1.An Experimental Study on Sweat Secretion During 2 Hours of Heat Exposure.
Chung Koo CHO ; Won hyoung KANG ; Sung Nack LEE
Korean Journal of Dermatology 1984;22(2):127-136
Impaired sweating reportedly has been associated with a high incidence of heat pyrexia. An important cause is attributed to sweat gland fatigue following intense prolonged sweating. For further investigation, sweat gland fatigue was induced by heat exposure for 2 hours in a hot room (dry bulb 46c, wet bulb 37c) with 9 healthy subjects. Sweating rate of the right forearm increased progressively for the first 45 minutes with a maximum value of 40.0mg/4. 91 cm2/15 min followed by a slow decrease to 24.9 mg/4.91cm2/15 min at the end of 2 hours. Active sweat pores decreased in number following 2 hours of heat exposure but the differences were not significant statistically. In spite of the higher sweat rate on the back, the number of active sweat pores was smaller as compared to the right forearm. Na+ concentrations of the second hour sweat collections were higher than those of the first hour with difference of 14. 9 mEq/l on the right forearm and 12.3 mEq/1 on the back.
Fatigue
;
Fever
;
Forearm
;
Hot Temperature*
;
Incidence
;
Sweat Glands
;
Sweat*
;
Sweating
2.Distraction Arthroplasty of the Elbow
Han Koo LEE ; Moon Sang CHUNG ; Chong Suh LEE ; Kyoung Won PARK ; Kye Hyoung LEE
The Journal of the Korean Orthopaedic Association 1989;24(2):483-488
So many modalities have been suggested for the treatment of servere pain and ankylosis of the elbow with destruction of the articular surfaces. Among them, two major methods which have been widely used are resection arthroplasty and prosthetic replacement arthroplasty. However prosthetic replacement arthroplasty has some problems. Its indications are limited in the elderly inactive subjects. And there have been many kinds of complications including loosening and infection. Also, resection arthroplasty in now rarely indicated due to severe instability. From July 1980 to July 1987, we tried distraction arthroplasty in 8 cases of elbow with severe destruction of its articular surfaces, mainly in the young active persons. The average follow-up period was 45 months. The effect of distraction arthroplasty on relief of pain was not remarkable. The average increase in ROM, including that of one reankylosed elbow, was 51 ±22 degrees in flexion-extension and 48 ±23 degrees in pronstion-supinstion. No deep wound infection and instability which was main complication of resection arthroplasty were observed with our method of distraction arthroplasty. On the basis of functional results, the the results were excellent in 4, good in 1, fair in 2 and poor in 1 cases. In conclusion, distraction arthroplasty of the elbow can be one of the of effective methods reconstruction for the young active patients with the destruction of the elbow, if they are intelligent and motivated.
Aged
;
Ankylosis
;
Arthroplasty
;
Arthroplasty, Replacement
;
Elbow
;
Follow-Up Studies
;
Humans
;
Methods
;
Wound Infection
3.The Accuracy of Magnetic Resonance Imaging Compared with the Findings of Arthroscopy in Meniscus Injury
Han Koo LEE ; Sang Cheol SEONG ; Soo Ho LEE ; Phil Hyun CHUNG ; Kye Hyoung LEE
The Journal of the Korean Orthopaedic Association 1989;24(6):1633-1642
From March 1988 to August 1989, 51 knees with clinically suspected meniscus injuries were examined by both MRI and arthroscopy and compared their findings prospectively on the basis of arthroscopic findings to determine the accuracy of MRI in detecting meniscus injury of the knee. We used 2.0 tesla superconducting magnet imager(Spectro-20000, GoldStar, Korea) to obtain MR imaging. Our protocol for imaging was producing Tl sagittal images by spinecho technique and T2 coronal images by gradient echo technique, interleaved at 4mm continuously while the patient's knee was in 8–10 degrees of external rotation and surface coil was placed posteriorly to the knee in supine position. We grouped and correlated the findings of MRI with the arthroscopic findings. With this noninvasive MRI, we could obtain multiplanar, high quality images without compliations. Compared with the arthroscopic findings, MRI resulted in a high diagnostic accuracy of 96 and 86 percent for the medial and lateral meniscus, respectively. And it aided in optimal surgical planning for the clinically suspected meniscus injuries.
Arthroscopy
;
Knee
;
Magnetic Resonance Imaging
;
Menisci, Tibial
;
Prospective Studies
;
Supine Position
4.Experimental Study on the Effects of Suture and Limited Active Motion on Achilles Tendon Healing
Goo Hyun BAEK ; Han Koo LEE ; Sang Hoon LEE ; Bong Goo YEO ; Kyu Hyoung CHO
The Journal of the Korean Orthopaedic Association 1994;29(1):36-43
The injured tendon is thought to be healed by, extrinsic healing from tendon sheath and adjacent connective tissue, and intrinsic healing from epitenon and endotenon. About the factors influencing the healing of injured tendon, many authors reported the effects of mobilization, electricity, ultrasound and various druge. Especially, active or passive mobilization had been known to promote the healing process and to reduce adhesion. To investigate the influences of active limited mobilization, intrinsic and extrinsic healing process, right Achilles tendons of 30 New Zealand white rabbits were grouped according to the types of treatments (Group I; tenotomy of Achilles tendon only, Group II; Tenotomy and long leg cast, Group III; surgical repair after tenotomy and long leg cast). The tendon sheath was repaired in all the groups, and the left Achilles tendons were used as control. At six weeks after operation, the tendons were removed and analysed biomechanically using Instron 1000, and histologically. The following results were obtained: 1. There were significant decreased of break strength, in order of Group III, Group I and Group II(p < 0.05). But, no difference was found between control group and Group III. 2. Extension length to the rupture, was decreased significantly in the experimental groups than control group. But there was no difference among the experimental groups. 3. Histologically, dense proliferation of fibroblasts and hypertrophy of tendon was observed in Group I; and matured fibricytic tendon tissues in Group II and III. In Group II, the amount of matured tendon tissues and degree of maturity were less than in Group III. In summary, suture and active limited motion were considered as promoting factors on the tendon healing.
Achilles Tendon
;
Connective Tissue
;
Electricity
;
Fibroblasts
;
Hypertrophy
;
Leg
;
Rabbits
;
Rupture
;
Sutures
;
Tendons
;
Tenotomy
;
Ultrasonography
5.Open Reduction and Internal Fixation of the Displaced Fractures of the Acetabulum.
Do Hyun MOON ; Beom Koo LEE ; Jin Hong KO ; Hyoung Ill KIM
The Journal of the Korean Orthopaedic Association 1998;33(4):974-982
Authors reviewed 28 cases of displaced acetabular fracture treated operatively from Februay 1991 to January 1996 and followed up more than 1 year. The clinical results were retrospectively analyzed with consideration of surgical problems and complications. The results were as follows; 1. According to Letournels classification, we had 16 elementary fractures(57%) and 12 associated fractures(43%). 2. Kocher-Langenbeck approach in 16 cases, ilioinguinal in 9 cases, extended iliofemoral 2 cases and combined approach in 1 case were used. 3. The devices for internal fixation were as follows: screw only in 12 cases(elementary fracture 9cases, associated fracture 3 cases), plate and screw in 16 cases(elementary fracture 7 cases, as-sociated fracture 9 cases). 4. There were complications such as 3 degenerative arthritis, 2 superficial wound infection, 1 iatrog-enic sciatic nerve palsy and 1 avascular necrosis of femoral head and no postoperative heterotro-phic ossification. 5. Satisfactory reduction by radiologic criteria was gained in 23 cases(82%). Satisfactory results by clinical criteria(by dAubigne & Postels) was gained in 21 cases(75%). Only 2 patient with a satisfactory radiologic reduction was clinically unsatisfactory. It seems that the satisfactory operative reduction of the fracture is the factor that correlates best with a satisfact-ory clinical result.
Acetabulum*
;
Classification
;
Head
;
Humans
;
Necrosis
;
Osteoarthritis
;
Retrospective Studies
;
Sciatic Neuropathy
;
Wound Infection
6.The effect of Autoclaved and Low Heat - treated Autogenous Bone Grafting on the Osteosynthesis in Rabbit.
Hak Jin MIN ; Han Koo LEE ; Sang Hoon LEE ; Keun Woo KIM ; Yong Hoon KIM ; Kook Hyoung CHO ; Moo Hyoung KANG
The Journal of the Korean Orthopaedic Association 1998;33(3):903-913
Heat-treated autogenous bone graft has been utilized in the cases with large hone defects associated with tumors, chronic osteomyelitis, and trauma. Conventional autoclaved autogenous bone grafting, however, has inherent disadvantages that included decreased biomechanical strength, and loss of osteogenesity. In contrast, despite devitalizing the tumor cells, low heat-treatment can render autogenous hone grafts to retain better biomechanical strength as well as to preserve osteogenesity by avoiding destruction of hone morphogenetic protein. To investigate biomechanical strength and osteogenesity of heat-treated autogenous bone grafts, rahbits were classified into three groups: groupl, in-situ implantation of autogenous graft in the diaphyseal defect of the tibia without any heat treatment; group 2, reimplantation of graft after low heattreatment; group 3, reimplantation of graft after autoclaving. Radiological, histological, and scintigraphic examination were performed postoperativeIy at 2nd, 4th, 6th, 9th, 12th weeks. And biomechanical test was performed postoperatively at 6th, 9th, 12th weeks. Biomechanical test revealed that there were no statistical differences among three groups at 6th week and 9th week. However, at 12th week postoperatively, there were significant differences between group 2 and group 3, and between group 1 and group 3. Radiological and histological examinations showed that new bone formation started earlier in groups l and 2, compared to group 3. Also bone remodeling was advanced in group I and 2, com- pored to group 3. Scintigraphically, the increase of 99mTc-MDP uptake was delayed in group3, compared to group l and 2. Based upon above findings, it was concluded that low heat-treated autogenous bone grafting was hetter than autoclaved autogenous bone grafting in promoting bone healing with retained biomechanical strength.
Bone Remodeling
;
Bone Transplantation*
;
Hot Temperature*
;
Osteogenesis
;
Osteomyelitis
;
Replantation
;
Technetium Tc 99m Medronate
;
Tibia
;
Transplants
7.Retraction: Metabolic Alterations in Parkinson's Disease after Thalamotomy, as Revealed by 1H MR Spectroscopy.
Hyun Man BAIK ; Bo Young CHOE ; Hyoung Koo LEE ; Tae Suk SUH ; Byung Chul SON ; Jae Mun LEE
Korean Journal of Radiology 2007;8(2):184-184
No Abstract Available.
8.The amendment tendency analysis of the Korean Infectious Disease Prevention Act and a recommendation for the next amendment.
Chang Yong WHANG ; Hee Choul OHR ; Duk Hyoung LEE ; Ki Dong PARK ; Jong Koo LEE
Korean Journal of Preventive Medicine 1998;31(3):540-563
This Study has been carried out to make a recommendation for the next amendment of the Infectious Disease Prevention Act with a specific focus on the kind of notifiable disease. Korean, Japanese, German, U.S, English and French acts on infectious diseases prevention were reviewed, compared with and analyzed in regards of numbers and kinds of notifiable infectious diseases and their tendency of amendments. An criteria was designed to assess the level of validity of diseases to be designated in the act. Four items, the fatality (greater than 10% or not), the possibility to make a big epidemic, the availability of efficient vaccination and the usefulness of isolation, are used in the assessment. This index is applied to the diseases in Korean and other countries' Infectious Disease Prevention Acts. Results are as follows : 1. The Korean Infectious Disease Prevention Act has a unique way of classifying the notifiable infectious disease, that is, the first, the second and the third class. But the author cannot find the basis of classification. No other countries reviewed have the similar classification. 2. The ten diseases, cholera, plague, yellow fever, diphtheria, typhoid fever, poliomyelitis, rabies, tetanus, malaria, and meningococcal meningitis are designated as the notifiable diseases not only in Korea but also in Japan, Germany, United States, England and France. 3. Thirty seven diseases including small pox, Lassa fever, anthrax, influenza, German measles, Legionellosis, infection with E. coli O157:H7, Q-fever, brucellosis, Lyme disease are designated as legal disease at least one of the above mentioned countries. 4. The Korea has been coped with the change of the infectious disease occurrence for last fifty years in amendment of the Infectious Disease Prevention Act. 5. Japan has a special infectious surveillance system composed of 3,880 clinics throughout the whole country. 6. Germany has classified infectious diseases in five categories which are based on seriousness of disease. Any confirmed death, cases and suspected cases in class I should be reported within 24 hours. But only confirmed death and cases in class II, but not suspected cases, are repotable in Germany. 7. Plague, bacillary dysentery, pertussis, mumps, Japanese encephaltis and Korean hemorrhagic fevers are diseases with high credits validity index among Korean legal disease. 8. German measles, anthrax, E. coli O157:H7 infection, Lassa fever, Q-fever, brucellosis are high in validity index among those which are not designated in Korea but designated in other countries. In conclusion, the Korean Infectious Disease Prevention Act has well been coped with the changes of infectious disease occurrence for last fifty years, but the classification basis and the validity of diseases to be designated as legal diseases is worth reevaluating.
Anthrax
;
Asian Continental Ancestry Group
;
Brucellosis
;
Cholera
;
Classification
;
Communicable Diseases*
;
Diphtheria
;
Dysentery, Bacillary
;
England
;
Fever
;
France
;
Germany
;
Humans
;
Influenza, Human
;
Japan
;
Korea
;
Lassa Fever
;
Legionellosis
;
Lyme Disease
;
Malaria
;
Meningitis, Meningococcal
;
Mumps
;
Plague
;
Poliomyelitis
;
Rabies
;
Rubella
;
Tetanus
;
Typhoid Fever
;
United States
;
Vaccination
;
Whooping Cough
;
Yellow Fever
9.Hypercalcemia Associated with Bone Metastasis
Won Jong BAHK ; Ju Hai CHANG ; Seung Koo LEE ; Myung Sang MOON ; Young Kyun WOO ; Jung Man KIM ; Hyoung Min KIM ; Yong Koo KANG ; Seok Whan SONG
The Journal of the Korean Orthopaedic Association 1995;30(2):349-354
Hypercalcemia is a relatively common complication of cancer that is clinically important because, left unattended, it is associated with symptomatic deterioration and even death. So hypercalcemia can afflict the quality of life and complicate management of the cancer patients with anorexia, lethargic, stuporous mentality, and severely dehydrated. Nonetheless, most cancers are at an advanced stage by the time hyperclacemia develops, many clinicians share doubts about the role of antihypercalcemic therapy in this situation. Furthermore, because the symptoms of hypercalcemia may mimic that of progressive malignant disease or the toxic effects of chemotherapy and radiation therapy, this may not always be recognized. So concerns are needed for active management of patients with malignant hypercalcemia. The authors reviewed the morbidity and mortality in 20 patients with malignant hypercalcemia out of 219 patients with bone metastasis, who were treated at the department of orthopaedic surgery, Catholic University Medical College from January 1989 through December 1992. The results were as follows. 1. The overall incidence of malignant hypercalcemia was 8.6% of bone metastases (20 out of 219 cases).: lung cancer 11.2% (10 out of 89 cases), breast cancer 22.5% (7 out of 31 cases), stomach cancer 6.3% (3 out of 47 cases). 2. The underlying diseases associated with hyprecalcemia were 10 cases of lung cancer(50%), 7 cases of breast cancer(35%) and 3 cases of stomach cancer(15%). Out of lung cancers, 8 cases were squamous cell cancers, the other 2 cases were oat cell cancers. 3. Only 7 out of 20 patients were treated with hydration, diuretics, steroid, calcitonin and mithramycin. And the mean survival duration after recognition of hypercalcemia was 11.3 weeks independent of treatment. In conclusion, the authors emphasize that inspite of grave prognosis, when treated actively, calcium lowering therapy may allow patients to be discharged during terminal period of their illness.
Anorexia
;
Avena
;
Breast
;
Breast Neoplasms
;
Calcitonin
;
Calcium
;
Diuretics
;
Drug Therapy
;
Humans
;
Hypercalcemia
;
Incidence
;
Lung
;
Lung Neoplasms
;
Mortality
;
Neoplasm Metastasis
;
Neoplasms, Squamous Cell
;
Plicamycin
;
Prognosis
;
Quality of Life
;
Stomach
;
Stomach Neoplasms
;
Stupor
10.The Classification of Idiopathic Scoliosis.
Choon Ki LEE ; Ki Hyoung KOO ; Joon Hwan AN
Journal of Korean Society of Spine Surgery 2007;14(1):57-66
There are many classifications for idiopathic scoliosis but none of these is perfect. In the treatment of idiopathic scoliosis, it is essential to understand the characteristics of each classification system and exploit their individual advantages.
Classification*
;
Scoliosis*