1.The Relationship between the Fracutures of the Hip and the Bone Mineral Density over Fifty years.
Jun Seop JAHNG ; Ju Hyung YOO ; Joon Seok SOHN
The Journal of the Korean Orthopaedic Association 1997;32(1):46-52
Osteoporosis has been described as the most common disease in the old age group. As the bone mineral density decreases, the skeleton becomes more prone to fracture. Hip fractures occur late in life following substantial reduction in skeletal mass. So the incidence of hip fracture is increasing due to prolongation of average life span. The bone density of femoral neck, Ward triangle, and trochanteric region were measured by dual energy x-ray absorptiometry (DEXA) in 15 patients with femoral neck fractures and in 58 patients with intertrochanteric fractures to evaluate the relationship between bone mineral density (BMD) value and fracture type. The results were as follows 1. In femoral neck fracture group, the mean BMD value was 0.59+/-0.02 g/cm2 in femoral neck, 0.38+/-0.08 g/cm2 in Ward triangle and 0.48+/-0.09 g/cm2 in trochanteric region. In intertrochanteric fracture group, the mean BMD value was 0.57+/-0.09 g/cm2 in femoral neck, 0.39+/-0.10 g/cm2 in Ward triangle, and 0.47+/-0.13 g/cm2 in trochanteric region. 2. In femoral neck fracture group, the fracture threshold value was 0.75 g/cm 2 in femoral neck, 0.60 g/cm2 in Ward triangle and 0.67 g/cm2 in trochanteric region. In intertrochanteric fracture group, the fracture threshold value was 0.63 g/cm2 in femoral neck, 0.51 g/cm2 in Ward triangle, and 0.57 g/cm2 in trochanteric region. In conclusion, there was no statistical relationship in BMD value between neck fracture and intertrochanter fracture group, and no statistical relationship between BMD value and each fracture type in femoral neck and intertrochanter fracture. The type of hip fracture may be related to the degree of trauma rather than the value of the BMD.
Absorptiometry, Photon
;
Bone Density*
;
Femoral Neck Fractures
;
Femur
;
Femur Neck
;
Hip Fractures
;
Hip*
;
Humans
;
Incidence
;
Neck
;
Osteoporosis
;
Skeleton
2.The Redislocation after Open Reduction and Salter's Innominate Osteotomy in Congenital Dislocation of the Hip.
Byeong Mun PARK ; Ju Hyung YOO ; Dong Joon SHIM
The Journal of the Korean Orthopaedic Association 1997;32(3):763-767
The complications of Salter's innominate osteotomy in the treatment of congenital dislocation of the hip were avascular necrosis of the femoral head, hematoma, rotation of distal pelvic fragment, infection, fracture of femoral shaft and redislocation. Among them the causes of redislocation were technical failure, immobilization failure and absorption the bone graft, etc. We experienced a case of redislocation after open reduction and Salter s innominate osteotomy in congenital dislocation of the hip which was induced by a foreign body reaction to the suture material.
Absorption
;
Dislocations*
;
Foreign-Body Reaction
;
Head
;
Hematoma
;
Hip*
;
Immobilization
;
Necrosis
;
Osteotomy*
;
Sutures
;
Transplants
3.Measurement of Angle Kappa Using Ultrasound Biomicroscopy and Corneal Topography.
Joon Hyung YEO ; Nam Ju MOON ; Jeong Kyu LEE
Korean Journal of Ophthalmology 2017;31(3):257-262
PURPOSE: To introduce a new convenient and accurate method to measure the angle kappa using ultrasound biomicroscopy (UBM) and corneal topography. METHODS: Data from 42 eyes (13 males and 29 females) were analyzed in this study. The angle kappa was measured using Orbscan II and calculated with UBM and corneal topography. The angle kappa of the dominant eye was compared with measurements by Orbscan II. RESULTS: The mean patient age was 36.4 ± 13.8 years. The average angle kappa measured by Orbscan II was 3.98°± 1.12°, while the average angle kappa calculated with UBM and corneal topography was 3.19°± 1.15°. The difference in angle kappa measured by the two methods was statistically significant (p < 0.001). The two methods showed good reliability (intraclass correlation coefficient, 0.671; p < 0.001). Bland-Altman plots were used to demonstrate the agreement between the two methods. CONCLUSIONS: We designed a new method using UBM and corneal topography to calculate the angle kappa. This method is convenient to use and allows for measurement of the angle kappa without an expensive device.
Corneal Topography*
;
Humans
;
Male
;
Methods
;
Microscopy, Acoustic*
;
Ultrasonography*
4.Comparison of the Clinical Diagnosis of Diabetic Macular Edema with Diagnosis by Retinal Thickness Analyzer.
Hyung Ju PARK ; Sun Young SHIN ; Joon Hyun KIM
Journal of the Korean Ophthalmological Society 2005;46(8):1299-1304
PURPOSE: To evaluate the correlation between diabetic macular edema diagnosed with stereoscopic slit-lamp and retinal thickness analyzer (RTA). METHODS: Diabetic macular edema diagnosed with stereoscopic slit-lamp was compared to indices of RTA in 50 eyes of 32 persons which were diagnosed clinically with diabetic retinopathy. RESULTS: From stereoscopic slit-lamp results, diabetic macular edema was present in 39 of 50 eyes, and absent in 11 of 50. Foveal average thickness out of the RTA indices was 209.7+/-58.5 micrometer from observing diabetic macular edema clinically and 199.4+/-47.3 micrometer from not observing diabetic macular edema clinically. Statistically significant differences were found in average foveal thickness between the 2 groups (p=0.013). CONCLUSIONS: RTA appears to serve as a useful and sensitive tool for the diagnosis of diabetic macular edema.
Diabetic Retinopathy
;
Diagnosis*
;
Humans
;
Macular Edema*
;
Retinaldehyde*
5.Ossifications of the Ligamentum Flavum and the Posterior Longitudinal Ligament of the Lumbar Spine.
Seung Rim PARK ; Hyoung Soo KIM ; Joon Soon KANG ; Woo Hyeong LEE ; Joo Hyung LEE ; Ju Sik PARK
Journal of Korean Society of Spine Surgery 1997;4(2):350-356
Ossifications of the ligamentum flavum(OLF) and the posterior longitudinal ligament(OPLL) are uncommon clinical entities as a cause of the progressive compression myelopathy or radiculopathy. Although there are considerable literatures concerning OPLL or OLF in cervical and thoracic spine, there are only a few references about OPLL or OLF in the lumbar spine. OLF and OPLL have been reported that they may lead to severe complication only with a minor trauma or even without trauma, such as paraplegia. The authors have experienced 2 cases of OLF accompanied by OPLL In the lumbar spine, who were treated with decompressive laminectomy and excision of ossified ligaments. For its rarity of OLF and OPLL in the lumbar region, we report here with review of literature.
Laminectomy
;
Ligaments
;
Ligamentum Flavum*
;
Longitudinal Ligaments*
;
Lumbosacral Region
;
Paraplegia
;
Radiculopathy
;
Spinal Cord Diseases
;
Spine*
6.Gastric Perforation Associated with Vascular Invasive Mucormycosis in a Renal Transplant Recipient.
Tae Yon SUNG ; Yu Seun KIM ; Hyung Joon AHN ; Yoon Hee LEE ; Man Ki JU ; Woo Jin HYUNG
Journal of the Korean Surgical Society 2006;71(5):376-378
The clinicopathological manifestations of gastric mucormycosis range from colonization of ulcer disease to infiltration of tissue with or without vascular involvement. The prognosis of this disease is extremely poor when blood vessel invasion is observed. Herein, we report on a rare case of ischemic gastric perforation that was associated with vascular invasive mucormycosis in a renal recipients 7 years after transplantation.
Blood Vessels
;
Colon
;
Kidney Transplantation
;
Mucormycosis*
;
Prognosis
;
Transplantation*
;
Ulcer
7.Splenectomy affects the balance between hepatic growth factor and transforming growth factor-beta and its effect on liver regeneration is dependent on the amount of liver resection in rats.
Joohyun KIM ; Chang Ju KIM ; Il Gyu KO ; Sun Hyung JOO ; Hyung Joon AHN
Journal of the Korean Surgical Society 2012;82(4):238-245
PURPOSE: Small-for-size syndrome (SFSS) is a major problem in liver surgery, and splenectomy has been used to prevent SFSS. However, it is unknown whether splenectomy has the same effect on liver regeneration in both standard and marginal hepatectomy. The aim of this study is to see a difference in effect of splenectomy on liver regeneration according to the amount of liver resection. METHODS: Thirty male Sprague-Dawley rats (220 to 260 g) were divided into the following five groups: control (n = 6), 70% hepatectomy (n = 6), 70% hepatectomy with splenectomy (n = 6), 90% hepatectomy (n = 6), and 90% hepatectomy with splenectomy (n = 6). The animals were euthanized 24 hours after surgery and liver specimens were obtained. To assess liver regeneration, we performed immunohistochemistry of liver tissue using 5-bromo-2-deoxyuridine (BrdU) labeling and Western blot analysis of hepatic growth factor (HGF) and transforming growth factor-beta (TGF-beta) in the liver tissue. RESULTS: The splenectomized subgroup had a higher BrdU-positive cell count in the 90% hepatectomy group, but not in the 70% hepatectomy group (P < 0.001). Splenectomy significantly decreased TGF-beta expression (P = 0.005) and increased the HGF to TGF-beta ratio (P = 0.002) in the 90% hepatectomy group, but not in the 70% hepatectomy group. CONCLUSION: The positive effect of splenectomy on liver regeneration was greater in the group with the larger liver resection. This phenomenon may be related to the relative balance between HGF and TGF-beta in the liver.
Animals
;
Blotting, Western
;
Cell Count
;
Hepatectomy
;
Humans
;
Immunohistochemistry
;
Liver
;
Liver Regeneration
;
Male
;
Rats
;
Rats, Sprague-Dawley
;
Splenectomy
;
Transforming Growth Factor beta
8.Isolation of Apodemus peninsulae-borne Hantavirus and Cimparison of Molecular Biological Characteristics.
Ki Joon SONG ; Hyung Seon YUN ; Eun Young KHO ; Ki Mo CHUNG ; Kwang Sook PARK ; Yong Ju LEE ; Jin Won SONG ; Luck Ju BAEK
Journal of the Korean Society of Virology 2000;30(1):19-28
Two distinct hantaviruses have been isolated from Apodemus agrarius in 1976 and Rattus norvegicus in 1980 in Korea. Since our serosurveys conducted in 1994, a genetically distinct hantavirus from Apodemus peninsulae has been investigated. To isolate hantavirus from A. peninsulae captured in Korea, the lung homogenate of seropositive A. peninsulae inoculted Vero E6 cells. Viral antigen was detected in a progressively higher percentage of cells with subsequent passage after 80 days postinoculation. The new isolate from seropositive Apodemus peninsulae was designated Suchong virus after Suchong valley located in northeastern region of South Korea. Comparing with hantaan virus 76-118 strain, Suchong virus-1, 2, 3 and 4 showed the similarity of 71.0~91.8% at nucleotide and 90.9~94.8% at amino acid sequences in 231 nucleotides region of M segment, and the similarity of 75.1~81.0% at nucleotide and 97.5~100% at amino acid sequences in 237 nucleotides of S segment.
Amino Acid Sequence
;
Animals
;
Hantaan virus
;
Hantavirus*
;
Korea
;
Lung
;
Murinae*
;
Nucleotides
;
Population Characteristics*
;
Rats
9.Data analysis for improving population management in animal shelters in Seoul.
Yoon Ju CHO ; Young Ah LEE ; Bo Ram HWANG ; Hyung Joon KIM ; Jin Soo HAN
Korean Journal of Veterinary Research 2015;55(2):125-131
A total of 11,395 animals were impounded in shelters in Seoul in 2013. The Animal Protection Division of the Seoul metropolitan government has annual contracts with local veterinary associations as well as Korean animal rescue and management organizations for providing shelter to animals, and collects monthly statistics from these groups. In 2013, the collected intake and outcome data for 25 districts were reviewed to analyze shelter capacity in terms of housing capacity (monthly daily average intake, required holding capacity, and adoption-driven capacity), staff capacity (staff hours required for daily care), and live release rate. Seasonal variations in the monthly daily average intake were observed, indicating that management of these shelters requires various strategies. This study was performed to analyze and interpret meaningful statistics for improving the efficiency of animal shelters in Seoul. However, inconsistent collection of animal statistics limited data compilation. Creation of a basic animal statistics matrix with reference to well-designed matrices from recognized professional animal shelters is essential. These complied statistical data will help plan for future animal shelter needs in Seoul.
Animal Welfare
;
Animals
;
Housing
;
Local Government
;
Seasons
;
Seoul
;
Statistics as Topic*
10.Combined Ipsilateral Fracture and Dislocation of Hip, Knee and Foot Joints: A Case Report.
Hyoung Soo KIM ; Ju Hak KIM ; Sang Joon PARK ; Jae Won HYUNG
Journal of the Korean Fracture Society 2012;25(1):73-76
Although clinical cases of ipsilateral knee and hip joint dislocation have been reported, there are no reports of simultaneous ipsilateral hip, knee, and foot dislocations. We report here a case of a patient who had ipsilateral hip, knee, and foot joint dislocations, and review the relevant literature.
Dislocations
;
Foot
;
Foot Joints
;
Hip
;
Hip Joint
;
Humans
;
Knee