korean for medical education and clinical training in the field of maxillofacial reconstructive surgery. Serially sectioned images of the foot were obtained from a cadaver. The important structures in the sectioned images were outlined and stacked to create a surface model. The PDF file (53 MB) of the assembled models is accessible for free download on the Department of Anatomy at Ajou University School of Medicine website (http://anatomy.co.kr). In this file, the significant anatomic structures of the DP flap can be inspected in the sectioned images. All surface models and stereoscopic structures of the DP flap are described in real-time. We hope that these state of-the-art sectioned images, outlined images, and surface models will help students and trainees gain a better understanding of the DP flap anatomy. http://dx.doi.org/10.1016/j.ijom.2015.08.636 Stage IV oral malignant melanoma: a case report and literature review J. Kirimi 1,∗ , S. Guthua 1 , E. Dimba 1,2 , B. Omondi 2 , D. Kota 2 1
Department of Oral Maxillofacial Surgery, Oral Medicine & Oral Pathology, University of Nairobi, Nairobi, Kenya 2 Department of Conservative & Prothodontic Dentistry, University of Nairobi, Nairobi, Kenya Oral melanoma is a very rare aggressive malignancy with unknown aetiology. It is a malignant neoplasm of melanocytes. It accounts for 0.2–8.0% of all reported melanomas. It occurs commonly between the ages of 41 and 60 years. The common sites of its intra-oral occurrence are the palate and gingiva with the maxilla being affected in 80% of the cases. Gender distribution has been reported as female to male of 1:1. Because of its presence at relatively obscure areas in the oral cavity, most oral malignant melanomas are diagnosed at a late stage. These lesions are associated with poor prognosis. In this paper, we present a rare case of malignant melanoma in the maxilla with poor outcome in a 59-year-old Kenyan male. http://dx.doi.org/10.1016/j.ijom.2015.08.637
References Pruzansky, S. (1969). Not all dwarfed mandible are alike. Birth Defects Orig Artic Ser, 5, 120–129. McCarthy, J. G., Schreiber, J., Karp, N., et al. (1992). Lenghthening of the human mandible by gradual distraction. Plast Reconstr Surg, 89, 1–10. McCarthy, J. G., Katzen, J. K., Hopper, R., et al. (2002). The first decade of mandibular distraction: lessons we have learned. Plast Reconstr Surg, 110, 1704–1713.
e91
surface models. The PDF (portable document format) file (size, 30 MB) of the constructed models is available for free download on the Website of the Department of Anatomy at Ajou University School of Medicine (http://anatomy.co.kr). In the PDF file, the relevant structures of the DCIA flap can be seen in the sectioned images. All surface models and stereoscopic structures associated with the DCIA flap are displayed in real time. We hope that these state-of-the-art sectioned images, outlined images, and surface models will help students and trainees better understand the anatomy associated with DCIA flap.
http://dx.doi.org/10.1016/j.ijom.2015.08.633 http://dx.doi.org/10.1016/j.ijom.2015.08.635 Correlation between mandibular canal position and IAN encounter during mandibular SSRO using 3D CT analysis ∗
H. Kim , T. Park, J. Lee, J. Jeon Department of Oral and Maxillofacial Surgery, Seoul Asan Medical Center, Seoul, Republic of Korea Background: Bilateral sagittal split ramus osteotomy (BSSRO) is the method most frequently used in correcting a prognathic or retrognathic mandible. Neurosensory disturbance of the lower lip and chin induced by damage to the inferior alveolar nerve (IAN) is common complication after SSRO. During operation, IAN encounter is one of main factors causing neurosensory disturbance of mandible. Three-dimensional computerized tomography is the most accurate method to visualize the location of the mandibular canal. Objectives: The purpose of this study is to summarize relation between mandibular canal position and IAN encounter during BSSRO and to figure out the possible contributing factors affecting neurosensory disturbance. Methods: A total 98 patients (aged 16–39 years, mean 22.5 years) were included in this study who recently visited Department of Oral and Maxillofacial Surgery of Seoul Asan Medical Center and underwent BSSRO for mandibular correction. Cone beam CT was taken in all patients. For evaluating the neurosensory function of lower lip and chin, questionnaire and a light touch method were used. Findings and conclusions: The nerve exposure has positive correlation with neurosensory disturbance and the risk of nerve damage decreased as the distance from the inferior alveolar nerve and buccal cortex at second molar decreased. Nerve was more exposed according to increase of the thickness of buccal cortex at second molar and decrease of the distance from inferior alveolar nerve to inferior mandibular border at third molar. http://dx.doi.org/10.1016/j.ijom.2015.08.634 Sectioned images and surface models of a cadaver for understanding the deep circumflex iliac artery flap H.J. Kim 1,∗ , B.C. Kim 2 1
Yonsei University School of Dentistry, Seoul, Republic of Korea Wonkwang University College of Dentistry, Daejeon, Republic of Korea
2
The aim of this study was to describe the deep circumflex iliac artery (DCIA) flap from sectioned images and stereoscopic anatomic models using Visible Korean, for the benefit of medical education and clinical training in the field of oromandibular reconstructive surgery. Serially sectioned images of the pelvic area were obtained from a cadaver. Outlines of significant structures in the sectioned images were drawn and stacked to build
Sectioned images and surface models of a cadaver for understanding the dorsalis pedis flap H.J. Kim 1,∗ , B.C. Kim 2 1
Yonsei University School of Dentistry, Seoul, Republic of Korea Wonkwang University College of Dentistry, Daejeon, Republic of Korea
2
The aim of this study is to represent the dorsalis pedis (DP) flap on sectioned images and surface models using Visible Korean for medical education and clinical training in the field of maxillofacial reconstructive surgery. Serially sectioned images of the foot were obtained from a cadaver. The important structures in the sectioned images were outlined and stacked to create a surface model. The PDF file (53 MB) of the assembled models is accessible for free download on the Department of Anatomy at Ajou University School of Medicine website (http://anatomy.co.kr). In this file, the significant anatomic structures of the DP flap can be inspected in the sectioned images. All surface models and stereoscopic structures of the DP flap are described in real-time. We hope that these state of-the-art sectioned images, outlined images, and surface models will help students and trainees gain a better understanding of the DP flap anatomy. http://dx.doi.org/10.1016/j.ijom.2015.08.636 Stage IV oral malignant melanoma: a case report and literature review J. Kirimi 1,∗ , S. Guthua 1 , E. Dimba 1,2 , B. Omondi 2 , D. Kota 2 1
Department of Oral Maxillofacial Surgery, Oral Medicine & Oral Pathology, University of Nairobi, Nairobi, Kenya 2 Department of Conservative & Prothodontic Dentistry, University of Nairobi, Nairobi, Kenya Oral melanoma is a very rare aggressive malignancy with unknown aetiology. It is a malignant neoplasm of melanocytes. It accounts for 0.2–8.0% of all reported melanomas. It occurs commonly between the ages of 41 and 60 years. The common sites of its intra-oral occurrence are the palate and gingiva with the maxilla being affected in 80% of the cases. Gender distribution has been reported as female to male of 1:1. Because of its presence at relatively obscure areas in the oral cavity, most oral malignant melanomas are diagnosed at a late stage. These lesions are associated with poor prognosis. In this paper, we present a rare case of malignant melanoma in the maxilla with poor outcome in a 59-year-old Kenyan male. http://dx.doi.org/10.1016/j.ijom.2015.08.637