1.Use of Miniplate for Severe Comminuted Metadiaphyseal Fractures of the Distal Radius
Jong Ryoon BAEK ; Yong Cheol YOON ; Seung Hyun BAEK
Journal of the Korean Fracture Society 2019;32(4):204-210
PURPOSE: This study investigated the clinical and radiological outcomes of patients undergoing provisional fixation in conjunction with locking plate fixation. Miniplates were used as the reduction plates for the surgical treatment of severe comminuted metadiaphyseal fractures with an intra-articular fracture of the distal radius. MATERIALS AND METHODS: The radial length, radial inclination, volar tilt, and radial intra-articular step-off were measured preoperatively, postoperatively, and at one year after surgery in 12 patients (eight males, four females, mean age 55.4 years old). The patients underwent volar locking plate fixation with miniplate as a reduction plate for severe comminuted metadiaphyseal fractures with an intra-articular fracture of the distal radius. Clinical evaluations were conducted using the modified Mayo wrist score (MMWS). RESULTS: Bone union was achieved in all cases. The mean MMWS was 81.8 points, including two excellent, three good, and seven fair cases. Radiological improvements were observed in the average radial length (preoperative, 6.4 mm; postoperative, 11.8 mm), average radial inclination (10.2° to 22.4°), average volar tilt (−4.5° to 10.6°), and average radial intra-articular step-off (4.8–0.8 mm) (all, p<0.05). Radiographic measurements obtained immediately after surgery and at the final follow-up revealed insignificant decreases in radial length (0.6 mm), radial inclination (0.4°), and volar tilt (0.9°) (all, p>0.05). CONCLUSION: Miniplate fixation can be an effective treatment option as a reduction plate for the treatment of distal radial fractures, which is challenging to reduce and maintain due to severely comminuted metadiaphysis fractures with the intra-articular fracture.
Female
;
Follow-Up Studies
;
Fractures, Comminuted
;
Humans
;
Intra-Articular Fractures
;
Male
;
Radius
;
Wrist
2.Disappearing Atypical Lentiginous Pigmentation of the Desmoplastic Malignant Melanoma.
Sook Hee LIM ; Seung Cheol BAEK ; Dae Gyoo BYUN ; Dong HOUH
Annals of Dermatology 2001;13(1):44-47
A 38-year-old man presented with a black pigmented patch overlying his upper lip, a part of the gingiva and the hard palate. An intradermal tumor mass was palpated at the central portion of the pigmented patch of the upper lip. Diphenylcyclopropenone (DPCP) is a potent contact sensitizer that could stimulate non-specific immunity. We report a case of desmoplastic malignant melanoma (DMM) in which an atypical lentiginous pigmentation disappeared with topical DPCP immunotherapy and the dermal tumor mass was removed by a surgical wedge-shaped excision. Though an atypical lentiginous pigmentation of DMM sometimes undergoes extensive spontaneous regression, in our case it could be attributed to the therapeutic effect of topical DPCP immunotherapy rather than a spontaneous regression.
Adult
;
Gingiva
;
Humans
;
Immunity, Innate
;
Immunotherapy
;
Lip
;
Melanoma*
;
Palate, Hard
;
Pigmentation*
3.A Case of Verrucous Hemangioma.
Oh Chan KWON ; Sung Wook KIM ; Seung Cheol BAEK ; Baik Kee CHO
Annals of Dermatology 1998;10(2):143-146
We report a case of a 6-month-old female who had had verrucous hemangioma since birth. The lesions were dark red, verrucous surfaced, hyperkeratotic papules on the right sole. A histopathological examination showed hyperkeratosis, papillomatosis, irregular acanthosis, lobular proliferation and dilatation of blood vessels in the deep dermis with a gap devoid of vessel proliferation in the mid dermis.
Blood Vessels
;
Dermis
;
Dilatation
;
Female
;
Hemangioma*
;
Humans
;
Infant
;
Papilloma
;
Parturition
4.Neonatal Lupus Erythematosus.
Ho Pyo LEE ; Hye Nam LEE ; Dong HOUH ; Dae Gyoo BYUN ; Seung Cheol BAEK
Annals of Dermatology 1998;10(3):185-189
Neonatal lupus erytematosus is a distinct subset of lupus erythematosus. It is characterized by cutaneous findings exhibiting the morphology of subacute cutaneous lupus erythematosus, congenital heart block, and anti-Ro/SSA and/or anti-La/SSB autoantibodies which result from the transplacental passage of maternal autoantibodies. We report a case of a 12-week-old female infant who presented with characteristic clinical and histopathological features of cutaneous neonatal lupus erythematosus but without evidence of congenital heart block. Initial serological studies reveled the presence of anti-La/SSB anti-bodies and antinuclear antibodies. 5 months later, follow-up serology was negative in accordance with a clinical remission.
Antibodies, Antinuclear
;
Autoantibodies
;
Female
;
Follow-Up Studies
;
Heart Block
;
Humans
;
Infant
;
Lupus Erythematosus, Cutaneous
5.A Case of Fordyce's Disease with Wide Distribution.
Kyung Ok CHAE ; Seung Cheol BAEK ; Dae Gyoo BYUN ; Hyun Jeong PARK
Annals of Dermatology 2001;13(2):123-125
Fordyce's disease is a condition known as ectopically located sebaceous glands on the vermilion borders of the lips and oral mucosa. Clinically, it is groups of minute, yellowish, globoid macules and papules. Histologically, it is characterized by sebaceous glands not associated with hair follicles. We report on a 40-year-old man with Fordyce's disease showing particularly wide distribution on the buccal mucosa and upper lip.
Adult
;
Hair Follicle
;
Humans
;
Lip
;
Mouth Mucosa
;
Sebaceous Glands
6.A Case of Trichilemmal Horn.
Sook Hee LIM ; Ji Hyun HA ; Hyun Jeong PARK ; Seung Cheol BAEK ; Dae Gyoo BYUN
Annals of Dermatology 2001;13(2):110-112
Trichilemmal horn(trichilemmal keratosis) is a rare keratinizing tumor that resembles a cutaneous horn. Histologically, it is characterized by an abrupt maturation of keratinocytes into lamellar keratin without the formation of a granular layer. We describe a case of a trichilemmal horn on the right cheek of a 78-year-old woman.
Aged
;
Animals
;
Cheek
;
Female
;
Horns*
;
Humans
;
Keratinocytes
7.Diagnosis of Causative Fungi of Onychomycosis Using Polymerase Chain Reaction and Restriction Enzyme Analysis.
Hee Jae CHAE ; Seung Cheol BAEK ; Baik Kee CHO
Korean Journal of Medical Mycology 1999;4(1):6-14
BACKGROUND: Onychomycosis has become one of the common fungal infection. However, highly reliable and sensitive methods of detecting and identifying causative fungi of onychomycosis are not established yet. Polymerase chain reaction (PCR) analysis of clinical specimens including blood, sputum, urine, and cerebrospinal fluid collected from patient systemically infected fungus is known as a sensitive diagnostic method. But it has been questionable whether PCR analysis is also applicable to onychomycosis. OBJECTIVE: The purpose of this study was to develop a DNA-based diagnostic method to improve the sensitivity and specificity of detection and identification of pathogenic fungi of onychomycosis. METHODS: To detect the fungi in the nail, PCR was performed by using 4 sets of primer (TR1 & TR2, NS5 & NS6, B2F & B4R and CA1 & CA2) designed in conserved sequences of the small ribosomal subunit (185-rRNA) genes and restriction enzyme analysis of amplified product by Hae III was done to identify species. Nail specimens were obtained from 19 cases of onychomycosis confirm by fungus culture. RESULTS: 1. Preparation of nail powder, which is necessary for removal of keratin, and composition of lysis buffer with guanidinium thiocyanate, Tris-HCl, and beta -mercaptoethanol are the most proper modalities for isolation of fungal DNA from fungus-infesting nails. 2. Specific fragments of the 18S-rRNA gene of fungi, 581 bp, 308 bp, 688 bp and 1106 bp were amplified respectively. From sequences of 18S-rRNA gene of fungi by universal primers, dermatophytes (Trichophyton rubrum, Trichophyton mentagrophytes) and yeast (Candida albicans) yielded identical products. 3. Using Hae III endonuclease, digested patterns of fragment of Trichophyton rubrum and Candida albicans resulted in different pattern. CONCLUSION: This method released enough DNA from fungus-infected nails to result in proper amplification and it can be possible to differentiate dermatophytes, yeasts, and molds using Hae III endonuclease. The present study is the first one to demonstrate the feasibility of this molecular biologic approach to identify fungi in the infected nail. Therefore, precise detection and identification of the causative fungi would be of help in investigating distribution of the causative fungi of onychomycosis as well as appropriate treatment of the disease.
Arthrodermataceae
;
Candida albicans
;
Cerebrospinal Fluid
;
Conserved Sequence
;
Diagnosis*
;
DNA
;
DNA, Fungal
;
Fungi*
;
Guanidine
;
Humans
;
Onychomycosis*
;
Polymerase Chain Reaction*
;
Restriction Mapping*
;
Ribosome Subunits, Small
;
Sensitivity and Specificity
;
Sputum
;
Trichophyton
;
Yeasts
8.Five Cases of Shiitake Dermatitis.
Ji Ho LEE ; Tae Yoon KIM ; Bo Hyung KIM ; Seung Cheol BAEK ; Dong HOUH ; Dae Gyoo BYUN
Korean Journal of Dermatology 1998;36(3):477-481
Shiitake (Lentinus edodes) is a kind of mushroom which is cooked and eaten as a food in Chinese, Japanese and Korean meals. It is nowadays the second most commonly produced edible mushroom in the world. In 1985, a case characterized by itchy skin eruptions after the ingestion of raw shiitake mushrooms was reported and was termed as toxicodermia. Here we report five cases of shiitake dermatitis which developed after ingestion of raw or cooked shiitake mushrooms. All patients complained of severe itching and showed linear grouped erythematous papules after scratching(Kobner phenomenon). To our knowledge, this is the first report of shiitake dermatitis in the Korean literature.
Agaricales
;
Asian Continental Ancestry Group
;
Dermatitis*
;
Eating
;
Humans
;
Meals
;
Pruritus
;
Shiitake Mushrooms
;
Skin
9.Hirsutoid Papillomas of Vulvae.
Hye Nam LEE ; Sook Hee LIM ; Seung Cheol BAEK ; Dong HOUH ; Dae Gyoo BYUN ; Baik Kee CHO
Annals of Dermatology 2000;12(1):38-40
Hirsutoid papillomas of vulvae present as smooth or filiform papules located on the inner surfaces of the labia minora. This disease is usually considered as anatomical variants of the vestibular mucosa. Differentiation from condyloma acuminata is important to avoid unnecessary treatment. Herein we report a case of hirsutoid papillomas of vulvae in a 21-year-old female who complained of pruritic papules on the vulva of one year's duration. Papules were located on the inner surfaces of the left labia minora and vestible of the vulva. Clinically, they were quite similar to condyloma acuminata. Histologically, however, the epithelium was devoid of features of human papillomavirus(HPV) infections such as koilocytosis, double nucleation, and dyskeratosis.
Epithelium
;
Female
;
Humans
;
Mucous Membrane
;
Papilloma*
;
Vulva*
;
Young Adult
10.Analysis of Trabecular Bone Strength using Finite Element Analysis
Myong Hyun BAEK ; Kwang Kyoun KIM ; Seung yun HAN ; Cheol Mog HWANG
Journal of Korean Society of Osteoporosis 2011;9(2):180-185
OBJECTIVES: The purpose of this study is to develop a method of evaluation based on finite element analysis (FEA) using micro-CT images for the measurement of trabecular bone strength. METHODS: The primary compressive trabeculae were obtained from the human femoral head of three cadavers (21 year old male (M/21), 51 year old male (M/51), 51 year old female (F/51). All bone specimens were scanned using micro-CT at 24.9microm of spatial resolution under 70 kV's voltage and current of 141microA. The percent bone volume was calculated from the CTAn (SKYSCAN, Belgium) software, it's represented the bone mineral density (BMD). After scanning, the finite element model was reconstructed based on micro-CT images. All models were applied to be linear elastic, isotropic, and uniform with a tissue modulus of 5.17 GPa and a tissue Poisson's ratio of 0.3. RESULTS: The percent bone volume(%) were 31.819 (+/-0.648), 21.513 (+/-2.489), 20.280 (+/-1.891) and Bone strength (MPa) were 187.741 (+/-13.006), 61.585 (+/-11.094), 61.266 (+/-16.744) in M/20, M/51 and F/51. The trabecular bone strength of the primary compressive trabeculae in M/20 was 3 times more than the trabecular bone strength in M/51 and F/51. The percent bone volume in M/20 was 148% and 157% higher than the percent bone volume in M/51 and F/51. CONCLUSIONS: The finite element analysis is more sensitive than the percent bone volume in reflecting the morphometry index of primary compressive trabeculae. The high resolution FEA reconstructed from high resolution MRI or high resolution CT may improve the evaluation of trabecular bone strength in the medical field.
Bone Density
;
Cadaver
;
Female
;
Finite Element Analysis
;
Head
;
Humans
;
Male