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Rigid External Distraction System을 이용한 구순구개열 상악열성장의 치료 후 회귀현상
도형식,송영일,장환용,이진용,장현석,임재석,권종진,이의석 대한구순구개열학회 2013 대한구순구개열학회지 Vol.16 No.1
Distraction osteogenesis is useful treatment which the gradual separation of cut bone edges results in the generation of new bone. It is effective treatment for correcting maxillofacial deformities. Patients with cleft lip and palate usually have maxillary hypoplasia due to scarring of lip and palate. To correct these deformities, we chose to use a 2-jaw orthognathic surgery or distraction osteogenesis. But despite improvements in surgical techniques for maxillofacial deformities, postoperative stability still leaves the question of when relapse may occur. This case report describes the Relapse after treatment of maxillary hypoplasia with cleft lip and palate by Rigid External distraction system over a 2-year treatment and follow-up period. In addition, we reviewed related articles about the influence of the occlusal stability on postoperative stability in patients with cleft lip and palate correction with Distraction osteogenesis.
가토 두개골 결손부에 이식된 저골(猪骨)과 혈소판 풍부 섬유소의 골형성 효과
박정익,전성배,송영일,도형식,이진용,장현석,권종진,임재석,이의석,Park, Jeong Ik,Jeon, Seong Bae,Song, Young Il,Do, Hyung Sik,Lee, Jin Yong,Jang, Hyun Seok,Kwon, Jong Jin,Rim, Jae Suk,Lee, Eui Seok 대한악안면성형재건외과학회 2012 Maxillofacial Plastic Reconstructive Surgery Vol.34 No.6
Purpose: The purpose of this study was to evaluate the effectiveness of the platelet-rich fibrin (PRF) used in combination with the porcine cancellous bone as a scaffold, in promoting bone regeneration in the bone defects ofthe rabbit calvaria. Methods: Ten rabbits were used in the study. Three round-shaped defects (diameter 8.0 mm) were created in the rabbit calvaria and were filled with nothing (control group), porcine cancellousbone (Experimental Group 1, porcine bone) and PRF-mixed porcine cancellous bone (Experimental Group 2). TS-GBB is a xenogenic bone-substitute product comprised of a high heat-treated mineralized porcine cancellous bone. Animals were sacrificed at 6 weeks and 12 weeks for the histological and radiographic evaluations. Results: In the micro computed tomography and histological results, the experimental groups 1 and 2 showed more bone formation, remodeling, and calcification than the control group. The new bone formation ratio showed theGroup 2 to be larger than Group 1 at6 and 12 weeks. However, there was no significant difference between the experimental groups 1 and 2 in the new bone formation area, at the 6 and 12 weeks (P>0.05). Conclusion: The PRF-mixed group showed more bone formation than the porcine cancellousbonegroup (TS-GBB), butthere was a no significant difference. The PRF may not lead to enhanced bone healing when grafted with the porcine cancellous bone.