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Reconstruction of facial defects with kite flap on a subcutaneous pedicle
Free Papers—Poster Presentations supply and high success rate. It can provide enough tissue for reconstruction of defects. This method is simple and practical. It is one of the effective methods for reconstruction of the big-sized defect after oral cancer operation. doi:10.1016/j.ijom.2009.03.648
P176 Reconstruction of facial defects with kite flap on a subcutaneous pedicle Z. Xu ∗ , X. Bai, W. Duan, X. Tan, C. Sun Department of Oral and Maxillofacial Surgery, School of Stomatology, China Medical University, Shenyang, China
Background and Objectives: To evaluate the effects of kite flap on a subcutaneous pedicle in reconstruction of medium-sized round skin defects in the face. Methods: From August 2004 to December 2008, kite flaps on a subcutaneous pedicle were utilised to repair 13 medium-sized skin defects due to surgical removal of skin tumours in the face. The size of lesions ranged about 3.0 cm × 5.0 cm. Results: All flaps survived with primary healing postoperatively. With a follow-up ranging from 0.5–48 months, the flaps colour was the same as the adjacent skin, and shape and cosmetic results were satisfactory. Scars were camouflaged into natural skin tension line. No displacement of the anatomical landmarks and recurrence of tumour were observed. Conclusion: The method is simple and the flap is abundant in blood supply. Kite flap may be a reliable and ideal method for reconstruction of medium-sized skin defects in the face. doi:10.1016/j.ijom.2009.03.649
P177 Establishing normal craniomaxillofacial skeletal structure database with Delaire architectural analysis and preliminary study of its features Q. Wang Department of Oral and Maxillofacial Surgery, The Affiliated Stomatologic Hospital, Chongqing Medical University, Yuzhong District, Chongqing, China
Background and Objectives: Cephalometric analysis has been used for nearly 80 years, and it has become one of the most important tools of clinical work and research in orthodontics and orthognathic
surgery. Delaire architectural analysis is being increasing emphasised. One of the most prominent characteristics is considering the craniomaxillofacial-cervical skeletal structure as an integrated “architectural complex” in the physiological state, and the components will achieve biomechanics equilibrium by mutual influence. The objective of this study is to establish normal Delaire architectural analysis database of the Han nationality adults with normal occlusion in southwest of China, and explore the craniomaxillofacial skeletal structure features. Methods: These data were compared with Korean and French, and will be also used for designing software in future which could be used to analyse dentofacial dysmorphosis. Results and Conclusion: Establishing the normal database of craniomaxillofacial skeletal structure of Chongqing adults with Delaire architectural analysis. The characteristics of craniomaxillofacial skeletal structure were similar in Chongqing and Korean females. The comparison has revealed statistically significant differences between Europeans and Asians.
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remaining 2 rats (control group, G3), sham surgery was performed done on both sides. Biopsies were harvested 12 weeks after surgery and examined under light microscope using osmic acid stains. The number of nerve fibres was counted in the distal and proximal nerve segments, and the results were analysed and compared in all groups. Results: Adequate regeneration with no anastomotic ruptures was seen 12 weeks after surgery in G1 and G2. The histomorphometric assessment showed no statistically significant difference (P = 0.960) in the neurotisation index of G1 (89.01%) compared with G2 (88.97%). There was a significant (P = 0.001) reduction in the mean number of axon counts distal to the repair in G1 (271.3) and G2 (272.8) compared with that of the proximal segments of each study group (304.6 and 303, respectively), as well as to that of G3 (348.5). Conclusion: Both n-butyl-2-cyanoacrylate adhesive and 3-microsuture techniques showed comparable neurotisation indices and were equally adequate to stabilise the nerve during regeneration period. However, the adhesive technique may be more advantageous in the anatomically confined locations.
doi:10.1016/j.ijom.2009.03.650 doi:10.1016/j.ijom.2009.03.651
P178 Cyanoacrylate glue versus microsuture in peripheral nerve reanastomosis R.F. Elgazzar 1,2,∗ , I. Abdulmajued 3,4 , M. Mutabbagani 4 , A. Sadakah 2 1 Department of Dental Diagnostic and Surgical Sciences, Division of Oral and Maxillofacial Surgery, Faculty of Dentistry, University of Manitoba, Winnipeg, Canada 2 Department of Oral and Maxillofacial Surgery, Tanta University, Tanta, Egypt 3 Department of Anatomy, Faculty of Medicine, Alexandria University, Egypt 4 Department of Anatomy, College of Medicine, King Faisal University, Kingdom of Saudi Arabia
Background and Objectives: The ideal technique for performing peripheral nerve anastomosis is yet to be developed. The aim of this study was to assess the effectiveness of n-butyl-2-cyanoacrylate glue compared with the microsuturing technique in peripheral nerve reanastomosis in rats. Methods: Fourteen young adult white rats were used. Bilateral sciatic neurotomies were performed in 12 of them and then reanastomosed with 3 epineural microsutures in the right side (study group, G1) and with n-butyl-2-cyanoacrylate glue in the left side (study group, G2). On the
P179 Individual reconstructive surgery of skeletal defects R. Jirman ∗ , Z. Horak Department of Stomatology, First Faculty of Medicine, Charles University in Prague, Katerinska, Prague, Czech Republic
Background and Objectives: The main aim of this project is to create fast, accurate and effective method for designing and production of custom made skeletal bone defect replacements. Implants are made from the biomaterials commonly used in clinical practice. Methods: Individual implants were produced on the basis of three-dimensional geometric models designed from available diagnostic imaging methods (computed tomography and magnetic resonance imaging), and their following computer processing. For production of implants by conventional computerised numerical control machining were used biomaterials commonly used in clinical practice (titanium, polyetheretherketone, ultra-high molecular weight polyethylene), which can be machined and are suitable for long time implantation. Results: In this work, several clinical cases of individual bone defect replacements
P176 Reconstruction of facial defects with kite flap on a subcutaneous pedicle Z. Xu ∗ , X. Bai, W. Duan, X. Tan, C. Sun Department of Oral and Maxillofacial Surgery, School of Stomatology, China Medical University, Shenyang, China
Background and Objectives: To evaluate the effects of kite flap on a subcutaneous pedicle in reconstruction of medium-sized round skin defects in the face. Methods: From August 2004 to December 2008, kite flaps on a subcutaneous pedicle were utilised to repair 13 medium-sized skin defects due to surgical removal of skin tumours in the face. The size of lesions ranged about 3.0 cm × 5.0 cm. Results: All flaps survived with primary healing postoperatively. With a follow-up ranging from 0.5–48 months, the flaps colour was the same as the adjacent skin, and shape and cosmetic results were satisfactory. Scars were camouflaged into natural skin tension line. No displacement of the anatomical landmarks and recurrence of tumour were observed. Conclusion: The method is simple and the flap is abundant in blood supply. Kite flap may be a reliable and ideal method for reconstruction of medium-sized skin defects in the face. doi:10.1016/j.ijom.2009.03.649
P177 Establishing normal craniomaxillofacial skeletal structure database with Delaire architectural analysis and preliminary study of its features Q. Wang Department of Oral and Maxillofacial Surgery, The Affiliated Stomatologic Hospital, Chongqing Medical University, Yuzhong District, Chongqing, China
Background and Objectives: Cephalometric analysis has been used for nearly 80 years, and it has become one of the most important tools of clinical work and research in orthodontics and orthognathic
surgery. Delaire architectural analysis is being increasing emphasised. One of the most prominent characteristics is considering the craniomaxillofacial-cervical skeletal structure as an integrated “architectural complex” in the physiological state, and the components will achieve biomechanics equilibrium by mutual influence. The objective of this study is to establish normal Delaire architectural analysis database of the Han nationality adults with normal occlusion in southwest of China, and explore the craniomaxillofacial skeletal structure features. Methods: These data were compared with Korean and French, and will be also used for designing software in future which could be used to analyse dentofacial dysmorphosis. Results and Conclusion: Establishing the normal database of craniomaxillofacial skeletal structure of Chongqing adults with Delaire architectural analysis. The characteristics of craniomaxillofacial skeletal structure were similar in Chongqing and Korean females. The comparison has revealed statistically significant differences between Europeans and Asians.
583
remaining 2 rats (control group, G3), sham surgery was performed done on both sides. Biopsies were harvested 12 weeks after surgery and examined under light microscope using osmic acid stains. The number of nerve fibres was counted in the distal and proximal nerve segments, and the results were analysed and compared in all groups. Results: Adequate regeneration with no anastomotic ruptures was seen 12 weeks after surgery in G1 and G2. The histomorphometric assessment showed no statistically significant difference (P = 0.960) in the neurotisation index of G1 (89.01%) compared with G2 (88.97%). There was a significant (P = 0.001) reduction in the mean number of axon counts distal to the repair in G1 (271.3) and G2 (272.8) compared with that of the proximal segments of each study group (304.6 and 303, respectively), as well as to that of G3 (348.5). Conclusion: Both n-butyl-2-cyanoacrylate adhesive and 3-microsuture techniques showed comparable neurotisation indices and were equally adequate to stabilise the nerve during regeneration period. However, the adhesive technique may be more advantageous in the anatomically confined locations.
doi:10.1016/j.ijom.2009.03.650 doi:10.1016/j.ijom.2009.03.651
P178 Cyanoacrylate glue versus microsuture in peripheral nerve reanastomosis R.F. Elgazzar 1,2,∗ , I. Abdulmajued 3,4 , M. Mutabbagani 4 , A. Sadakah 2 1 Department of Dental Diagnostic and Surgical Sciences, Division of Oral and Maxillofacial Surgery, Faculty of Dentistry, University of Manitoba, Winnipeg, Canada 2 Department of Oral and Maxillofacial Surgery, Tanta University, Tanta, Egypt 3 Department of Anatomy, Faculty of Medicine, Alexandria University, Egypt 4 Department of Anatomy, College of Medicine, King Faisal University, Kingdom of Saudi Arabia
Background and Objectives: The ideal technique for performing peripheral nerve anastomosis is yet to be developed. The aim of this study was to assess the effectiveness of n-butyl-2-cyanoacrylate glue compared with the microsuturing technique in peripheral nerve reanastomosis in rats. Methods: Fourteen young adult white rats were used. Bilateral sciatic neurotomies were performed in 12 of them and then reanastomosed with 3 epineural microsutures in the right side (study group, G1) and with n-butyl-2-cyanoacrylate glue in the left side (study group, G2). On the
P179 Individual reconstructive surgery of skeletal defects R. Jirman ∗ , Z. Horak Department of Stomatology, First Faculty of Medicine, Charles University in Prague, Katerinska, Prague, Czech Republic
Background and Objectives: The main aim of this project is to create fast, accurate and effective method for designing and production of custom made skeletal bone defect replacements. Implants are made from the biomaterials commonly used in clinical practice. Methods: Individual implants were produced on the basis of three-dimensional geometric models designed from available diagnostic imaging methods (computed tomography and magnetic resonance imaging), and their following computer processing. For production of implants by conventional computerised numerical control machining were used biomaterials commonly used in clinical practice (titanium, polyetheretherketone, ultra-high molecular weight polyethylene), which can be machined and are suitable for long time implantation. Results: In this work, several clinical cases of individual bone defect replacements