1.Current Methods for the Treatment of Alveolar Cleft.
Archives of Plastic Surgery 2017;44(3):188-193
Alveolar cleft is a tornado-shaped bone defect in the maxillary arch. The treatment goals for alveolar cleft are stabilization and provision of bone continuity to the maxillary arch, permitting support for tooth eruption, eliminating oronasal fistulas, providing an improved esthetic result, and improving speech. Treatment protocols vary in terms of the operative time, surgical techniques, and graft materials. Early approaches including boneless bone grafting (gingivoperiosteoplasty) and primary bone graft fell into disfavor because they impaired facial growth, and they remain controversial. Secondary bone graft (SBG) is not the most perfect method, but long-term follow-up has shown that the graft is absorbed to a lesser extent, does not impede facial growth, and supports other teeth. Accordingly, SBG in the mixed dentition phase (6–11 years) has become the preferred method of treatment. The most commonly used graft material is cancellous bone from the iliac crest. Recently, many researchers have investigated the use of allogeneic bone, artificial bone, and recombinant human bone morphogenetic protein, along with growth factors because of their ability to decrease donor-site morbidity. Further investigations of bone substitutes and additives will continue to be needed to increase their effectiveness and to reduce complications.
Alveolar Bone Grafting
;
Bone Morphogenetic Proteins
;
Bone Substitutes
;
Bone Transplantation
;
Clinical Protocols
;
Dentition, Mixed
;
Fistula
;
Follow-Up Studies
;
Humans
;
Intercellular Signaling Peptides and Proteins
;
Methods*
;
Operative Time
;
Tooth
;
Tooth Eruption
;
Transplants
2.Contracted Nose after Silicone Implantation: A New Classification System and Treatment Algorithm.
Yong Kyu KIM ; Seungho SHIN ; Nak Heon KANG ; Joo Heon KIM
Archives of Plastic Surgery 2017;44(1):59-64
BACKGROUND: Silicone implants are frequently used in augmentation rhinoplasty in Asians. A common complication of silicone augmentation rhinoplasty is capsular contracture. This is similar to the capsular contracture after augmentation mammoplasty, but a classification for secondary contracture after augmentation rhinoplasty with silicone implants has not yet been established, and treatment algorithms by grade or severity have yet to be developed. METHODS: Photographs of 695 patients who underwent augmentation rhinoplasty with a silicone implant from May 2001 to May 2015 were analyzed. The mean observation period was 11.4 months. Of the patients, 81 were male and 614 were female, with a mean age of 35.9 years. Grades were assigned according to postoperative appearance. Grade I was a natural appearance, as if an implant had not been inserted. Grade II was an unnatural lateral margin of the implant. Clearly identifiable implant deviation was classified as grade III, and short nose deformation was grade IV. RESULTS: Grade I outcomes were found in 498 patients (71.7%), grade II outcomes in 101 (14.5%), grade III outcomes in 75 (10.8%), and grade IV outcomes in 21 patients (3.0%). Revision surgery was indicated for the 13.8% of all patients who had grade III or IV outcomes. CONCLUSIONS: It is important to clinically classify the deformations due to secondary contracture after surgery and to establish treatment algorithms to improve scientific communication among rhinoplasty surgeons. In this study, we suggest guidelines for the clinical classification of secondary capsular contracture after augmentation rhinoplasty, and also propose a treatment algorithm.
Asian Continental Ancestry Group
;
Classification*
;
Contracture
;
Female
;
Humans
;
Implant Capsular Contracture
;
Male
;
Mammaplasty
;
Nose*
;
Prostheses and Implants
;
Rhinoplasty
;
Silicon*
;
Silicones*
;
Surgeons
3.Oncologic safety of self-expanded metal stent insertion as a bridge to elective surgery in malignant colorectal obstruction
Se Hui OH ; Nak Jun CHOI ; Sang Hyuk SEO ; Min Sung AN ; Kwang Hee KIM ; Ki Beom BAE ; Jin Won HWANG ; Sang Heon LEE ; Ji Hyun KIM ; Sam Ryong JEE ; Mi Seon KANG ; Kwan Hee HONG
Korean Journal of Clinical Oncology 2016;12(1):48-54
PURPOSE: Colorectal obstruction develops most frequently by carcinoma, and 7%–30% of these colorectal carcinomas are acute cases. The oncologic safety of self-expanding metal stent (SEMS) insertion as a bridge to surgery has not yet been established. Thus, we investigated the oncologic safety of SEMS insertion as a bridge to surgery in patients with obstructive colorectal cancer.METHODS: This retrospective had 56 patients enrolled requiring emergency management for obstructive colorectal cancer at stage II or III, who had undergone curative surgery between July 2008 and June 2011. These subjects were divided into two groups: patients who had undergone emergency surgery without SEMS insertion (non-stent group) and those who had undergone elective surgery after preoperative decompression with SEMS insertion (stent group). The two groups were compared for clinicopathologic characteristics, postoperative complications, and survival rate.RESULTS: Enterostomy was performed in 25 patients (100.0%) in the non-stent group and 1 patient (3.2%) in the stent group; laparoscopic surgery was carried out in 7 patients (28.0%) in the non-stent group and 19 patients (61.29%) in the stent group, each showing statistically significant differences. There was no statistically significant difference in postoperative complications and 5-year disease-free survival rate (72% vs. 74.19%, P=0.87, respectively).CONCLUSION: In treatment of malignant colorectal obstruction, elective operation after stent insertion had similar oncologic outcomes compared with emergency operation. Preoperative stent insertion not only lowers the incidence of enterostomy but also makes laparoscopic surgery possible, thereby enhancing patients' quality of life. Therefore, preoperative stent insertion is a useful method that may replace emergency surgery in treatment of malignant colorectal obstruction.
Colorectal Neoplasms
;
Decompression
;
Disease-Free Survival
;
Emergencies
;
Enterostomy
;
Humans
;
Incidence
;
Intestinal Obstruction
;
Laparoscopy
;
Methods
;
Postoperative Complications
;
Quality of Life
;
Retrospective Studies
;
Stents
;
Survival Rate
4.Delayed Orbital Hemorrhage around Alloplastic Implants after Blowout Fracture Reduction.
Yong Ah RYU ; Jae Beom PARK ; Hyun Woo KYUNG ; Seung Han SONG ; Nak Heon KANG
Archives of Craniofacial Surgery 2015;16(1):35-38
Alloplastic implants have been used to repair orbital wall fractures in most cases. Orbital hemorrhage is a rare complication of these implants and has been reported rarely in Korea. The purpose of this article is to report a late complication case focusing on their etiology and management. A 20-year-old male patient underwent open reduction with Medpor (porous polyethylene) insertion for bilateral orbital floor fractures. The initial symptom occurred with proptosis in the right side as well as vertical dystopia, which had started 4 days earlier, 8 months after surgery. Any trauma history after the surgery was not present. We performed an exploration and removal of hematoma with Medpor titanium meshed alloplastic implant. A case of delayed orbital hematoma following alloplastic implant insertion was identified. It occurred within the pseudocapsule of the implant. One week after surgery, overall symptoms improved successfully, and no complications were reported during the 11-month follow-up period. Although rare, orbital hemorrhage is a potential complication of alloplastic orbital floor implants, which may present many years after surgery. As in the case presented, delayed hematoma should be included in the differential diagnosis of late proptosis or orbital dystopia.
Diagnosis, Differential
;
Exophthalmos
;
Follow-Up Studies
;
Hematoma
;
Hemorrhage*
;
Humans
;
Korea
;
Male
;
Orbit*
;
Titanium
;
Young Adult
5.Delayed Reduction of Facial Bone Fractures.
Kyu Seop LEE ; Jae Beom PARK ; Seung Han SONG ; Sang Ha OH ; Nak Heon KANG
Archives of Craniofacial Surgery 2013;14(2):119-123
Except for special situations, it is generally agreed that best results in the treatment of facial fractures is expected if reduction is done within the first 2 or 3 weeks after injury. We reduced facial bone fractures at 4 to 7 weeks after trauma. A 44-year-old female patient underwent open reduction for her right zygomaticomaxillary complex fracture at 7 weeks after injury. A 59-year-old female patient underwent surgery for the right mandible body and left parasymphysis fractures at 4 weeks after injury. Using traditional approaches, granulation tissue and callus were removed from the fracture sites, and malunited fracture lines were separated by a small osteotome. We reduced the displaced fractured zygoma and mandible to their normal anatomical positions and fixed them using titanium plates. No complications such as asymmetry, malunion, malocclusion, or trismus were seen. Unfavorable asymmetric facial contours were corrected, and we obtained good occlusion with favorable bony alignment. The functional and aesthetic outcomes were satisfactory. Through removal the callus and limited osteotomy, a successful approach to the previously fractured line was possible, and an exact correction with symmetry was obtained. This method can be a good option for obtaining good mobility and clinical results in treating delayed facial bone fractures.
Adult
;
Bony Callus
;
Facial Bones*
;
Female
;
Fractures, Malunited
;
Granulation Tissue
;
Humans
;
Malocclusion
;
Mandible
;
Mandibular Fractures
;
Middle Aged
;
Osteotomy
;
Titanium
;
Trismus
;
Zygoma
;
Zygomatic Fractures
6.Aesthetic Consideration of Management in Encephalocutaneous Lipomatosis: How we do it.
Jung Mun KIM ; Soon Je KIM ; Seung Han SONG ; Nak Heon KANG
Archives of Aesthetic Plastic Surgery 2012;18(3):147-150
Encephalocraniocutaneous lipomatosis (ECCL) is a rare congenital neurocutaneous syndrome that was characterized by unilateral, smooth, hairless fatty tissue nevi of the scalp, termed nevus psiloliparus, facial lesions, multiple anomalies involving the eye, and ipsilateral porencephalic cysts with cortical atrophy, cranial asymmetry, marked developmental delays, and mental retardation. A 12-month-old boy was referred to our clinic for evaluation of non-scarring alopecia on the left side with an underlying fatty mass in the left parietal scalp and left-sided multiple periocular masses. It showed a large lipomatous mass on the scalp with overlying alopecia. Multiple skin tags and defects in the left periocular area were also observed. Additional ocular anomalies included epibulbar lipodermoid, iris coloboma, and localized peripapillary hypopigmentation lesions. After complete excision, the wound was covered with a local flap. The histologic examination revealed a mass surrounded by a well-developed capsule within the dermal layer, adipose tissue and connective tissue septa extending into the reticular dermis. No recurrence was observed at follow-up. It is essential to differentiate suspected ECCL from other syndromes which present with epibulbar chorisotomas. Neuroimaging, and pathological studies may be helpful for correct diagnosis. We will correct multiple periocular lesions in preschool age and follow up developmental problems like developmental delay and mental retardation constantly.
Adipose Tissue
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Alopecia
;
Atrophy
;
Coloboma
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Connective Tissue
;
Dermis
;
Eye
;
Eye Diseases
;
Follow-Up Studies
;
Humans
;
Hypopigmentation
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Infant
;
Intellectual Disability
;
Iris
;
Lipomatosis
;
Neurocutaneous Syndromes
;
Neuroimaging
;
Nevus
;
Recurrence
;
Scalp
;
Skin
7.Chronic Ulcerating Lesions due to Limited Form of Wegener's Granulomatosis on the Face: Cosmetic Consideration.
Seung Han SONG ; Soon Je KIM ; Joo Hak KIM ; Nak Heon KANG
Archives of Aesthetic Plastic Surgery 2012;18(2):111-114
Wegener's granulomatosis (WG) is a systemic disease characterized by necrotizing granulomas and vasculitis involving the upper and lower respiratory tract as well as the kidneys. Limited form of WG usually involves the head and neck, lacks renal involvement, and may not progress to generalized disease. We report the case of limited form of WG who presented not systemic symptom but several times relapsed multiple ulcerating lesions on the face, uveitis and keratoconjunctivitis. A 23 year-old female initially presented with ulcerative skin lesions on the left cheek and nose. The skin lesion had commenced as an ulcerative and nodulopapular lesion on her right cheek initially, 8 months ago. Subsequently, there was progression of the disease to her left cheek and nose. The patient was treated with oral prednisolone and oral cyclophosphamide. Two weeks later, skin lesion had started to heal, oral prednisolone tapered to 15 mg. Eight weeks later, all of skin lesions were healed well. With silicone gel sheets and Laser therapies, we gained excellent cosmetic results. In the aesthetic aspect, early recognition of rare variants of limited form of WG, facial chronic ulcerative wounds that are nonresponsive to conservative treatment, is very important as appropriate therapy can prevent facial mutilation.
Cheek
;
Cosmetics
;
Cyclophosphamide
;
Female
;
Granuloma
;
Head
;
Humans
;
Keratoconjunctivitis
;
Kidney
;
Laser Therapy
;
Neck
;
Nose
;
Prednisolone
;
Respiratory System
;
Silicone Gels
;
Skin
;
Ulcer
;
Uveitis
;
Vasculitis
;
Wegener Granulomatosis
8.Donor Site Morbidity after Sural Nerve Harvesting for Peripheral Nerve Reconstruction.
Jung Woo CHANG ; Seung Suk CHOI ; Jang Hyun LEE ; Hee Chang AHN ; Nak Heon KANG
Journal of the Korean Society of Plastic and Reconstructive Surgeons 2011;38(4):421-426
PURPOSE: Although the sural nerve is the most commonly used donor for autologous nerve graft, its morbidity after harvesting is sparsely investigated. The sural nerve being a sensory nerve, complications such as sensory changes in its area and neuroma can be expected. This study was designed to evaluate the donor site morbidity after sural nerve harvesting. METHODS: Among the 13 cases, who underwent sural nerve harvesting between January 2004 and August 2009, 11 patients with proper follow up were included in the study. The collected data included harvested graft length, actual length of the grafted nerve, anesthetic and paresthetic area, presence of Tinel sign and symptomatic neuroma, and scar quality. RESULTS: In 7 patients, no anesthetic area could be detected. Of the patients with a follow up period of more than 2 years, all the patients showed no anesthetic area except two cases who had a very small area of sensory deficit (225 mm2) on the lateral heel area, and large deficit (4,500 mm2) on the lateral foot aspect. The patients with a short follow up period (1~2 m) demonstrated a large anesthetic skin area (6.760 mm2, 12,500 mm2). Only one patient had a Tinel sign. This patient also showed a subcutaneous neuroma, which was visible, but did not complain of discomfort during daily activities. One patient had a hypertrophic scar in the retromalleolar area, whereas the two other scars on the calf were invisible. CONCLUSION: After a period of 2 years the size of anesthetic skin in the lateral retromalleolar area is nearly zero. It is hypothesized that the size of sensory skin deficit may be large immediately after the operation. This area decreases over time so that after 2 years the patient does not feel any discomfort from nerve harvesting.
Cicatrix
;
Cicatrix, Hypertrophic
;
Follow-Up Studies
;
Foot
;
Heel
;
Humans
;
Neuroma
;
Organic Chemicals
;
Peripheral Nerves
;
Skin
;
Sural Nerve
;
Tissue Donors
;
Transplants
9.Clinical Experiences of Facial Asymmetries in Zygomaticomaxillary Complex Bone Fracture Patients.
Nak Heon KANG ; Seung Han SONG ; Sang Mun CHOI ; Joo Hak KIM ; Sang Ha OH
Journal of the Korean Society of Plastic and Reconstructive Surgeons 2011;38(2):161-165
PURPOSE: Zygomaticomaxillary complex(ZMC) fracture is one of the most common facial injuries after facial trauma. As ZMC composes major facial buttress, it is a key element of the facial contour. So, when we treat these fractures, the operator should have a concern with the symmetry to restore normal appearance and function. But sometimes, unfavorable results may occur. The aim of this study is to analyze the unsatisfied midfacial contour after ZMC fractures reduction retrospectively and to point out the notandum. METHODS: 369 patients, treated for fractures of the ZMC were included in the study. After the operation, such as open reduction and internal fixation(ORIF with titanium or absorbable materials), open reduction, and closed reduction, midfacial contour was evaluated with plain films and 3-dimensional computed tomography. And unfavorable asymmetric midfacial contours were correcterd by secondary correction and re-evaluated. Gross photographs were obtained at outpatient clinic. RESULTS: Total of 38 patients had got a facial asymmetry and among of them 24 patients were treated secondary revisional ORIF operations for correction of unfavorable result of after primary reduction. Two of them had received tertiary operations, three patients had got osteotomy more than after one year and six patients had got minor procedures. The etiology of asymmetry were lateral displaced simple fracture of arch(n=2), lateral displaced comminuted fracture of arch(n=6), comminuted arch fracture combined posterior root fracture(n=9), and communited arch and body fracture(n=12), severely contused soft tissue(n=9). After the manipulations outcomes were acceptable. CONCLUSION: To prevent the asymmetry in ZMC fracture reduction, complete analysis of fracture, choice of appropriate operation technique, consider soft tissue, and secure of zygoma position are important. Especially, we should be more careful about communited fracture of zygomatic body and lateral displacement, root fracture of zygomatic arch. Because they are commom causes that make facial asymmetry. To get optimal result, ensure the definite bony reduction.
Dietary Sucrose
;
Displacement (Psychology)
;
Facial Asymmetry
;
Facial Injuries
;
Fractures, Bone
;
Fractures, Comminuted
;
Humans
;
Osteotomy
;
Outpatients
;
Retrospective Studies
;
Titanium
;
Zygoma
10.Comparative Study for Compatibility of Acellular Dermis (SureDerm(TM)) and Synthetic Material(PROCEED(R)) on Abdominal Wall Defect in Rabbit Models.
Nak Heon KANG ; Seung Han SONG ; Dae Young KANG ; Jae Hyoung AHN ; Da Mi CHOI ; Jin Young KIM
Journal of the Korean Society of Plastic and Reconstructive Surgeons 2011;38(2):135-142
PURPOSE: Deficiencies of the abdominal wall can be the a result of infection, surgery, trauma, or primary herniation. For abdominal wall reconstruction, synthetic materials have been shown to provide a better long-term success rate than primary fascial repair. But, synthetic materials cannot elicit angiogenesis or produce growth factor and are therefore plagued by an inability to clear infection. As a result of the inherent drawbacks of synthetic, significant effort has been spent on the identification of new bioprosthetic materials. The aim of our study is to evaluate the effectiveness of a synthetic material(PROCEED(R)) and an ADM(SureDerm(TM)) to repair abdominal wall defects in a rabbit models. METHODS: We measured the tensile strength of the SureDerm(TM) and PROCEED(R) by a Tension meter(Instron 4482). 16 Rabbit models were assigned to this study for abdominal wall reconstruction. Abdominal defect of 8 rabbits were reconstructed by PROCEED(R) and the rest were reconstructed by SureDerm(TM). We assessed gross and histologic examinations for the reconstructed abdominal wall. RESULTS: The tensile strenth of SureDerm(TM) and Gore Tex(R) is 14.64+/-0.51 Mpa, 8.54+/-0.45 Mpa. PROCEED(R) was estimated above the limits of measurement. Inflammatory reaction of PROCEED(R) persisted for 32weeks, but SureDerm(TM) decreased after 16weeks. Vascular ingrowth into the SureDerm(TM) was seen after 32 weeks. The basement membrane of SureDerm(TM) changed into a form of pseudoperitoneum. In PROCEED(R), it seemed like pseudoepithelial lining was made from the fibrosis around the mesh. CONCLUSION: In our study, the SureDerm(TM) not only have less inflammatory reaction and presented more angiogenesis than the PROCEED(R), but also have pseudoperitoneum formation. It is expected that SureDerm(TM) is useful for abdominal wall reconstruction. However, a long-term study of its usage consequences are thought to be needed.
Abdominal Wall
;
Acellular Dermis
;
Basement Membrane
;
Fibrosis
;
Rabbits
;
Tensile Strength

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