1.Extra-articular Triplane Fracuture of the Distal Tibia in Children.
Yeo Hun YUN ; Hoon JEONG ; Yi Kyoung SHIN ; Sung Gu YEO
Journal of the Korean Fracture Society 2005;18(4):459-461
PURPOSE: To demonstrate the effectiveness of the conservative treatment which was introduced to the extraarticular triplane fractures of the distal tibia. MATERIALS AND METHODS: We reviewed radiographs and medical records of eight patients with extraarticular triplane fractures of the tibia. Four patients were treated with closed reduction and internal fixation and the others with closed reduction and plaster. RESULTS: In all patients, the union of fractures was obtained. Although the physes were closed early, there was no angular deformity or leg length discrepancy. CONCLUSION: In case of extraarticular triplane fracture, except for open fracture or failure of closed reduction, conservative treatment yield good result.
Child*
;
Congenital Abnormalities
;
Fractures, Open
;
Humans
;
Leg
;
Medical Records
;
Tibia*
2.Surgical Management of Thoracolumbar Spine Fracture with Pedicle Screws and Inferior Laminar Hooks.
Jin Man WANG ; Kwon Jae ROH ; Yeo Hun YUN ; Young Do KO ; Jong Keon OH ; Hoon JEONG ; Dong Jun KIM
Journal of Korean Society of Spine Surgery 1998;5(1):62-69
STUDY DESIGN: Clinical and radiographic results of spine fracutre treated with pedicle screws and hooks were reviewed. OBJECTIVES: Evaluate the efficacy of tile pedicle screw and hook for thoracolumar bursting fracture. SUMMARY OF LITERATURE REVIEW: Despite of the mechanical advantage of the pedicle screw, the metal failure in short segment fusion has been reported. A biomechanical study showed additional laminar hook increased rotational strength. MATERIALS AND METHODS: Between 1994 and 1996, seventeen patients who had a Denis type B bursting fracture of the thoracolumbar spine were treated by posterior instrumentation with pedicle screws and laminar hooks and auterior interbody fusion after partial corpectomy. They have been followed for an average of 13.4 months. RESULTS: At last follow-up, radiographs showed successful fusion of the injured spinal segment in all patient. The subsidence of grafts which were used In anterior interbody fusion was an average of 0.76mm. There was a loss of 2.6 degrees on average in the correction of the kyphosis. No patients had screw breakage or loosening. CONCLUSIONS: We concluded that posterior fixation with screws and hooks, anterior decompression by partial corpectomy, and strut-grafting in patient who had a Denis type B bursting frafture of the thoracolumbar spine yielded good radiographic and functional results.
Decompression
;
Follow-Up Studies
;
Humans
;
Kyphosis
;
Spine*
;
Transplants
3.A Case of Incomplete Femoral Nerve Neuropathy after Total Abdominal Hystrectomy.
Sae Min CHUNG ; Yun Jin MOON ; Seung Geun PARK ; Hye Young PARK ; Ji Yeon CHO ; Yeo Hong YUN ; Yong Hun CHEE
Korean Journal of Obstetrics and Gynecology 2003;46(7):1466-1468
Total abdominal hystrectomy is the most common surgery of Gynecology. It's complication are taken very important. Although neuropathy, especially femoral nerve injury, is rare, recently we have experienced a case of femoral neuropathy after total abdominal hystrectomy. We present this case with a brief review of literature.
Femoral Nerve*
;
Femoral Neuropathy
;
Gynecology
4.Electrophysiological Studies with Inching Method in Carpal Tunnel Syndrome.
Sung Min KIM ; Ki Han KWON ; Byung Chul LEE ; Sang Yun KIM ; Jae Chun BAE ; Yeo Hun YUN
Journal of the Korean Neurological Association 1995;13(4):933-940
The nerve conduction study with the inching method has been performed to characterize the nature of lesion (focal of diffuse) within the carpal tunnel and to increase the diagnostic sensibility of the carpal tunnel syndrome (CTS). The sensory nerve conduction velocity of finger-to-palm (F-P) segment of median never or the ratio of sensory nerve conduction velocity of palm-to-wrist (PW) segment to F-P segment of the median nerve (P-W/F-P ratio) was also measured to differentiate the CTS from the early peripheral polyneuropathy, which may only involve the median nerve. Conduction times of the sensory median nerve between the midpalm and the distal forearm in 2cm increments were measured orthodromically in controls (n=32) and CTS patients. The P-W/F-P ratio in control, CTS without diabetes mellitus (DM) (n=23), CTS with DM (n=9), and diabetic peripheral polyneuropathy (DP) groups was compared. The criteria for focal lesion within the carpal tunnel were defined as follows 1) If the maximal conduction time is located at 4-2cm segment distal(designated as '-') to distal wrist crease, it must be prolonged more than 4 times that of the adjoining distal segment or 6 times that of adjoining proximal segment. 2) If the maximal conduction time is located at -6--4cm segment, it must be beprolonged more than 4 times that of the adjoining proximal segment. According to above criteria, the incidened of focal lesion within the carpal tunnel was 84.4%(27/32) and the most common segment of focal lesion was -4--2cm segment(85.2%, 23/27). The P-W/F-P ratio was more decreased in CTS without DM (0. 55 + 0. 11) and CTS with DM(O.68+0.07) groups than control(0382+0.09) and DP(O.81+0.09) groups(P<0.01). In CTS groups, it was more decreased in CTS without DM group than CTS with DM group(p<0.05). So the measurement of sensory nerve conduction velocity of F-P segment of median nerve or the P-W/F-P ratio is helpful not only to evalucate the early distal involvement of peripheral neuropathy but also to establish the subclinical involvement of the segment distal to transverse carpal ligament in CTS with DM group.
Carpal Tunnel Syndrome*
;
Diabetes Mellitus
;
Forearm
;
Humans
;
Ligaments
;
Median Nerve
;
Neural Conduction
;
Peripheral Nervous System Diseases
;
Polyneuropathies
;
Wrist
5.A Case of Management of maternal Vegetative State during Pregnancy.
Ji Yeon CHO ; Yeo Hong YUN ; Sae Min CHUNG ; Sang Yong SEO ; Yong Hun CHEE
Korean Journal of Obstetrics and Gynecology 2001;44(2):393-395
In the management of the traumatized gravid and her fetus, diagnostic tests and therapy should be directed primarily at the care of the mother and should not be delayed or compromised because of the pregnancy. Because many factors can damage when the mother is unconscious, fetal well-being should be assessed by serial biophysical profile scoring. If the mother's condition is stable as in the chronic vegetative state, elective delivery might best be performed at a gestational age of 32 to 34 weeks.
Diagnostic Tests, Routine
;
Fetus
;
Gestational Age
;
Humans
;
Mothers
;
Persistent Vegetative State*
;
Pregnancy*
6.Yeast Associated with the Ambrosia Beetle, Platypus koryoensis, the Pest of Oak Trees in Korea.
Yeo Hong YUN ; Dong Yeon SUH ; Hun Dal YOO ; Man Hwan OH ; Seong Hwan KIM
Mycobiology 2015;43(4):458-466
Oak tree death caused by symbiosis of an ambrosia beetle, Platypus koryoensis, and an ophiostomatoid filamentous fungus, Raffaelea quercus-mongolicae, has been a nationwide problem in Korea since 2004. In this study, we surveyed the yeast species associated with P. koryoensis to better understand the diversity of fungal associates of the beetle pest. In 2009, a total of 195 yeast isolates were sampled from larvae and adult beetles (female and male) of P. koryoensis in Cheonan, Goyang, and Paju; 8 species were identified by based on their morphological, biochemical and molecular analyses. Meyerozyma guilliermondii and Candida kashinagacola were found to be the two dominant species. Among the 8 species, Candida homilentoma was a newly recorded yeast species in Korea, and thus, its mycological characteristics were described. The P. koryoensis symbiont R. quercusmongolicae did not show extracelluar CM-cellulase, xylanase and avicelase activity that are responsible for degradation of wood structure; however, C. kashinagacola and M. guilliermondii did show the three extracellular enzymatic activities. Extracelluar CM-cellulase activity was also found in Ambrosiozyma sp., C. homilentoma, C. kashinagacola, and Candida sp. Extracelluar pectinase activity was detected in Ambrosiozyma sp., C. homilentoma, Candida sp., and M. guilliermondii. All the 8 yeast species displayed compatible relationships with R. quercus-mongolicae when they were co-cultivated on yeast extract-malt extract plates. Overall, our results demonstrated that P. koryoensis carries the yeast species as a symbiotic fungal associate. This is first report of yeast diversity associated with P. koryoensis.
Adult
;
Ambrosia*
;
Beetles*
;
Candida
;
Cellulases
;
Chungcheongnam-do
;
Fungi
;
Humans
;
Korea*
;
Larva
;
Platypus*
;
Polygalacturonase
;
Quercus*
;
Symbiosis
;
Wood
;
Yeasts*
7.Molds Isolated from Pet Dogs.
Kye Seung JANG ; Yeo Hong YUN ; Hun Dal YOO ; Seong Hwan KIM
Mycobiology 2007;35(2):100-102
Pet dogs have been considered to be involved in the contamination of indoor air by serving as a source of providing molds at houses. Currently, information on the molds originated from pet dogs is rarely available in Korea. The present study was carried out to obtain basic information on the fungi present on pet dogs. For this, fungal isolation was performed to the skin and hairs of 70 pet dogs at different houses and veterinary hospitals. A total of 44 fungal isolates were obtained from skin (27 isolates) and hairs (17 isolates) of the dogs investigated. Based on the observation of microstructures and colony morphology, and the ITS rDNA sequence analysis, the fungal isolates were identified at the level of genus. The identified isolates belong to the genera of Alternaria, Aspergillus, Beauveria, Chrysosporium, Cladosporium, Penicillium, Scopulariopsis, and Trichoderma. Among these genera, Aspergillus (25%), Cladosporium (23%) and Penicillium (20.5%) were 3 major genera. 63% of the 44 isolates showed color changes on dermatophyte test medium (DTM). When we tested the growth ability of 44 isolates at 37degrees C, 45% of the isolates were able to grow. These results show that pet dogs could carry fungi having a potentiality of affecting on human health.
Alternaria
;
Animals
;
Arthrodermataceae
;
Aspergillus
;
Beauveria
;
Chrysosporium
;
Cladosporium
;
DNA, Ribosomal
;
Dogs*
;
Fungi*
;
Hair
;
Hospitals, Animal
;
Humans
;
Korea
;
Penicillium
;
Scopulariopsis
;
Sequence Analysis
;
Skin
;
Trichoderma
8.Inhibitory effects of ginseng saponins on c-fos mRNA expression and the proliferation of rat aortic vascular smooth muscle cells stimulated by angiotensin II.
Woong CHOI ; Jin Young JUNG ; Hun Sik KIM ; Yeo Pyo YUN ; Jong Dae PARK ; Hee Yul AHN
The Korean Journal of Physiology and Pharmacology 1998;2(2):201-207
To evaluate the possibility that the ginseng saponins could be developed as an anti-arteriosclerotic agent, we examined the inhibitory effects of ginseng saponins (total saponin(TS), panaxatriol(PT), panaxadiol(PD)) on the expression of c-fos mRNA and the proliferation of cultured rat aortic vascular smooth muscle cells (VSMCs) stimulated by angiotensin II (Ang II). TS and PT (1.0 mg/ml) suppressed c-fos mRNA induction in VSMCs stimulated by 10-5 M Ang II. The order of inhibitory potency was PT>TS. Ginseng saponins (0.01~1.0 mg/ml) inhibited the proliferation of VSMCs stimulated by Ang II in a concentration dependent manner, the inhibitory potency was TS> PT> PD at 0.1~1.0 mg/ml. These results suggest that ginseng saponins may suppress Ang II-stimulated proliferation of aortic VSMCs which can be seen in atherosclerosis, hypertension and restenosis.
Angiotensin II*
;
Angiotensins*
;
Animals
;
Atherosclerosis
;
Hypertension
;
Muscle, Smooth, Vascular*
;
Panax*
;
Rats*
;
RNA, Messenger*
;
Saponins*
9.Incidental Carcinoid of Appendix in Borderline Mucinous Ovarian Tumor.
Yun Jin MOON ; Sae Min CHUNG ; Seung Geun PARK ; Min Jeong KIM ; So Ya PAIK ; Hye Young PARK ; Jun Seong KO ; Yeo Hong YUN ; Yong Hun CHEE
Korean Journal of Obstetrics and Gynecology 2004;47(3):551-554
A case with carcinoid tumor of the appendix was encountered incidentally during an elective abdominal surgery for borderline mucinous ovarian tumor in a 16-year old female. Carcinoid tumor of appendix is the most common neoplasm of the gastrointestinal tract in childhood and adolesence. They are usually regarded as a benign neoplasm and an uncommon source of metastasis and recurrence. We report this case with reference to the value of grosss examination of the appendix and incidental appendectomy during gynecologic abdominal operations.
Adolescent
;
Appendectomy
;
Appendix*
;
Carcinoid Tumor*
;
Female
;
Gastrointestinal Tract
;
Humans
;
Mucins*
;
Neoplasm Metastasis
;
Recurrence
10.A Case of Lipoleiomyoma.
Min Jeong KIM ; Sae Min CHUNG ; Yun Jin MOON ; Seung Geun PARK ; Min Woo KIM ; Yeo Kyu DONG ; Soya PAIK ; Yong Hun CHEE
Korean Journal of Obstetrics and Gynecology 2004;47(6):1236-1240
Uterine lipoleiomyoma are rare benign tumors consisting of smooth muscle and mature adipose tissue. Because of their rarity, fat content, and variable gross morphology, they may be mistaken on radiodiagnosis for the much more common benign cystic ovarian teratoma. The key to differentiate these lesions is the identification of the organ of origin. A mass that arises from the uterus is most likely a lipomatous uterine tumors. Because malignant degeneration occurs in 1-2% of benign cystic ovarian teratomas, their differentiation can be clinically significant. While these tumors are treated by surgical excision, asymptomatic lipomatous uterine tumors and benign pelvic lipomas may require no therapy. The fatty nature of the lipoleiomyoma was demonstrated with standard spin-echo Magnetic resonance imaging (MRI) and further supported using fat- suprressed inversion recovery MRI. MRI also clearly depicted the intrauterine location of the tumor. We report a case in which a preoperative diagnosis of a uterine lipoleiomyoma was made with MRI and fat suppressed MRI.
Adipose Tissue
;
Diagnosis
;
Lipoma
;
Magnetic Resonance Imaging
;
Muscle, Smooth
;
Teratoma
;
Uterus