• Korean Journal of Cleft Lip And Palate
• /
• v.15 no.2
• /
• pp.89-96
• /
• 2012

Le Fort 1 osteotomy or maxillary advancement with distraction osteogenesis (DO) is main treatment strategy for cleft palate patients with maxillary hypoplasia. Maxillary DO allows greater maxillary advancement within physiological limit than Le Fort 1 osteotomy. Moreover, it is better for velopharyngeal function. However, there is a greater tendency for an increase in nasal sound when maxilla is advanced excessively. Therefore, the advancement of anterior maxillary segment using DO has been utilized. It offers advantages such as an increase in the length of the palate, a prevention of the change in palatopharyngeal depth, and a preservation of the velopharyngeal function. Moreover, it will obliterate the necessity of bone graft, and it prevents the occurrence of oronasal or oroantral fistula. Finally, it stimulates the regeneration of the soft and hard tissue of alveolus, and subsequently makes possible to place implant.

• Imaging Science in Dentistry
• /
• v.39 no.4
• /
• pp.205-208
• /
• 2009

Aneurysmal bone cyst (ABC) is relatively rare, non-neoplastic expansile lesion of bone. The case of a IS-year-old male with a ABC of the left mandibular condyle is presented. Panoramic radiograph showed a unilocular radiolucency with thinned coritces and a subcondylar fracuture which was due to the trauma. Computed tomography (CT) revealed expansile lesion which had similar attenuation soft tissue. The patient was treated surgically including iliac crestal bone graft.

• Maxillofacial Plastic and Reconstructive Surgery
• /
• v.21 no.1
• /
• pp.81-88
• /
• 1999

A fibrin adhesive have been widely used in oral and maxillofacial surgery for microvascular anastomosis, autogenous chip bone grafts, many kinds of soft tissue surgery (vestibuloplasty, bleeding control after extraction, primary healing by covering of suture of a gum after the extirpation of large cysts). There are two principal components in adhesive systems biologically: lyophilized human fibrinogen and bovine thrombin. The fibrinogen component contains coagulation factor XIII and enhance the initial wound healing, which polymerizes soluble fibrin monomers into an insoluble clot. The thrombin is dissolved in a solution of calcium chloride to provide the second component. We applied fibrin adhesive, Beriplast (Behring, Behringwerke AG, D-3350, Marburg, FRD), to 4 patients for fixation of free skin grafting donors who had facial scar around eye, nose, mouth corner which received from accidents, or burn. We have experienced initial accelerated graft fixation between donor and recipient sites with no additional fixation. And It's made easy bleeding control and easy manipulation during operation. But two cases showed partial hypertrophic scar engrowth in above 3 months follow up, but no significant. Histopathological reviews in general were showed similar scar findings such as abundant collagen bundles in H&E, M/T stain, but slight positive signs in elastic and collagen antibody immunopathologic findings in hypertrophic scar cases.

• Proceedings of the KOR-BRONCHOESO Conference
• /
• 1993.05a
• /
• pp.81-81
• /
• 1993

Tracheal stenosis in children are often the result of prolonged intubation and its treatment depends on the severity and extent of the involved segment. Repeated surgical endoscopic procedures may be indicated in those with mild stenoses mainly consisting of granulation tissues, However, surgical reconstruction of the airway should be performed in patients with severe, extensive stenoses composed of mature scar tissue. The senior author has successfully managed such patients with cartilage graft augmentation and tracheal resection anastomosis. This is a presentation of 9 pediatric patients with tracheal stenosis who have been successfully treated by resection anastomosis. The details of the cases and indications for this type of surgery are discussed.

• Journal of Periodontal and Implant Science
• /
• v.36 no.2
• /
• pp.435-448
• /
• 2006

The purpose of this study was to investigate the effects of ICB(Irradiated frozen allogenic bone, Rocky Mountain Tissue Bank, USA) and MTF(Decalcified freeze-dried bone allograft, Musculoskeletal Transplant Foundation, USA) on the cell proliferation and differentiation of human fetal osteoblasts. Human fetal osteoblasts (hFOB1) were cultured with $10\;ng/m{\ell}$of ICB and MTF. The negatvie control group was cultured with DMSO and positive control group was cultured with BMF ($2\;ng/m{\ell}$). MIT was performed to examine the viability of the cell, and alkaline phosphatase activity was analyzed to examine the mineralization. Calcium accumulation was also evaluated. ICB and MTF did not increase the rate of the cellular proliferation of hFOB1s while they enhanced ALP and calcium accumulation. The expression of osteocalcin (OC) and bone silaloprotein (BSP) increased in hFOB1 treated with ICB and MTF ($10\;ng/m{\ell}$). These results suggest that ICB and MTF stimulate osteoblastic activity of the hFOBl.

• Journal of Periodontal and Implant Science
• /
• v.38 no.3
• /
• pp.551-556
• /
• 2008

Purpose: Cemental tear is an uncommon form of root fracture that can lead to rapid localized attachment loss. When it is exposed in the periodontal pocket, it should be removed to prevent accumulation of dental plaque and calculus. Material and Methods: 2 patients were diagnosed as a cemental tear and they were treated with conventional flap operation and subgingival curettage. Additional treatments such as bone graft or guided tissue regeneration were not performed. Result: Symptoms subsided after the treatment. Periodontal pocket has been reduced but no gain of clinical attachment was observed. Remnant of cemental fragment remained after curettage. However, periodontal pocket was stably maintained and there was no recurrence. Conclusion: Periodontal attachment loss associated with cemental tear can be successfully treated with conventional periodontal surgical and nonsurgical procedures.

• The Journal of the Korean bone and joint tumor society
• /
• v.12 no.2
• /
• pp.165-170
• /
• 2006

We reported a case of chondrosarcoma in proximal tibia in a 44-year-old man. MR images demonstrated a $3.5{\times}20$ cm sized bone tumor. In reconstruction of resected proximal tibia, we used the allograft bone and soft tissue defects were covered by medial gastrocnemius rotation flap and skin graft. There were no local recurrence and distant metastasis and any complication such as secondary infection, nonunion, metal failure at the time of the last follow-up. There was no limitation of knee motion through the appropriate rehabilitaion programs.

• The Journal of the Korean bone and joint tumor society
• /
• v.15 no.1
• /
• pp.87-91
• /
• 2009

Fibrous dysplasia is a developmental benign disorder in which normal bone is replaced by fibrous tissue. Malignant transformation of fibrous dysplasia is a rare complication and more commonly occur in the polyostotic form than monostotic form. We report a case in which osteosarcoma developed in area of fibrous dysplasia of proximal femur after treating with curettage, wedge osteotomy, internal fixation, and bone graft. A review of the literature is presented.

• The Journal of the Korean dental association
• /
• v.15 no.2
• /
• pp.121-124
• /
• 1977

The most common and the most serious complication of the burn is infection, which is to a certain extent inevitable in the light of present knowledge and experience. From the burn wound as a rule there may be cultured at any given time the prevailing flora of the individual patient and of the hospital attendants and ward environ ment. Even without contamination from outside sources, organisms embedded in hair follicles and sweat glands survive the sterilizing effects of heat and serve as potential sources of localized and systemic infection. With necrotic tissue serving as nutrient material for pathogens there may occur, in succession, cellulitis, extending necrosis, lymphangitis and final septicemia. This is to report a case of osteomyelitis due to facial burn of 32 year old Korean male. The authors treated the patient by curettage and thin split thickness skin graft. The post operative course was uncomplicated and result was excellent.

• Archives of Plastic Surgery
• /
• v.36 no.5
• /
• pp.660-662
• /
• 2009

Purpose: There are several modalities to reattach the amputated auricle. Microvascular replantation can achieve the best outcome, but technically difficult. Conventional composite graft is technically easy, but uniformly unsuccessful. Our successful experience of reattachment using postauricular subcutaneous pocket is presented. Methods: The amputated tissue was placed in its anatomical position with buried sutures. The amputated part is dermabraded to remove the epidermis and outer layer of dermis(Fig. 1, Center, left). Postauricular skin flap was then raised and the reattached dermabraded ear was buried beneath the flap(Fig. 1, Center, right). Two weeks after the original surgery, the buried ear was removed from its pocket (Fig. 1, Below, left). Results: The ear was reepithelialized spontaneously in 7 days. At 3 months, the reattached ear has satisfactory appearance without contour deformity(Fig. 1, Below, right). Conclusion: This technique provides increase in contact surface between the amputated segment and the surrounding tissues which supply blood, serum, oxygen and nutrients, maximizing the probability of "take". Minimally injured dermis can be healed from spontaneous reepithelialization and provides minimal contour deformity. We have used this non-microsurgical technique with very satisfying outcome.