1.The Esthetic Upper Incisor Position in Korean Adult Female.
Bo Young YOO ; Hyun Shik HWANG ; Jong Chul KIM
Korean Journal of Physical Anthropology 1994;7(2):219-229
Esthetic is one of the prime goal of the orthodontic treatment. The upper incisor position in important because it is decisive in balanced smile. This study was attempted to obtain the standards and equations on the esthetic upper incisor position. Lateral cephalometric radiographs of 66 Korean young adult females who were candidates of Miss Korea Beauty Contest were traced, measured and statistically analyzed. The results were as follows ; 1. The mean and standard deviation of the measurement for upper incisor position were obtained in the Korean Beauty. 2. Among the measurements of the axis of upper incisor, 1 to SN and 1 to FH were high1y correlated with FH-MP, ANB, FH-N Pag, Y-axis, but 1 to SN (Is-Pr) to present axial inclination of labial surface of upper Incisor didn't have any correlation with the measurements for dentofacial pattern. 3. Among the measurements for the vertical position of upper incisor, 1 to stom had low correlation with to measurements for dentofacial pattern and 1 to PP(mm) was highly correlated with the measurements for facial growth direction. 4. Sixteen multiple regression equations were established to predict upper incisor position balancing with dentofacial pattern. 5. It does not have much power of persuasion to predict esthetic upper incisor position from the measurements for dentofacial pattern.
Adult*
;
Beauty
;
Female*
;
Humans
;
Incisor*
;
Korea
;
Persuasive Communication
;
Young Adult
2.Serial Bone Scans According to Fracture Healing in Tibia
Myung Chul YOO ; Seong Geun JANG ; Yoon Gwon HWANG
The Journal of the Korean Orthopaedic Association 1984;19(3):492-500
Total 40 cases of serial bone scans with Tc99-m-MDP performed on less than 24 hour, 2nd day, 3rd day, 5th day, 1 week, 4 week, 12 week and 1 year respectively after fractures in tibia were analysed. All 5 cases of bone scans performed within 24 hour after injury showed increase in generalized tracer uptake and 3 cases of them(60%) showed localized increase in tracer uptake at the fracture sites. The earliest bone sean performed 9 hour after injury showed generally and locally increased uptake at the fracture sites. All 5 cases of bone scan performed 1 year after injury sinowed localized increased uptake at the fracture sites and 2 cases of them (40%) showed generalized increase in tracer uptake. Bone scans performed 12 week after injury showed the most outstanding increase in generalized and localized tracer uptake. Bone scans performed 1 year after injury showed decreased amount of generalized increase in tracer uptake (but more increased uptake than normal) but the localized increase in traccer uptake at the fracture sites was observed persistently. More study should be needed to clarify the corelationship between the presence of cold spots during the fracture healing and the union of the fractures. It is difficult to differentiate the old fractures to fresh fractures with the bone scans performed within 1 year because of persistent increase in tracer uptake to 1 year after fracture.
Fracture Healing
;
Tibia
;
Tibial Fractures
3.Sputum Smear Conversion During mDOT (Modified Directly Observed Treatment).
Taik Gun HWANG ; Soon Deok KIM ; Se Hwa YOO ; Yoo Chul SHIN
Tuberculosis and Respiratory Diseases 2004;56(5):485-494
BACKGROUND: To assess the effects of mDOT implementation on sputum smear conversion for AFB (Acid fast bacilli) positive pulmonary tuberculosis patients, modified Directly Observed Treatment (mDOT) was started on October 8th 2001 at a health center in Seoul. mDOT was defined through weekly interviewing and supervising of a patient by a supervisor (doctor, nurse, or lay health worker). The sputum smear conversion of a mDOT group was compared with that of a self-medication (self) group. METHODS: This study included 52 AFB positive pulmonary tuberculosis patients registered at a health center in Seoul between October 8th 2001 and April 23rd 2002. 24 and 28 patients were enrolled in the mDOT and self medication groups, respectively. Paired (1:1) individual matching, by gender, extent of disease, relapse and age-matching variables, was performed between the two groups, resulting in 20 paired matches. This prospective study was planned as an unblinded, non-randomized quasi- experimental pilot project. Outcomes were identified from results of sputum smear examinations for AFB in both groups at 2 weeks, and 1 and 2 months. The paired matching data were analyzed using the SAS program version 8.1 by McNemar test. RESULTS: At the end of 2 weeks of treatment, the sputum smear conversion of the mDOT group was somewhat higher than that of the self medication group (78.57 vs. 50%, p-value=0.289), and after 1 month of treatment no statistically significant difference was shown between the two groups (83.33 vs. 50, p-value=0.125). At the end of 2 months of treatment (initial intensive phase), the sputum smear conversions of the mDOT and self groups were 95 and 75%, respectively (p-value=0.219). CONCLUSIONS: The implementation of mDOT did not result in clinically significant increases in the sputum smear conversion at 2 weeks, and 1 and 2 months compared with that of the self medication group. However, the increases experienced might contribute to diminishing the infectious period of AFB positive patients, and this approach may act as a guide for a specific group of patients. In this study, mDOT was performed for one hundred percent of the intensive treatment phase. It can also be an effective treatment for pulmonary tuberculosis patients, and may be useful for some high risk tuberculosis patients.
Humans
;
Pilot Projects
;
Prospective Studies
;
Recurrence
;
Self Medication
;
Seoul
;
Sputum*
;
Tuberculosis
;
Tuberculosis, Pulmonary
4.A Case of Hemolyic Disease of Newborn Caused by Anti-c and Anti-E Antibody.
Chul Hong KIM ; Hwang Jae YOO ; Ik Jin SONG ; Jae Hong PARK ; Young Tak YIM
Korean Journal of Perinatology 1997;8(4):433-436
Hemolytic disease of newborn due to Rhesus incompatibility occurs mostly by anti-Rh(D) antibodies. But recently, because of Rh(D) immune globuin prophylaxis, Rh(D) incompatibility is decreased and importance of minor group incompatibility is increasing. The majority of minor blood group incompatibilities are anti-c, anti-E or anti-Kell, but hemolytic diseases caused by combination of these antibodies are relatively rare. The 21 day-old male neonate was admitted because of pallor and poor feeding for 2 days. Laboratory data showed severe normochromic and normocytic anemia with increased reticulocyte and bilirubin. Patient's and his mothers blood type was B, Rh(D) positive. Minor blood groups of mother's and sons were different and anti-c and anti-E antibody were detected in mother's serum. After transfusions of two times with anti-c and anti-E free B, Rh(D) positive blood, the baby was discharged at 11th hospital day with good general condition.
Anemia
;
Antibodies
;
Bilirubin
;
Blood Group Antigens
;
Blood Group Incompatibility
;
Erythroblastosis, Fetal
;
Humans
;
Infant, Newborn*
;
Male
;
Mothers
;
Pallor
;
Reticulocytes
5.Sacral pressure sore treatment with gluteal perforator-based flap.
Gyu Suk HWANG ; Won Min YOO ; Eul Je CHO ; Kwan Chul TARK ; Beyoung Yun PARK
Journal of the Korean Society of Plastic and Reconstructive Surgeons 1998;25(4):673-678
Sacral pressure sores have been treated by a variety of surgical methods. complete treatment needs wide excision and coverage with healthy tissue which has constant and sufficient blood supply. Use of gluteus maximus muscle flap with or without overlying skin is a revolutionary method because of the reliability of blood supply. However, it is technically a little bit complicated, and future reconstruction for recurrent decubitus is especially limited in paraplegic patients. The development of gluteal perforator-based flap with para-sacral perforator introduce a new treatment modality for the sacral pressure sores. Total 10 cases of sacral pressure sores were treated with gluteal perforator-based flap. There were minimal postoperative complications except wound dehiscence in one case. This flap has a many advantage of no transection or sacrifice of the gluteus maximus muscle, elevation time for the flap is short, reliable blood flow of the perforator, large rotation arc and no post-operative hindrance to walking in patients who are not paraplegic. The disadvantages of this perforator-based flaps are the anatomical variation in the location of perforators and the need for technically careful dissection.
Humans
;
Postoperative Complications
;
Pressure Ulcer*
;
Skin
;
Walking
;
Wounds and Injuries
6.Contracture of the Hip Secondary to Fibrosis of the Gluteus Maximus Muscle
Myung Chul YOO ; Sang Eun LEE ; Jung Soo HAN ; Ill Hyung CHO ; Yoon Gwon HWANG
The Journal of the Korean Orthopaedic Association 1985;20(6):1107-1110
Four patients were treated who had limited flexion of the hips and various degrees of contracture of the abduction and external rotator muscles because of fibrosis of the gluteus maximus muscle. Each patient had a typical restriction of motion such that an affected hip could not be flexed in the usual sagittal plane, but had to be flexed in abduction. Genetic, congenital and postnatal factors have been suggested as the cause of fibrosis of gluteus maximus muscle. Three of the 4 patients reported here are of congenital origin and another one is of postnatal factor repeated intramuscular injections. Excellent correction of the hip contracture was achieved in all patients by division of the fibrotic bands.
Contracture
;
Fibrosis
;
Hip Contracture
;
Hip
;
Humans
;
Injections, Intramuscular
;
Muscles
7.Shoulder Arthrodesis for Improvement of Improvement of Function of Upper Extremity
Myung Chul YOO ; Duke Whan CHUNG ; Jung Soo HAN ; Hwang Keon CHO ; Jae Sung AHN
The Journal of the Korean Orthopaedic Association 1988;23(4):1031-1038
The shoulder fusion is one of the good method to relieve pain, improve the function and stabilize the flail shoulder joint. But recent advance of arthroplasty, the procedure is less popular. Authors studied and analized 23 patients who received shoulder arthrodesis from Aug. 1978 to Aug. 1986 and reported functional outcome after shoulder arthrodesis. Among twenty three patients, brachial plexus palsy were eighteen, upper extremity residual poliomyelitis in three and shoulder joint turberculosis in two respectively. Postoperative follow up was 12 months to 9 years and 6 months, average being 2 years and 6 months. It took 14.4 weeks in average for shoulder arthrodesis. The postoperative abduction fusion angle was 33.8 degrees in average(20 degrees to 50 degrees). The active abduction after shoulder fusion was mean 51.8 degrees(20 degrees to 85 degrees). The abduction fusion angle between 20 degrees and 40 degrees was presented satisfactory results in the point of pain relief, functional assessment and patients satisfaction. High abduction fusion angle(more than 40 degrees) revealed pain around the fused shoulder area. The combined extra and intraarticular arthrodesis revealed better results. The Saber-cut approach was more valuable for secondary elbow reconstruction than Henry approach.
Arthrodesis
;
Arthroplasty
;
Brachial Plexus
;
Elbow
;
Follow-Up Studies
;
Humans
;
Methods
;
Paralysis
;
Poliomyelitis
;
Shoulder Joint
;
Shoulder
;
Upper Extremity
8.Treatment of the Acetabular Fracture
Myung Chul YOO ; Jin Hwan AHN ; Hwang Gun CHO ; Hee Soo SHIN
The Journal of the Korean Orthopaedic Association 1988;23(5):1302-1312
Fractures of the acetabulum are relatively uncommon, but because they involve a major weight bearing joint in the low extremity, they assume great clincal importance. The principle of management for this fracture is as for any other displaced intra-articular fracture, nsmely that anstomical reduction is essential for good long term function of the obtained by closed means, but more often, open reduction followed stable internsl fixation allowing early active or passive motion will be required. In the past, the achievement of this ideal, that is anatomical reduction, has been difficult because technical problems such as those caused by complicated anatomy, difficulty with surgical exposure, severe comminution in many cases, and major associated injuries. We classified the acetabular fractures of 71 patients with 72 hips from 1980 to 1987 and clinical analysis was performed on 51 hips allowing the possible follow-up evaluation beyond the 12 months. Following results were obtained. 1. The most common associated injury was the pelvic bone fracture(25.5%). 2. The most common types of fracture on each classification were posterior wall fracture in Letournel(37.5%), posterior acetabular fracture in Rowe & Lowell(42.3%), central fracture- dislocation without involving of weight bearing dome of acetabulum in Carnesale(23.9%). 3. According to calssification method, the interpretation for characteristics of fracture type and frequency of acetabular fracture was very different each other. 4. The Leournels classification was relatively simple and could contain with many types of fracture and was helpful to determine the index of treatment. 5. The prognosis of linear undisplaced fracture and posterior fracture was better than acetabular medial, superior and bursting fracture in both conservative and operative treatment. 6. The posterior wall fracture with widely displaced fracture or joint instability, acetabular dome fracture, intraarticular fragment was absolute indication for operative treatment. 7. The treatment result and prognosis was influenced to the accurate classification of fracture type, anatomical reduction and rigid internal fixation.
Acetabulum
;
Classification
;
Dislocations
;
Extremities
;
Follow-Up Studies
;
Hip
;
Humans
;
Intra-Articular Fractures
;
Joint Instability
;
Joints
;
Methods
;
Pelvic Bones
;
Prognosis
;
Weight-Bearing
9.Heterotopic Ossification in Abdominal Incision: A Case Report.
Yoon Sik YOO ; Kung Sook NAM ; Im Kyung HWANG ; Heung Chul KIM
Journal of the Korean Radiological Society 2001;45(2):191-193
Heterotopic ossification in abdominal incision is a rare post-surgical sequala and a subtype of myositis ossificans traumatica. Recognition of this rare condition is important because it may be misinterpreted as a retained foreign body or incisional neoplastic recurrence. We report a case involving a 59-year-old man who presented with a palpable epigastric mass and pronounced fatigability.
Foreign Bodies
;
Humans
;
Middle Aged
;
Myositis
;
Myositis Ossificans
;
Ossification, Heterotopic*
;
Recurrence
10.The Rh(D) RBC Antigen Density Measurement by Flowcytometry.
Kap No LEE ; Chae Seung LIM ; Dae Chul KIM ; Young Kee KIM ; Doo Sung KIM ; Yoo Sung HWANG
Korean Journal of Blood Transfusion 1996;7(2):173-179
BACKGROUNDS: The Rh antigens are important m clinical practice. The classification of Rh phenotype is usually based on the antigen detection done by conventional serologic method, but it has many limitation such as delicate grading of antigen expression. Recently, Flowcytometry has been introduced in immunohematology to detect and quantitate cell bound immunoglobulins to assess blood cell antigens and related antibodies. So, we tried these method to detect Rh(D) antigen and measure its density and evaluated the possibility of clinical usage. MATERIALS AND METHODS: We performed a flowcytometric analysis for the expression of D antigen in D-positive, negative and weak D group in indirect immune fluorescence assay by using polyclonal antibodies. We measured the intensity of immunofluorescence as a degree of antigen density and analysed the difference of mean channel fluorescence value(MCF) among these groups. RESULTS: Weak D groups had the lower fluorescence than D-positive group, while D-negative sample showed the same fluorecence as negative ntrol. The difference of fluorescence intensity of D antigen between that of C antigen were not observed and were statistically insignificant. CONCLUSION: Flowcytometry appear to be a good tool for antigen density measurement in immunohematologic areas and shows the possibility of application to other aspect.
Antibodies
;
Blood Cells
;
Classification
;
Fluorescence
;
Fluorescent Antibody Technique
;
Immunoglobulins
;
Phenotype