1.Causes of Chronic Headache in Children.
Han Koo MOON ; Son Moon SHIN ; Yong Hoon PARK
Journal of the Korean Pediatric Society 1990;33(12):1680-1688
No abstract available.
Child*
;
Headache Disorders*
;
Humans
2.A Clinical Evaluation of Flatfoot
Moon Sang CHUNG ; Moon Sik HAN ; Jong Koo CHUNG
The Journal of the Korean Orthopaedic Association 1978;13(4):757-762
258 feet of patients with flatfoot were evaluated in this paper. The incidence of flatfoot is about 0.6% of the general population. The longitudinal arch was depressed in all of our cases of flatfoot, and there have been many patients suffering from pain after some kinds of heavy work. But there were no definite correlations found between the depression of the longitudinal arch and clinical symptom. The sag in the naviculo cuneiform joint is the most common X-ray finding in this series (93%), followed by the talo-navicular sagging (27%), Degenerative arthritis of the inter-tarsal joints was frequently found after the adolescent period. The talo-navicular joint was involved in arthritic changes in 60% of the cases, the subtalar joint 46% and the naviculo-cuneiform joint 42%. The prevalence of these changes was not increasing with the increasing age, so it is poatulated that the degenerative changes begin early in adolescent period. Accessory tarsal bones were more frequently seen in patients with flatfoot than in normal population. and the neck of the talus was usually deviated inferomedially. Now that the arthriric changes are very prevalent in the triple joints, there are many cases of flatfoot that should undergo the triple arth odesis inevitably if his conservative treatment was failed.
Adolescent
;
Depression
;
Flatfoot
;
Foot
;
Humans
;
Incidence
;
Joints
;
Neck
;
Osteoarthritis
;
Prevalence
;
Subtalar Joint
;
Talus
;
Tarsal Bones
3.Diagnosis and treatment of osteoid osteoma: review of 45 cases.
Han Koo LEE ; Moon Sang CHUNG ; Sang Hoon LEE
The Journal of the Korean Orthopaedic Association 1992;27(2):553-562
No abstract available.
Diagnosis*
;
Osteoma, Osteoid*
4.Failed Hip Nailing in Hip Fractures: A Radiological Analysis
Han Koo LEE ; Moon Sang CHUNG ; Yung Sik YANG
The Journal of the Korean Orthopaedic Association 1976;11(3):531-541
The fracture of the upper end of the femur is unique in orthopedics because it is endemic to an elderly population with special problem. In trochanteric fractures open reduction and internal fixation, with a hip nail used to maintain reduction, have become the standard treatment protocol for the elderly. Unlike fractures of the femoral neck, nonunion and avascular necrosis is rare but more frequently complicated by fatal sequele, such as pneumonia, thromboembolic disease, and decubitus ulceration. In order to achieve early ambulation of a patient with a trochanteric hip fracture, two conditions must be met: The implant used for fixation must be strong enough to withstand loadings exerted upon it during fracture healing, and the fracture itself must be rendered stable in a suitably reduced position. The treatment of the fracture of the femoral neck has a long and frustrating history. As recently as 20 years ago McCarroll remarked that this fracture must be considered “unsolved” until the incidence of aseptic necrosis and nonunion could be diminished or abolished. But now with adequate reduction, impaction, accurate internal fixation with newer devices, and carefully supervised postoperative care the fracture of the femoral neck can be expected to heal at least 90 per cent of the patients. A lower incidence of recognizable aseptic necrosis has been reported under these circumstances. X-ray films of 94 cases of hip nailing for hip fractures were collected in the Department of Orthopedic Surgery of Seoul National University Hospital. Twenty seven cases considered to be failed in hip nailing were analysed radiologically, and following results were obtained. 1. The incidence of failed hip nailing was most frequent in the fifties with average age of 54. 6 years, which seemed somewhat younger than that of the hip fracture. There was no sexual difference. 2. Hip nailings were failed in 23 cases of the femoral neck fractures and in 4 cases of the trochanteric fractures, which revealed respectively 52.3% and 8.2% of failure. Among these the technical failure was 22.7% in femoral neck fractures and 6.1% in trochanteric fractures. 3. Among the various fixation devices, Smith-Petersen nail or hip screws which has no side plate to fix the shaft rigidly showed high failure rates. 4. In all cases the etiology of the failed hip nailing was functional, such as failure of reduction, failure of fixation, penetration of the head, avaseular necrosis, infection, and inadequate postoperative management. 5. Most cases of femoral neck fractures which was not achieved near anatomical reduction was failed in fixation. 6. Too long or short nails showed high failure rates. In view point of this, hip nail should fix the lateral cortex, calcar femorale and center of subchondral bone, even in the trochanteric fracture. So devices such as heavy compression sliding nail or multiple pinning were more desirable to achieve complete fixation. 7. When, in the fresh fractures of the femur neck cannot be reduced to an anatomical or slightly overcorrected position, endoprosthesis should be considered seriously. When the joint is abnormal, the total hip arthroplasty can reduce morbidity and mortality, and also shorten the hospitalization.
Aged
;
Arthroplasty, Replacement, Hip
;
Clinical Protocols
;
Early Ambulation
;
Femoral Neck Fractures
;
Femur
;
Femur Neck
;
Fracture Healing
;
Head
;
Hip Fractures
;
Hip
;
Hospitalization
;
Humans
;
Incidence
;
Joints
;
Mortality
;
Necrosis
;
Orthopedics
;
Pneumonia
;
Postoperative Care
;
Pressure Ulcer
;
Seoul
;
X-Ray Film
5.Treatment of the Patella Using Gracilis as a Static and Dynamic Stabilizer: A Case Report
Han Koo LEE ; Moon Sang CHUNG ; Sang Bin OH
The Journal of the Korean Orthopaedic Association 1983;18(2):367-370
More than 100 surgical methods were described as the treatment of recurrent patella dislocation. These can be divided into two categories, the proximal, dynamic reconstruction and the distal, static reconstruction. We treated a case of recurrent patella dislocation with a new method, using gracilis. The tendon of gracilis was dissected and cut at the point about 7cm proximal to the insertion. A 'H' shaped slot was made subperiosteally in the anterior surface of patella. The both ends of cut gracilis tendon were imbedded into the 'H' shaped slot of patella and sutured. So the gracilis tendon could act as a static and dynamic stabilizer. The result was excellent at 1 year follow up.
Dislocations
;
Follow-Up Studies
;
Methods
;
Patella
;
Tendons
6.The Effects of the Flexible and Rigid External Fixation on the Fracture Healing: An Experimental Study in Rabbits
Han Koo LEE ; Moon Sang CHUNG ; Ki Sir KANG
The Journal of the Korean Orthopaedic Association 1984;19(3):517-523
In order to compare the effects of the flexible external fixations with the rigid one on fracture healing, rabbits tibiae were fractured surgically and each fracture were immobilized with external devices using graphites (the group I), plastics (the group II) and stainless steel (the group III). At six weeks after fracture, clinical and radiological union rates in group I, II and III were 91% 73% and 60% respectively. The rabbits tibiae were load in 4-point bending test to determine the mechanical properties of the fracture healing. The means and standard errors of maximum bend moment of the fractured tibiae were 11. 30±2.33kg.f. cm., 8.55±2.02kg.f. cm. and 9.79±2.09kg.f. cm. in group I, II and III respectively. These data may suggest that a certain amount of the flexibility (ex, graphite) or motion is better than the rigidity (ex, stainless steel) in fracture healing by the method of the external immobilization).
Fracture Healing
;
Graphite
;
Methods
;
Plastics
;
Pliability
;
Rabbits
;
Stainless Steel
;
Tibia
7.Basic Study on the Effect of Korean Ginseng upon Fracture Healing of the Bone
Han Koo LEE ; Moon Sang CHUNG ; Gang Sup YOON
The Journal of the Korean Orthopaedic Association 1984;19(3):483-491
This study was planned by the necessities of basic information about the effects of Korean Ginseng upon fracture healing and biomechanical properties of bone. Three hundred white mice were used for this study, and we could have tested the biomechanical properties in one hundred and nintyfour. The bones of the white mice were evaluated by testing gross stability, radiological appearance, and biomechanical properties. It appears that Korean Ginseng has an excellent effect upon early phase of fracture healing of the bone. The summary of this study are as follows: 1. With near maximal dose, Korean Ginseng showed very excellent effect upon early phase of the fracture healing. 2. There was no apparent effect on remodeling phase of the fracture healing with Korean Ginseng of near maximal dose. 3. Korean Ginseng appeared to have no effect on fracture healing with minimal dose. 4. Upon biomechanical properties of the bone, Korean Ginseng was seemed to be effective with near maximal dose. But, there was no definite evidence for that.
Animals
;
Fracture Healing
;
Mice
;
Panax
8.Free Vascularized Bone and Joint Transplantaion Using Microsurgery
Moon Sik HAHN ; Han Koo LEE ; Moon Sang CHUNG ; Jai Myung JEON ; Hee Joong KIM
The Journal of the Korean Orthopaedic Association 1983;18(2):311-321
We have experienced 11 cases of large bony defect that were treated using microsurgery since 1981. Free vascularized bone transplantation was performed in 8 of them, vascularized bone transposition in 2 cases, and free vascularized joint transplantation in the remaining 1 case. The causes of the large bony defect were primary bone tumor (4 cases), congenital pseudoarthrosis (3 cases), open comminuted fracture (2 cases), sequela of osteomyelitis (1 case), and post-traumatic ankylosis of PIP joint of second finger (1 case). As a donor, fibula was used in 8 cases, iliac crest in 1 case, rib in 1 case and in the remaining 1 case, the second M-P joint of foot was transplanted. In 9 of 11 cases, successful result was obtained and 2 cases were failed because of vascular damage following tibial lengthening in one case and infection on the grafted area in the other one. From the above data and review of articles, following conclusions were obtained. 1. Fibula is thought to be the most appropriate donor for the large bony defect in the extremity, especially in lower extremity, but the donor site must be determined according to the anatomical and physilogical condition of the patient. 2. After mechanical lengthening of the extremity, it is recommened to perform the microvascular surgery after sufficient time for the recovery of vascular damage. But further studies are required for the identification of the change in the vascular tissue following stretching and its recovery time. 3. Progression of the ossification in the epiphysis of transplanted iliac crest was observed and this finding proposed us the idea that the epiphyseal plate injury or leg length discrepancy will be able to be treated with free vascularized epiphyseal plate transplantation and the reconstruction of the destroyed joint of growing children will be possible using free vascularized joint transplantation. 4. As the technique become more popular, the free vascularized bone transplantation is being used for the reconstruction of the extremity more frequently, but it seems to be wise to restrict its indication to cases which are impossible to be treated with more simple methods such as vascularized bone transposition or pedicled bone graft.
Ankylosis
;
Bone Transplantation
;
Child
;
Epiphyses
;
Extremities
;
Fibula
;
Fingers
;
Foot
;
Fractures, Comminuted
;
Growth Plate
;
Humans
;
Joints
;
Leg
;
Lower Extremity
;
Microsurgery
;
Osteomyelitis
;
Pseudarthrosis
;
Ribs
;
Tissue Donors
;
Transplants
9.Clinical Application of Digital Subtraction Angiography.
Man Chung HAN ; Jae Hyung PARK ; Moon Hee HAN ; Byung Koo MIN ; Seung Jee LEE
Korean Circulation Journal 1983;13(1):91-96
Digital subtraction angiography(DSA) was made in 72 patients at department of radiology, Seoul National University hospital from February 1982 to January 1983 with our system, SRM-II, developed by cooperation of department of medical engineering, Seoul National University Hospital. The results were as follows; 1. In the total 72 cases, vascular disease was 28 cases in which aortic disease including Takayasu's aortitis was 18 cases. Others were vascular tumors in 32 cases and various conditions such as renal donor and artificial arteriovenous shunt. 2. Extent of the lesion was well delineated especially in aortic disease in cluding 8 cases of Takayasu's aortitis, 6 cases of aortic aneurysm and 2 cases of Behcet's syndrome. 3. DSA can be done to outpatient without admission because of its simplicity and non-invasiveness. DSA is useful especially in the evaluation and follow-up of vascular disease and the diagnostic value is expected to grow continuously according to the renewal of system.
Angiography, Digital Subtraction*
;
Aortic Aneurysm
;
Aortic Diseases
;
Aortitis
;
Behcet Syndrome
;
Follow-Up Studies
;
Humans
;
Outpatients
;
Seoul
;
Tissue Donors
;
Vascular Diseases
10.Retained Intrahepatic Stones' Comparative Study of T-tube Cholangiography, Selective Cholangiography, and Computed Tomography.
Byung Ihn CHOI ; Joon Koo HAN ; Man Chung HAN ; Yong Moon SHIN
Journal of the Korean Radiological Society 1994;30(3):493-498
PURPOSE: To evaluate the diagnostic accuracy of T-tube cholangiography(TTC), selective cholangiography (SC) and noncontrast CT(NCT) in the evaluation of intrahepatic stone disease. MATERIALS AND METHODS: We retrospectively analyzed the radiological findings of these methods in thirty patients with intrahepatic stones proved by percutaneous removal. Findings of each procedure were reviewed and correlated with findings of stone removal procedure. RESULTS: Detection of stones was possible in 87. 0% for TTC, 90. 0% for SC, 96. 7% for NCT(p > 0.05). Selective cholangiography was as good as or superior to 1-I'C in determining the presence and extent of the stones in all patients(p < 0. 01). NCT was better than SC in 9;as good as SC in 18;inferior to SC in 3 patients in determining the extent and location of the stones(p > 0.05). Of 12 patients who had additional findings such as biliary cirrhosis or accompanied cholangiocarcinomas, only NCT could detect the lesions in 11 patients. CONCLUSION: Although there was no statistically significant difference between NCT and SC, one procedure sometimes gave valuable informations for interventional procedure which the other could not. Thus we conclude that both procedures are complementary studies and should be done in all patients who are subjected to biliary intervention.
Cholangiocarcinoma
;
Cholangiography*
;
Humans
;
Liver Cirrhosis, Biliary
;
Retrospective Studies