1.Paradigm Shift in Orthognathic Surgery: Surgery First Orthognathic Approach and Aesthetic Two-jaw Surgery.
Sang Hoon PARK ; Won Sok HYON ; Joong Kyu LEE ; Yang Ku LEE
Journal of the Korean Society of Aesthetic Plastic Surgery 2010;16(1):9-14
Orthognathic surgery became more popular because people are more interested in facial profile changes and are more receptive to surgery. As people seek beauty as well as function in maxillofacial surgery, patient's aesthetic demand becomes higher. Considering these big changes, one of the major reasons is surgery-first orthognathic approach(SFOA), which removes pre-surgical orthodontic treatment. Pre-surgical orthodontic time has been a great barrier to patients in terms of time and social rehabilitation. By SFOA, patients can get surgery as soon as they make up their mind; Patients from abroad can get surgery and get back to their country; They can go back to their work more easily because their occlusion is more acceptable. Surgery first orthognathic approach is still developing in practice and principle. However, as it is based on patient's need, it will play a greater part in the field of orthognathic surgery. Surgery first orthognathic approach together with aesthetic two jaw surgery are expected to change the paradigm in orthognathic surgery.
Beauty
;
Humans
;
Orthognathic Surgery
;
Surgery, Oral
2.Malignant Transformation of Fibrous Dysplasia: A Case Report of Malignant Fibrous Histiocytoma of Facial Bone.
Sang Joon LEE ; So Young LIM ; Kap Sung OH ; Sa Ik BANG ; Won Sok HYON ; Goo Hyun MUN
Journal of the Korean Society of Plastic and Reconstructive Surgeons 2007;34(3):403-405
PURPOSE: Malignant degeneration of fibrous dysplasia is an uncommon recognized complication of this disease. Especially, degeneration of fibrous dysplasia to malignant fibrous histiocytoma(MFH) in facial bone is rare and the publications had been limited. The purpose of this report is to share our experience. METHODS: A 46-year-old patient with facial fibrous dysplasia visited our clinic for recent facial tingling and swelling. Malignant degeneration of fibrous dysplasia was suspected. RESULTS: Total excision of the mass and adjacent facial bone was performed. Defect was immediately reconstructed with bone graft and bone cement. At a month follow up, metastasis was detected at ipsilateral parotid gland. Superficial parotidectomy and neck dissection was performed. The patient is currently taking chemotherapy. CONCLUSION: Because of the uncommon presentation of this entity, clinical course of treatment was dependent on other histological types of malignant degeneration. We report this case to share our experience.
Drug Therapy
;
Facial Bones*
;
Follow-Up Studies
;
Histiocytoma, Malignant Fibrous*
;
Humans
;
Middle Aged
;
Neck Dissection
;
Neoplasm Metastasis
;
Parotid Gland
;
Transplants
3.Myoepithelioma of the Parotid Gland: A Case Report.
Cheol Ho CHANG ; So Young LIM ; Won Sok HYON ; Sa Ik BANG ; Kap Sung OH ; Goo Hyun MUN
Journal of the Korean Society of Plastic and Reconstructive Surgeons 2007;34(2):258-260
PURPOSE: Myoepithelioma is a rare tumor that originates exclusively from myoepithelial cells of the salivary glands, breast and the prostate. Myoepithelioma accounts for less than 1% of all salivary gland tumors. The objective of our study is to present our experience of the infra- auricular mass which was finally diagnosed as a myoepithelioma. METHODS: A 54-year-old woman was presented with a firm, movable, slow-growing infra-auricular mass with 3 cm in diameter. MRI scans and fine needle biopsy was performed for preoperative diagnostic study. A superficial parotidectomy was preceded and removed tumor successfully. RESULTS: Histopathological study revealed a myoepithelioma of plasmacytoid type. Patient's postoperative course was uneventful without any complication and had no evidence of recurrence of tumor for 9 months follow- up period. CONCLUSION: Myoepithelioma in the parotid gland shows similar clinical courses and intraoperative finding to the pleomorphic adenoma and superficial parotidectomy was selective choice for treatment.
Adenoma, Pleomorphic
;
Biopsy, Fine-Needle
;
Breast
;
Female
;
Humans
;
Magnetic Resonance Imaging
;
Middle Aged
;
Myoepithelioma*
;
Parotid Gland*
;
Prostate
;
Recurrence
;
Salivary Glands
4.Experience of Benign Multiple Symmetrical Lipomatosis.
Chul HUH ; Goo Hyun MUN ; Soo Hyang LEE ; Hyung Joon KIM ; So Young LIM ; Won Sok HYON ; Sa Ik BANG ; Kap Sung OH
Journal of the Korean Cleft Palate-Craniofacial Association 2007;8(1):29-32
Benign symmetrical lipomatosis, also known as Madelung's disease, is a rare condition characterized by massive fatty deposits arranged symmetrically around the neck, shoulders, and arms. Patients usually complain of their cosmetic appearance, but treatment can be considered for decreased neck motion and/or aerodigestive problems. Surgical lipectomy and liposuction are treatment of choice, but recurrence is common. Because the distribution of the lesion tends to be wide and diffuse, single operation is not sufficient for improving contour and functional problems, especially in severely affected case. We experienced a progressed patient who suffered from limitation of neck motion, dyspnea including sleep apnea due to massive deposits on whole neck. We performed 2 staged operations for the purpose of removing as much lipomatous tissue as possible. After 2 staged excisions, patient's appearance and aerodigestive problems are much improved and recurrence is not observed.
Arm
;
Dyspnea
;
Humans
;
Lipectomy
;
Lipomatosis
;
Lipomatosis, Multiple Symmetrical*
;
Neck
;
Recurrence
;
Shoulder
;
Sleep Apnea Syndromes
5.Growth Hormone Treatment in Prader-Willi Syndrome.
Ji Eun PARK ; Seung Won LEE ; Kyoung Eun SONG ; Hyoung Suk LEE ; Dae Jung KIM ; Yoon Sok CHUNG ; Kwan Woo LEE ; Hyon Joo KIM
Journal of Korean Society of Endocrinology 2006;21(1):40-46
BACKGROUND: Prader-Willi syndrome (PWS) is a congenital disorder, which is clinically characterized by a short stature, muscular hypotonia, hypogonadism, mental retardation and hyperphagia, leading to early childhood obesity. Impaired growth hormone (GH) secretion, hypogonadism, and obesity are common in patients with PWS. The purpose of this study was to find the effects of growth hormone treatment in patients with PWS. METHODS: Six patients with PWS confirmed by a genetic study were recruited, and treated with growth hormone(Eutropin(R))(0.8-1 IU/kg/week) divided into five or seven day doses per week for six months. The heights and weights of the subjects were evaluated. GH status were evaluated using the serum insulin-like growth factor (IGF)-I level, the L-dopa test, and insulin-induced hypoglycemia tess. Glucose metabolism was evaluated using the random serum glucose and HbA1c levels. RESULTS: GH was found to be deficient in 2 out of 6 subjects by the insulin test, in 3 out of 6 by the IGF-I level, and in 5 out of in 5 by the L-dopa test. After six months of GH treatment, the height percentile was increased and weight percentile decreased. The serum glucose and HbA1c levels remained unchanged. CONCLUSION: Six months of GH treatment in patients with PWS improved the height and degree of obesity. This study has shown the beneficial effects of GH treatment for patients with PWS, and without significant side effects.
Blood Glucose
;
Congenital, Hereditary, and Neonatal Diseases and Abnormalities
;
Glucose
;
Growth Hormone*
;
Humans
;
Hyperphagia
;
Hypoglycemia
;
Hypogonadism
;
Insulin
;
Insulin-Like Growth Factor I
;
Intellectual Disability
;
Levodopa
;
Metabolism
;
Muscle Hypotonia
;
Obesity
;
Pediatric Obesity
;
Prader-Willi Syndrome*
;
Weights and Measures
6.Treatment of Beign Multiple Symmetrical Lipomatosis with Liposuction.
Chul HUH ; So Young LIM ; Goo Hyun MUN ; Won Sok HYON ; Sa Ik BANG ; Kap Sung OH
Journal of the Korean Society of Plastic and Reconstructive Surgeons 2006;33(6):769-772
PURPOSE: Benign symmetrical lipomatosis(Madelung's disease) is a disease of uncertain etiology that manifests as massive lipomatous deposits in specific area of the body. It is usually located on the neck, shoulder, proximal regions of the extremities and the abdomen. Madelung's disease is found many in middle-aged, Mediterranean man. Imaging using either computed tomography or magnetic resonance imaging is often recommended. Dietary restriction provides no relief of disease. Abstinence with alcohol may delay further progression but does not regression tumor mass. The objective of this study is to prove effectiveness of liposuction for treatment of benign lipomatosis. METHODS: We conducted liposuction as a treatment for benign lipomatosis. After general anesthesia, We conducted power assisted liposuction and amount of suctioned volume was about 2500 cc. After surgery, we did compressive dressing and then followed by pressure garment. RESULTS: Six months after surgery, patient was examined for follow up at outpatient department. Recurred lipoma was not observated. Patient was satisfied with result. CONCLUSION: The only effective therapy for Madelung's disease is surgical removal but recurrence could be occurring. Also multiple surgical scars will be visible. We report a patient with multiple large lipomatosis successfully treated with liposuction.
Abdomen
;
Anesthesia, General
;
Bandages
;
Cicatrix
;
Extremities
;
Follow-Up Studies
;
Humans
;
Lipectomy*
;
Lipoma
;
Lipomatosis
;
Lipomatosis, Multiple Symmetrical*
;
Magnetic Resonance Imaging
;
Neck
;
Outpatients
;
Recurrence
;
Shoulder
;
Suction
7.Atypical Fibroxanthoma of Scalp Involving Occipital Bone.
Yong Woo JO ; So Young LIM ; Goo Hyun MUN ; Won Sok HYON ; Sa Ik BANG ; Kap Sung OH
Journal of the Korean Society of Plastic and Reconstructive Surgeons 2006;33(3):383-387
Atypical fibroxanthoma is a pleomorphic spindle cell neoplasm characterized by a variable combination of cells with fibroblastic and histiocytic features. It occurs mostly on sun-exposed area of the head and neck of elderly person and is a clinically benign reactive lesion despite apparent malignant histologic features. However, because of its potential for metastasis, it is widely regarded as a low-grade sarcoma. We report a 30-year-old woman with atypical fibroxanthoma developed on the left occipital area. The lesion was 1.5 x 2 cm sized papule. There was no skin lesion such as ulcer or eschar. However, mass was involving occipital bone and composed of dense, pleomorphic spindle cells and several bizarre multinucleated giant cells. After wide excision of the scalp and occipital bone, the defect was covered with bone cement, bipedicled local flap and the donor site was covered with STSG. The wound healed completely without complication. It remained free of recurrence for a period of about 1 year follow up.
Adult
;
Aged
;
Female
;
Fibroblasts
;
Follow-Up Studies
;
Giant Cells
;
Head
;
Humans
;
Neck
;
Neoplasm Metastasis
;
Occipital Bone*
;
Recurrence
;
Sarcoma
;
Scalp*
;
Skin
;
Tissue Donors
;
Ulcer
;
Wounds and Injuries
8.Cranioplasty in Frontometaphyseal Dysplasia.
Eui Seok JUNG ; Goo Hyun MUN ; So Young LIM ; Won Sok HYON ; Sa Ik BANG ; Kap Sung OH ; Jae Kyung PYUN
Journal of the Korean Society of Plastic and Reconstructive Surgeons 2006;33(3):371-375
Frontometaphyseal dysplasia is a rare genetic syndrome first described by Gorlin and Cohen in 1969. This disease affects the skeletal system and connective tissue, and could be characterized by hyperostosis of the skull, prominence of supraorbital ridges, additional skeletal and extraskeletal abnormalities. It is believed that the condition is an X-linked dominant trait with severe manifextations in males and extreme variability in females. We described a case of 15-year-old boy manifested a pronounced supraorbital ridge associated with exorbitism. He also had bilateral progressive hearing deficit, thoracic spine scoliosis, chest wall deformity, bilateral maxillary sinusitis and both 5th finger arachnodactyly. The patient underwent a fronto-temporo-orbital cranioplasty through a coronal incision. The frontal bone including supraorbital region, orbital lateral rim and temporal bone were extensively contoured with burr. And then, burring of the medial aspect of lateral orbital wall was made to increase both orbital volume for correction of exorbitism. Postoperative results show well corrected prominent supraorbital ridge, hyperostosis of frontotemporal bone and exorbitism. The patient was satisfied with the improved appearance. No recurrence occurred during the 6 months of follow-up period. We report this case as it shows esthetically good result without any complication.
Adolescent
;
Arachnodactyly
;
Congenital Abnormalities
;
Connective Tissue
;
Female
;
Fingers
;
Follow-Up Studies
;
Frontal Bone
;
Hearing
;
Humans
;
Hyperostosis
;
Male
;
Maxillary Sinus
;
Maxillary Sinusitis
;
Orbit
;
Recurrence
;
Scoliosis
;
Skull
;
Spine
;
Temporal Bone
;
Thoracic Wall
9.Anterolateral Thigh Flap: Our Experiences in Head and Neck Reconstruction.
Byeng June JEON ; So Young LIM ; Won Sok HYON ; Sa Ik BANG ; Kap Sung OH ; Goo Hyun MUN
Journal of the Korean Society of Plastic and Reconstructive Surgeons 2006;33(3):276-282
The anterolateral thigh(ALT) flap has been known as a very versatile and reliable flap. We report our experiences with the anterolateral thigh flap for the postoncologic reconstruction of head and neck region from April 2002 to March 2005. A total of 38 subjects (M: F=30:8, mean age:53.8 years) were taken. We reviewed primary site of tumors, size and thickness of flaps, location and number of perforators, course of perforators, length of pedicle, and postoperative complications. The mean flap size, thickness and pedicle length were 11.8 x 6.4 cm, 1.1 cm and 12.2 cm, respectively. We classified the pedicles based on the authors' criteria. Type I, pedicle with short intramuscular course, was with 29 cases(72.5%), type II, pedicle with long intramuscular course, with 6 cases(15%), type III, pedicle with septocutaneous course, with 3 cases(7.5%), and type IV, clinically unavailable pedicle, with 2 cases (5%). We experienced 1 case of partial and 1 case of total flap loss. There was 1 case of donor site wound dehiscence, which was treated by debridement and closure. According to the defect, efficient adjustment of the size and thickness of flap was possible, and favorable functional and aesthetic results have been obtained in our study. Our experience confirmed the versatility and usefulness of the anterolateral thigh flap for various reconstructions in head and neck region.
Debridement
;
Head*
;
Humans
;
Neck*
;
Postoperative Complications
;
Reconstructive Surgical Procedures
;
Surgical Flaps
;
Thigh*
;
Tissue Donors
;
Wounds and Injuries
10.Differentiation and Labeling of Mouse Preadipocytes for Allogenic Transplantation Study.
In Ok KIM ; Taek Seung KIM ; Mi Hyung KIM ; Won Sok HYON ; Goo Hyun MUN ; Kap Sung OH ; Sa Ik BANG
Journal of the Korean Society of Plastic and Reconstructive Surgeons 2005;32(4):533-538
Due to its safety and softness, autologous fat transplantation has been commonly performed for soft tissue correction. However, the injected fat is absorbed resulting in the reduction of volume of the graft by 40- 60% within a few months. Thus, there was an attempt to use adipocytes differentiated from preadipocytes in vitro for transplantation. Differentiated adipocytes were biocompatible and matured with gradual volume increase at transplantation site in clinical study(unpublished data). In addition, they did not induce immune rejection in response to nonself lymphocytes in a mixed lymphocyte reaction(MLR)(unpublished data). The purpose of this study is to differentiate mouse preadipocytes following labeling into adipocytes to establish an animal model for allogenic transplantation. Preadipocytes isolated from inguinal and retroperitoneal fat pad of C57BL/6 mice were proliferated with growth medium by passage 3 and differentiated into adipocytes with different culture conditions after labeled with BrdU. At most suitable conditions, above 90% of preadipocytes were differentiated and BrdU labeling did not affect differentiation rate and function of differentiated adipocytes. These results demonstrate that BrdU-labeled adipocytes resulting from this in vitro differentiation protocol are useful for allogenic transplantation study.
Adipocytes
;
Allografts
;
Animals
;
Bromodeoxyuridine
;
Intra-Abdominal Fat
;
Lymphocytes
;
Mice*
;
Models, Animal
;
Transplants

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