1.A mathematical approach to the mode of transmission of clonorchiasis in the inhabitants of Nak-dong and Han River basin.
Ki Won SONG ; Shin Yong KANG ; Soon Hyung LEE
The Korean Journal of Parasitology 1979;17(2):114-120
To understand the mode of transmission in clonorchiasis, a survey was made in Kim-hae Goon, South Kyong-sang Do (=Province). The mathematical analysis of the age prevalence was done on the egg positive rates. And another analysis for the comparison was also made to the cited data from two areas, North Kyong-sang Do and Ko-yang Goon, Kyong-gi Do. Some catalytic models of H. Muench (1959) were applied to the observed age prevalence. Because the both parameters, such as force of infection(a) and loss of positivity(b) were considered to be constant for a long period in the surveyed area, the two stage catalytic model by Muench was chosen to the analysis. In the surveyed area, Kim-hae Goon where the egg positive rates were 56.2 percent and 61.2 percent (by Kim, 1974), the constant values of 'a' were found to be 0.051 and 0.089 respectively. In other words, the force of infection was 51, 89 per 1,000 susceptibles. The values of 'b' were found to be 0.006 and 0.005. This means that the rates of disappearance from egg positive cases to negative were 6 and 5 per annum per l,000 positive cases in above area. Therefore, the two catalytic curves were expressed by the following equations, y = 1.133 {e(-0.006t) - e(-0.051t)} and y = 1.047 {e(-0.005t) - e(-0.089t)} respectively. In the cases of North Kyong-sang Do and Ko-yang Goon, Kyong-gi Do where the egg positive rates of clonorchis shown as 27.7 percent and 15.2 percent by Shin (1964) and Kim (l974), the curves were expressed by y = 1.769 {e(-0.010t) - e(-0.034t)} and y = 2.857 {e(-0.020t) - e(-0.027t)} respectively. From the above mathematical analyses by age prevalence in clonorchiasis, it was considered that the mode of transmission of clonorchiasis in the surveyed area, Kim-hae Goon presented more rapid pattern than those of North Kyong-sang Do and Ko-yang Goon, Kyong-gi Do.
parasitology-helminth-trematoda
;
clonorchiasis-Clnorchis sinensis
;
epidemiology
;
transmission
2.A Case of Cryptococcal Meningitis.
Won Yong KANG ; Byung Hee CHOI ; Ki Chang HAN
Journal of the Korean Pediatric Society 1981;24(12):1219-1222
No abstract available.
Meningitis, Cryptococcal*
3.The Result of the Tension Band Internal Fixation
Key Yong KIM ; Duk Yun CHO ; Ki Won HAN
The Journal of the Korean Orthopaedic Association 1978;13(4):741-751
The principle of the tension band technique is to counteract the tensile forces acting across the fracture site and to convert them into compressive forces. We have experienced 37 fractures treated with tension band technique from 1975 to 1978 and the results are as followings; 1. 37 Cases of fracture were treated by tension band technique. Eight cases out of 37 were olecranon fractures. 16 cases were patellar fractures. 10 cases were malleclar fractures. and three cases were trochanteric fractures of the femur. 2. As post-operative immobilization, applied cast splint in almost of the cases except application of hip spica cast in trochanteric fracture. 3. The average duration of immobilization in each cases, 12 days in olecranon, two weeks in patella, four weeks in malleolus and six weeks in greater trochanter respectively. 4. The radiological union was obtained in seven weeks in olecranon, six weeks in patella, eight weeks in malleolus and six weeks in greater trochanter. 5. As complication, one case of nonunion in olecranon, one case of infection and, one case of wire breakage in patella and one case of traumatic arthritis in malleolus were noted, which needed further surgery. 6. In conclusion, tension band wiring is considered as a good method for the fractures involving joing, olecranon, patella, and malleolus because the technique has advantages such as rigid internal fixation, shortening the duration of immobilization and fracture healing and early mobilization of the neighboring joints.
Arthritis
;
Early Ambulation
;
Femur
;
Fracture Healing
;
Hip
;
Hip Fractures
;
Immobilization
;
Joints
;
Methods
;
Olecranon Process
;
Patella
;
Splints
4.Multiply Operated Lumbar Spine.
Kee Yong HA ; Ki Won KIM ; Cheong Ho CHANG ; Ji Yun WON
Journal of Korean Society of Spine Surgery 1997;4(2):329-336
STUDY DESIGN: A retrospective analysis was performed on 40 patients who had had previous lux bar spine surgeries. OBJECTIVE: To determine what factors most influenced surgical outcome and to analyze results in a series of revision lumbar surgeries. SUMMARY OF BACKGROUND DATA: Satisfactory surgical outcome of the revision lumbar surgery range from 28% to 82% and are rarely comparable to primary surgery. Many factors predicting outcome from repeat lumbar surgery haute been listed. METHODS: Forty patients were analyzed who had had previous lumbar surgeries. The patients were classified into 5 groups according to diagnosis: 3 Infection,5 instability,8 nonunion, 14 HNP and 10 spinal stenosis. of 40 patients,33 patients(82.5%) underwent fusion with instrumentation for repeat surgery. Their clinical course was followed for a minimum of 1 year. The number of surgery on each mpatient was 1.3 times on an average. RESULTS: Overall, 80% of patients had a satisfactory result. Obviously extruded or sequestrated HNP in MRI findings, complete block of contrast with severe radiculopathy and/or myelopathy in spinal stenosis, complete decompression, neurolysi s and fusion with instrumentation, and longer than 6 month pain relief after precious surgery were correlated with satisfactory outcome. However, the number of precious operation, age, repair of pseudarthrosis , no abnormality at surgery and combined multiple degenerative joint disease were significantly correlated with poor surgical outcome. The most common complication during repeat surgery was dural tear in 5 cases(12.5%). CONCLUSIONS: Success rate of revision surgery was low as compared to primary operation. Therefore, erroneous diagnosis and faulty surgical technique understandably lead to failure, and precise attention to preoperative and intraoperative detail can minimize these sources of error.
Decompression
;
Diagnosis
;
Humans
;
Joint Diseases
;
Magnetic Resonance Imaging
;
Pseudarthrosis
;
Radiculopathy
;
Reoperation
;
Retrospective Studies
;
Spinal Cord Diseases
;
Spinal Stenosis
;
Spine*
;
Tears
5.Long Segmental Fixation for unstable Thoracolumbar Fracture Without Severe Neurologic Involvement.
Kee Yong HA ; Kee Haeng LEE ; Ki Won KIM ; Kee Won RHYU ; Ran Kyung HA
The Journal of the Korean Orthopaedic Association 1997;32(3):530-538
Long segmental fixation with TSRH posterior instrumentation for 19 patients who had unstable thoracolumbar fracture was performed between October 1992 and April 1995. The patients were followed for an average of 22 months. Measurements of the deformity angle, kyphosis, vertebral height, and the intervertebral angle were made. The patients were divided into 2 groups according to configurations of instruments for lower segmental fixation. For one group, only hooks were used, and for the others group pedicular screws and lateral offset hooks were used together at the same segment. Therefore, the purpose of this study is to anlyze the correctability following long segmental fixation and to compare one segmental fixation using both screws and lateral offset hook systems with two segmental fixation using hook systems for distal fixation. There was an overall correction of kyphosis at follow-up of 6.9degrees (27.1%) after a loss of 4.3degrees from operative correction. Overall correction of deformity angle was 8.2degrees (32.2%). Loss of vertebral height at final follow-up was 4.4%. And loss of intervertebral angle was 2.0degrees at follow-up. There was no difference of overall results between the hook group and the pedicular screw with lateral offset hook group. However, there was a significant improvement of the correction of kyphosis and restoration of vertebral height in patients who underwent operation within 7 days after injury, as compared to delayed operation. Therefore, the timing of surgery is the most important factor in order to correct the deformity caused by unstable thoracolumbar fractures. There was no significant loss of correction and no metallic failure. Therefore, rodding long with the method of one segment distal fixation using screws and lateral offset hook together can provide excellent correctability, maintenance of correction, preservation of distal lumbar joints, prevention of implant failure and complication.
Congenital Abnormalities
;
Follow-Up Studies
;
Humans
;
Joints
;
Kyphosis
6.A Case of Acute Pancreatitis in Systemic Lupus Erythematosus.
Yong Beom PARK ; Chang Hee SUH ; Won Ki KO ; Won Ki LEE ; Choong Won LEE ; Chan Hee LEE ; Chang Ho SONG ; Ji Soo LEE ; Soo Kon LEE
The Journal of the Korean Rheumatism Association 1998;5(1):97-102
Systemic lupus erythematosus (SLE) is a multisystemic disease that can involve the gastrointestinal tract, liver, and biliary system. Symptomatic pancreatic involvement, however, has rarely been reported. It may be part of the primary disease process, such as vasculitic or autoimmune etiology, or associated with drug therapy, in particular corticosteroid. We report here a lupus patient who developed severe pancreatitis within 30 hours of initiation of corticosteroid therapy; we also discuss the relation between pancreatitis and systemic lupus erythematosus.
Biliary Tract
;
Drug Therapy
;
Gastrointestinal Tract
;
Humans
;
Liver
;
Lupus Erythematosus, Systemic*
;
Pancreatitis*
7.Classification of Adult Isthmic Spondylolisthesis: Based on the Morphologic Changes of Spinal Canal and Neural Contents by Myelography and CT Scan.
Ki Won KIM ; Kee Yong HA ; Yong Sik KIM ; Soon Yong KWON ; Ho Tae KIM ; Young Kyun WOO
Journal of Korean Society of Spine Surgery 1997;4(2):291-299
STUDY DESIGN: We classified adult isthmic spondylolisthesis based on the findings of postmyelographic CT scanning. OBJECTIVES: To propose a new classification that could be used as a useful guideline when evaluating the patient with adult isthmic spondylolisthesis. SUMMARY OF LITERATURE REVIEW: Morphologic changes of the spinal canal and its neural contents in the adult patient with isthmic spondylolisthesis and their relations to radiological variables have not been well described in literature. MATERIALS AND METHODS: 32 adult patients with one level isthmic spondylolisthesis underwent myelography followed by CT scanning. Based on these findings, we classified each patient with four morphologic criteria; 1. dural station I or ll by the location of dural sac, 2. non-compression or compression type by the existence of lateral compression of dural sac. 3. root station I or ll by the location of nerve root, 4. hook or smooth type by the shape of spinal canal. Subsequent statistical analyses to assess the relationships between our newly developed classification and clinical variables were tested by SPSS software. RESULTS: Dural station correlated positively with percent slip(rpb=0.39; p=0.026). Patient age was closely related to the lateral compression(rpb=0.54, p<0.01) which consequently decreased transverse diameter of dural sac(rpb=-0.68, p<0.01). Both dural station and lateral compression were important in the prediction of the extent of the dural involvement. Root station of the smooth type correlated positively with percent slip(reb=0.47: p=0.038), while that of the hook type did not. Consequently, nerve root of the hook type entered neural foramen under the pedicle, whereas that of the smooth type entered at various locations depending on the degrees of percent slip. Depth of lateral recess was significantly less in the hook type than in the smooth type(p<0.01). Stretching of the nerve root, produced by posterior migration of the nerve root, was observed only in the smooth type. CONCLUSIONS: We strongly recommend the use of our classification because it is easy to apply and has a high correlation with radiological variables.
Adult*
;
Classification*
;
Humans
;
Myelography*
;
Spinal Canal*
;
Spondylolisthesis*
;
Tomography, X-Ray Computed*
8.The outcome of pregnancy following renal transplantation.
Yoo Sun KIM ; Ki Bum KWON ; Chang Kwon OH ; Hye Jung YUN ; Yong Won PARK ; Ki Il PARK
The Journal of the Korean Society for Transplantation 1993;7(1):149-155
No abstract available.
Kidney Transplantation*
;
Pregnancy*
9.Immunomodulation Therapy in Children with Aplastic Anemia.
Won Suk SUH ; Ki Sik MIN ; Woo Gun CHOI ; Hack Ki KIM ; Kyoung Sn LEE ; Soon Yong LEE
Journal of the Korean Pediatric Society 1990;33(2):170-177
No abstract available.
Anemia, Aplastic*
;
Child*
;
Humans
;
Immunomodulation*
10.Giant Colonic Diverticulum.
Ki Won YU ; Moo Jun BAEK ; Sung Yong KIM
Journal of the Korean Society of Coloproctology 1999;15(3):227-232
While diverticulosis of the colon is a relatively common disease, a solitary giant colonic diverticulum is rare. Although there exist some theories about the formation of the giant colonic diverticulum, none is really conclusive. The preoperative diagnosis of giant colonic diverticulum is made radiographically with findings of a large, smoothly marginated, round homogeneous radiolucency in the abdomen that is in close apposition to the colon on barium enema examination. Early surgical treatment is necessary since the complication rate is high. One case of giant colonic diverticulum is presented, the clinical, radiologic and pathologic findings are discussed, and the etiology and differential diagnosis, reviewe.
Abdomen
;
Barium
;
Colon*
;
Diagnosis
;
Diagnosis, Differential
;
Diverticulum
;
Diverticulum, Colon*
;
Enema