1.A Study of Electrodiagnostic Changes after Decompression of Chronic Cauda equina compression in dogs.
Chong Hyuk CHOI ; Nam Hyun KIM
The Journal of the Korean Orthopaedic Association 1997;32(1):163-176
The purposes of this study were to detect the indices of evaluating for degree of compression and to detect the indices of recovery after decompression in different time intervals in the animal model of 50 percent compression of the cauda equina, through the examination of neurologic status and electrodiagnosis. Twenty-one male dogs, weighing between nine and eleven kilogram, were used. Three experimental groups were studied. One group (5 dogs) served as controls. In the other groups, the cauda equina was constricted by 50 percent to produce chronic compression, and decompression was done after 2 weeks compression in one group and 4 weeks compression in another group. The dogs in which the cauda equina had been decompressed at 2 weeks, showed the recovery of sensory evoked potentials at 2 weeks after decompression and bulbocavernosus reflexes at 4 weeks. The dogs in which the cauda equina had been decompressed at 4 weeks, showed the recovery of sensory evoked potentials and bulbocavernosus reflexes at 4 weeks after decompression. In both groups of the cauda equina compression, motor evoked potentials were partially recovered by 6 weeks after decompression. The initial neurological deficits in both groups were improved by 6 weeks. The cauda equina revealed that the epidural scar tissue in compressed site was more severe in 4 weeks compression group. But the substance of the cauda equina did not have any pathological changes in gross examination. Microscopically, neural tissue was showed the normal appearance without pathological changes in all groups. In conclusions, the early decompression of cauda equina revealed that the onset of recovery was more faster and the amplitude of recovery was larger comparing with delayed decompression in electrodiagnostic test. Also, the surgical decompression itself was helpful to improve the electrodiagnostic changes around 4 weeks after decompression. Sensory evoked potential was improved at the first and motor evoked potentials was recovered after disappearance of the claudication.
Animals
;
Cauda Equina*
;
Cicatrix
;
Decompression*
;
Decompression, Surgical
;
Dogs*
;
Electrodiagnosis
;
Evoked Potentials
;
Evoked Potentials, Motor
;
Humans
;
Male
;
Models, Animal
;
Polyradiculopathy
;
Reflex
2.Ultrasound guided reduction of childhood intussusception
Journal of the Korean Radiological Society 1986;22(5):788-793
Following on from diagnosis using ultrasound, hydrostatic reduction using saline enema under ultrasoundguidance was tried in 20 cases of childhood intussusception. The conclusions were as follows: 1. Success rates ofsaline enema under ultrasound guidance during a frist-8 month period(P1) and a second 10 month period(P2) were55.6%(5/9) and 54.5%(6/11) respectively. Average succes rate was 55%(11/20). 2. During the periods of P1 and P2,no case was reduced by barium enema in 6 cases of failed reduction with saline enema. 3. During the period of P2, 5 cases of successful redution with saline enema were confirmed by clinical follow-up without barium enema. 4.During the periods of P1 and P2, 9 cases of failed reduction with saline enema were operated, resulting in 6 casesof segmental resection and 3 cases of manual reduction. 5. The obvious advantages of this method are: 1. Noradiation hazard. 2. No fear of barium peritonitis. 3. Detection of leading point. 6. With above results, thismethod could completely replace barium enema. And ultrasonography should be the initial study in the evaluation ofintussusception in children and then if necessary, saline enema under ultrasound guidance should be done.
Barium
;
Child
;
Diagnosis
;
Enema
;
Follow-Up Studies
;
Humans
;
Intussusception
;
Methods
;
Peritonitis
;
Ultrasonography
3.Clinical Observation of Peripheral Nerve Injury of the Upper Extremity
Nam Hyun KIM ; Kyung Chong CHO
The Journal of the Korean Orthopaedic Association 1969;4(2):15-21
Ninety two injuries of the main nerves in the upper extremity observed in 79 patients, were studied at the Department of the Orthopedic Surgery, 17th Army Hospital from May 1965 to Aug. 1968. The treatment given consisted of neurolysis in 15, neurorrhapy in 77(primary 43 and secondary 34) and tendon transplantation and transfer in 11 cases. The results for the median, ulnar and radial nerves after primary and secondary suture were analyzed with respect to the level of injury(high and lower). The results of the median nerve repair were more succesful than those of the ulnar nerve, In these two nerve injuries, the sensory recovery was better than the motor and secondary suture gave better results than primary suture. Thirteen cases failed to respond to primary or secondary nerve repair, among those tendon transfer or tendon transplantation was tried in eleven cases, from the latter approximately 25% of motor recovery could be seen.
Hospitals, Military
;
Humans
;
Median Nerve
;
Orthopedics
;
Peripheral Nerve Injuries
;
Peripheral Nerves
;
Radial Nerve
;
Sutures
;
Tendon Transfer
;
Tendons
;
Ulnar Nerve
;
Upper Extremity
4.Anterior Interbody Fusion in Spondylolisthesis
Nam Hyun KIM ; Chong Hyuk CHOI
The Journal of the Korean Orthopaedic Association 1988;23(3):789-806
Spondyliolisthesis is the major structural changes in the spine and is more directly related to the low back pain syndrome. The many operative techniques have been used but each of them had several disadvantage as well as advantage. Since the anterior lumbar fusion in spondylolisthesis was introduced by Carpener in 1932, many authors have reported the favorable results regard to anterior arthrodesis in spine. Ideally the system of spine fixation is mechanically efficient and anatomical restoration of deformed structure. The anterior interbody fusion is more satisfactory to this deal fixation of spine than any other surgical method. We reviewed the cases of fifty seven patients who underwent anterior interbody fusion with autoiliac bone grafts for spondylolisthesis and were followed for one to twelve years. 1. The most common type was isthmic type in 61% and the degenerative type was observed in 25%. 2. The fifty lumbar vertebra slipping was observed most commonly and in two patinets, L4 and L5 vertebra slipped simultaenously. 3. In radiological results, we obtained complete fusion of grafts to vertebra in 73%, incomplete fusion in 15% and absorption of graft noticed in seven patients(12%). 4. We obtained the favorable results in 84% patients clinically. 5. The clinical results was not correlated with roentgenografic evidence of union. 6. Anterior discectomy and arthrodesis with autoiliac bone graft was a safe procedure in grade I and II spondylolisthesis but in grade III, the procedure was not recommended. 7. The simple Knight-Kim back brace was satisfactory to immobilization after anterior interbody fusion without graft union failure.
Absorption
;
Arthrodesis
;
Braces
;
Diskectomy
;
Humans
;
Immobilization
;
Low Back Pain
;
Methods
;
Spine
;
Spondylolisthesis
;
Transplants
5.Three Cases of Facial Atopic Dermatitis Treated with Topical Pimecrolimus (Elidel).
Young Hyun JOO ; Chong Hyun WON ; Kyu Han KIM
Annals of Dermatology 2004;16(3):120-124
No abstract available.
Dermatitis, Atopic*
6.Comparative analysis on morphological characteristics of entrance acdording to the range of fire in gunshot injuries.
Chong Jai KIM ; Soong Deok LEE ; Chang Hyun CHI
Korean Journal of Legal Medicine 1993;17(2):44-50
No abstract available.
Fires*
7.Effects of Saponin on Osteoporosis Induced by Ovriectomy in Rats
Chong Hyuk CHOI ; Nam Hyun KIM ; Hwan Mo LEE
The Journal of the Korean Orthopaedic Association 1995;30(4):808-816
Osteoporosis is defined as a pathologic condition that there occurs no change in the chemical composition of the bone, while bone resorption is abnormally increased, compared with osteogenesis, leading to a decrease in bone amount. Though many varieties of therapy have been tried, no definitely effective method has been found. Ginseng saponin is an importanat component of Korean ginseng and many studies have been performed for investigating its effectiveness. But there has been no report on saponin effects to osteoporosis. The purpose of this studies is to find out the effect of saponin in osteoporosis induced by ovariectomy in rats. For the study, 30 rats underwent sham operation(group I) and 90 rats were ovariectomized. In group ll (30 rats), only ovariectomy was performed. In group III (30 rats), 50mg/kg/day ginseng saponin was administered per oral route and group IV (30 rats) was administrated 150mg/kg/day saponin. All the rats were sacrificed at the 16th week. The sections of the femoral shaft were stained using Villanueva bone stain and the sections of the tibia were stained with hematoxylin-eosin. The femoral shaft and metaphyseal region were applied to compression device for measurements of bone consistency. The effect of saponin increased weight of the femur. The cross sectional area and cortical area of the femoral shaft were significantly higher in 50mg saponin group(group III) than osteoporosis group. But there was no significant difference in the size and number of osteoclast and the percentage of trabecular bone between saponin group(group III ,IV)and osteoporosis group. In the biomechanical test, the consistency of cortical bone was significantly increased in 50mg saponin group than osteoporosis group. In conclusion, saponin had an effect on experimental osteoporosis induced by ovariectomy in rats. As though its precise mechanism was unknown, we considered that its action mechanism was due to osteoblastic activity resulting in a correction of bone mass deficit in osteoporotic rats.
Animals
;
Bone Resorption
;
Female
;
Femur
;
Methods
;
Osteoblasts
;
Osteoclasts
;
Osteogenesis
;
Osteoporosis
;
Ovariectomy
;
Panax
;
Rats
;
Saponins
;
Tibia
8.Haemophilus influence isolated from sputum specimens: prevalence biotypes and antimicrobial susceptibility.
Yunsop CHONG ; Kyung Soon SONG ; Chik Hyun PAI ; Eui Chong KIM ; Tae Yeal CHOI
Korean Journal of Infectious Diseases 1992;24(2):107-113
No abstract available.
Haemophilus*
;
Prevalence*
;
Sputum*
9.Haemophilus influence isolated from sputum specimens: prevalence biotypes and antimicrobial susceptibility.
Yunsop CHONG ; Kyung Soon SONG ; Chik Hyun PAI ; Eui Chong KIM ; Tae Yeal CHOI
Korean Journal of Infectious Diseases 1992;24(2):107-113
No abstract available.
Haemophilus*
;
Prevalence*
;
Sputum*
10.The Case Report of a Child with High-Risk Acute Lymphoblastic Leukemia, Treated with Allogenic Peripheral Blood Stem Cell Transplantation.
Jun GOH ; Ji Hyun OH ; Hyun Sang CHO ; Dug Ha KIM ; Chong Young PARK
Journal of the Korean Pediatric Society 2000;43(11):1505-1508
Allogenic peripheral blood stem cell transplantation could be used instead of allogenic bone marrow in treatment of leukemia in children. This 10-year-old female patient with high-risk acute lymphoblastic leukemia received a myeloablative regimen followed by allogenic peripheral blood stem cell transplantation from an HI A-identical sibling donor. Neutrophil recovery to greater than 500/pL occurred at day 11 and platelets recovered to greater than 20,000/pL at day 13. Allogenic peripheral blood stem cell transplantation can be performed safely and may result in a rapid neutrophil and platelet engraftment, without any apparent increased risk of acute graft versus host disease.
Blood Platelets
;
Bone Marrow
;
Child*
;
Female
;
Graft vs Host Disease
;
Humans
;
Leukemia
;
Neutrophils
;
Peripheral Blood Stem Cell Transplantation*
;
Precursor Cell Lymphoblastic Leukemia-Lymphoma*
;
Siblings
;
Tissue Donors