1.A Clinical Study of Small Incision Trabeculectomy.
Suk Han KIM ; Dong Won PARK ; Sae Heun RHO
Journal of the Korean Ophthalmological Society 2000;41(12):2603-2610
No Abstract Available.
Trabeculectomy*
2.The Lifestyle Factors in Relation to Prostatism in BPH Awareness Program.
Sung Han LEE ; Bong Suk SHIM ; Sung Won KWON
Korean Journal of Urology 2000;41(7):856-860
No abstract available.
Life Style*
;
Prostatism*
3.Analysis of Femoral cortical Indices in Cementless Femoral Stem
Kwang Suk LEE ; Sang Won PARK ; Seung Beom HAN
The Journal of the Korean Orthopaedic Association 1995;30(3):449-458
Preperative radiologic indices, such as cortical index of Engh, morphological cortical index of Sportono and Romagnoli, canal flare index of Noble, and their relationship to the postoperative canal filling, femoral stem fitness, stability and clinical result at last follow up were analyzed in 111 hips of 96 patients treated with bipolar or total hip arthroplasty at the Department of Chthopedic Surgery, Korea University Hospital, between January 1985 and May 1993. The results obtained were as follows: 1. The cortical index had no correlations with age, metaphyseal filling and clinical result but isthmic filling was proportional to the cortical index. In femoral stem fitness and stability, most cases of press fit and optimal stability were obtained in group 3 and 4 that have thick cortex. 2. The morphological cortical index had no correlation with age, canal filling and clinical results. But it was proportional to the postoperative femoral stem fitness and stability. 3. The canal flare index had no correlation with age. The metaphyseal filling was increased in the stove piped canal group(less than 3.0 canal flare index), but isthmic filling was increased in normal canal group(3.0-4.7 canal flare index). The most cases of press fit and optimal stability were obtained in normal canal group. More satisfactory clinical results were obtained in nomal canal group. Above results suggest that straight type of cementless femoral component could get better press fit fixation, postoperative stability and more satisfactory clinical results in the cases of cortical index larger than 2.0, mophological cortical index larger than 2.7 and canal flare index larger than 4.0 but metaphyseal filling is unsatisfactor.
Arthroplasty
;
Arthroplasty, Replacement, Hip
;
Follow-Up Studies
;
Hip
;
Humans
;
Korea
4.Acetabular Revision with Hemispherical Porous Coated Prosthesis.
Chang Dong HAN ; Ki Won KANG ; Woo Suk LEE
The Journal of the Korean Orthopaedic Association 1999;34(1):23-30
PURPOSE: To report the results of acetabular revisions performed with the cementless, hemi-spherical porous coated component supported by viable host bone and minimal allobone graft for acetabular deficiencies. MATERIALS AND METHODS: A retrospective study was completed for 22-revision acetabular components, using the cementless hemispherical porous coated prosthesis and minimal femoral head allograft. There was an average follow up of 48 months, with a range of 24 to 84 months. Radiographic measurements were performed in several aspects; cup-allograft contact, inclination, vertical and horizontal migration of acetabular cup, and acetabular zone by modified zone of DeLee and Charnley, in which location, size and progression or non-progression of radiolucent zone were recorded. The acetabular deficiencies were classified by the American Academy of Orthopaedic Surgeons Committee and were type I in 2 hips (9%), type II in 12 hips (55%), and type III in 8 hips (36%). Twenty acetabular cup cases of Harris-Galante II were used in this study, 1 case of Harris- Galante I, and 1 case of Duraloc. The average size of the cup was 57(44-66) mm. RESULTS: The average cup-allograft contact was 72.5% in 19 cases and we could not differentiate the margin between the host bone and the allograft in 3 cases. There was no significant vertical or horizontal migration of acetabular cup. Radiolucent zones in follow-up radiographs were 8 cases in zone IA, 4 cases in zone IB, 4 cases in zone IIB, 9 cases in zone IIC, 8 cases in zone IIIA, and 7 cases in zone IIIB. One case showed 2 mm radiolucent area in zone IIC and another case showed 3 mm radiolucent area in zone IIB, but the radiolucencies were not progressive. The remaining cases showed less than 0.5 mm radiolucent area or no radiolucent zone. The average period of bony incorporation was 13.1 months. CONCLUSIONS: We suppose that acetabular revision with the cementless hemispherical porous coated cup supported by viable host bone and minimal bone graft produces good results.
Acetabulum*
;
Allografts
;
Follow-Up Studies
;
Head
;
Hip
;
Prostheses and Implants*
;
Retrospective Studies
;
Transplants
5.Statistical Analysis of Twin Pregnancy.
Suk Hee JUNG ; Sung Tae HAN ; Woo Chul JUNG ; Young Suk KIM ; Sung Won LEE ; Yong CHO ; Eu Sun RO
Korean Journal of Perinatology 1998;9(4):381-388
Twin pregnancies represent a high risk obstetric population with perinatal morbidity and mortality much greater than that of singleton pregnancies. A retrospective dinical evaluation was attempted to analyse 211 cases of twin pregnancies in Chunchon Sacred Heart Hospital of Hallym University from Jan. l. 1988 to Dec. 31. 1997. The results were as follows. 1) The incidence of twin pregnancy was 1 in 93.9 deliveries. 2) The age of mother ranged from 19 to 42 years and predominant age group was 26-30 which covers 43.1% of all. 3) Nullipara was 61.1% and multipara was 38.9%. 4) The predominant gestational age group at delivery was 36-37 weeks, 33.2%. 5) In presentation, both cephalic combination was 46.4%, cephalic-breech was 26.1%. 6) The birth weight was less than 2500gm in 64.9% of the 1st babies and 70.6% of the 2nd babies, respectively. 7) The rate of cesarean section was 89.0%. The indications of cesarean section were malpresention (48.9%), elective cesarean section(38.8%), and toxemia(9.0%). 8) In 23 cases of vaginal delivery, the average duration of labor was 7.0 hours and 43.5% of 2nd baby was delivered within 5 min after 1st baby delivery, 9) The most frequent maternal complications during pregnancy were anemia(36.0%), preterm labor(34.6%) and preeclamsia(17.5%). 10) The perinatal mortality rate of the first and second twins was 10.4% and 12.3%, respectively. The main causes of perinatal death were prematurity(52.1%) and stillborn(22.9%). 11) Both female was 43.6%, both male was 39.3%, and opposite sex was 17.1% in infant.
Birth Weight
;
Cesarean Section
;
Female
;
Gangwon-do
;
Gestational Age
;
Heart
;
Humans
;
Incidence
;
Infant
;
Male
;
Mortality
;
Mothers
;
Perinatal Mortality
;
Pregnancy
;
Pregnancy, Twin*
;
Retrospective Studies
6.Clinical Observation on Pediatric Urolithiasis.
Korean Journal of Urology 1977;18(4):329-335
A clinical observation was made on 13 cases of pediatric urolithiasis admitted to the Department of Urology. Han Il Hospital during the period from Jan., 1971 to Dec., 1975, and the following results were obtained. 1) Among 78 cases of pediatric in-patient, 13 cases were pediatric urolithiasis, 10 cases were male and 3 cases were female. 2) Age distribution was between 2 and 13 years, showing the highest incidence in 7yrs (23.0%). 3) The etiology of urinary tract stone: 2 cases in congenital anomaly, 8 cases in idiopathic, 1 case in foreign body, 1 case in immobilization, 1 case in recurrent infection. 4) Locational distribution of urinary tract stone was 5 cases in ureter, 4 cases in bladder, 3 cases in urethra, 2 cases in kidney. 5) The largest stone extracted was 2.0cm in size. 6) The common clinical manifestation of upper urinary tract stone included flank pain (71.4). hematuria (57. 1%) and lower urinary tract stone included painful urination (85. 7%), frequent urination (71.4%). 7) The most frequent method of treatment was lithotomy(57%). 8) The results of chemical analysis of 9 urinary calculi showed ca. oxalate in 33.3%, cal. Phosphate + oxalate in 33.3%.
Age Distribution
;
Female
;
Flank Pain
;
Foreign Bodies
;
Hematuria
;
Humans
;
Immobilization
;
Incidence
;
Kidney
;
Male
;
Ureter
;
Urethra
;
Urinary Bladder
;
Urinary Calculi
;
Urination
;
Urolithiasis*
;
Urology
7.Study on Abdominal Sequelae after Free TRAM Flap or Rectus Abdominis Muscular Free Flap Operation.
Kyung Won MINN ; Sang Baek HAN ; Yoon Ho LEE ; Suk Wha KIM
Journal of the Korean Society of Plastic and Reconstructive Surgeons 1999;26(2):257-262
The TRAM flap provides the safe creation of a durable, soft, natural-appearing breast mound and has thus become the most popular method of breast reconstruction. On the other hand, the rectus muscle can be used as a good donor site for a flap reconstruction in trauma or osteomyelitis cases on the lower extremity. The abdominal sequelae, including abdominal wall dysfunction after free rectus muscle transfer, was evaluated. Thirty-seven patients underwent free TRAM (n=29) or rectus abdominis muscular free flap(n = 8) operations between 1994 and 1997. In harvesting of the TRAM flap, a muscle-splitting technique was used and thus one-quarter of the muscle was preserved. In rectus muscular free flap, the entire width of the rectus abdominis muscle was harvested. Among the 37 patients, 26 patients (20 free TRAM flap and 6 rectus muscular free flap) were studied, for they were followed up postoperatively for at least 6 months and had provided preoperative data of abdominal strength. Cosmetic results of the abdomem were appraised by four independent judges on photographs taken of 26 patients. The global appearance of the abdomen was rated as "natural" in 75%. The scar on the umbilicus and lower abdomen was rated as acceptable or not visible in 65%. The replies to questionnaires were analyzed Patient self-assessment showed general satisfaction. In 24 of 26 answers, they said they would recommend the operation to others, and 70% of the patients found their abdominal strength and sports ability the same or improved. Thirty percent of the patients complained that back pain developed or became aggravated after surgery. Abdominal muscular strength was tested both preoperatively and 6 months to 1 year period after surgery according to Lacote. The abdominal wall function was impaired, especially in the upper rectus and external oblique muscle. In conclusion even though the abdominal sequelae after free TRAM or rectus muscular free flap reconstruction should not be urderestimated, no problem of clinical significance was encountered, and patients showed a high degree of satisfaction with the operation
Abdomen
;
Abdominal Wall
;
Back Pain
;
Breast
;
Cicatrix
;
Female
;
Free Tissue Flaps*
;
Hand
;
Humans
;
Lower Extremity
;
Mammaplasty
;
Osteomyelitis
;
Surveys and Questionnaires
;
Rectus Abdominis*
;
Self-Assessment
;
Sports
;
Tissue Donors
;
Umbilicus
8.FRACTURE TOUGHNESS OF VARIOUS CORE MATERIALS.
Shin Won LEE ; Sun Hyung LEE ; Jae Ho YANG ; Jung Suk HAN ; Jai Bong LEE
The Journal of Korean Academy of Prosthodontics 2001;39(6):682-697
This investigation evaluated the fracture toughness (KIC) of eight currently available core materials, and relate the fracture toughness value to fractography analysis and surface characteristics using a atomic force microscope (AFM). Single-edge notched (SEN) test specimens (n=10) and compact tension (CT) test specimens (n=10) were prepared conforming to the ASTM Standard E-399 for a high copper amalgam, three composite core materials (Core-Max II, Core Paste, Bisfil Core), two reinforced composite core materials (Ti-Core, Ti-Core Natural), a resin-modified glass ionomer core material (Vitremer), and a conventional glass ionomer core material (Ketac-Molar). The specimens were tested with an Instron Universal Testing Machine. The maximum loads were measured to calculate the fracture toughness (KIC). Thereafter, fracture surfaces of SEN specimens of each material were investigated for fractography analysis using scanning electron microscope. And, disc-shaped specimens with 1mm thickness were fabricated for each material and were investigated under AFM for surface morphology analysis. The results were as follows : 1. Bisfil Core showed the highest mean fracture toughness regardless of test methods. 2. For the tooth-colored materials, Ti-Core Natural exhibited the highest fracture toughness. 3. Ketac Molar showed a significantly low fracture toughness when compared with the amalgam and the composite resin core materials (p<0.05). 4. The fracture toughness values obtained with the single-edge notched test, except Ketac Molar, were higher than those obtained in the compact tension test. 5. SEM revealed that the fracture surface of high fracture toughness material was rougher than that of low fracture toughness material. 6. AFM revealed that the surface particles of the composite resins were smaller in size, with a lower surface roughness than the glass ionomer core materials.
Composite Resins
;
Copper
;
Glass
;
Molar
9.An experimental study on the effect of intraoperative irradiation on the healing of anastomosed small intestine
Heung Suk SEO ; Ik Won KANG ; Sung Whan HA ; Man Chung HAN
Journal of the Korean Radiological Society 1983;19(1):15-22
To evaluate the influence of intraoperative irradiation on the healing of jejunal anastomosis, an experimentalstudy was undertaken using a total of 150 rats. The bursting pressure of the normal jejunum was obtained in groupI. Group II was subjected to resection and anastomosis, and group III was irradiated on the anastomosed jejunumwith a single dose of 1,000 rads. Healing process was evaluated by measuring bursting pressure of the anastomosedjejunum on each postoperative day from 2nd to 14th, and on 21 th day. Bursting pressure was tested by inflatingthe loop of gut with water, and bursting sites were observed. The resuls obtained are summarized as follows; 1.The bursting pressure of the anastomosed jejunum retained normal strength by the 7th postoperative day in thenonirradiated group, whereas by the 11th postoperative day in the irradiated group. 2. Irradiation caused delay inthe healing of anastomosis of the jejunum until the 10th postoperative day; but after then, there was nosignificant difference in bursting pressure between both groups. 3. In the jejunal segments with normal strength,bursting occurred exclusively at the non-anastomotic site in both groups; Bursting started along the mesentericborder in the non-irradiated group, whereas rupture usually occurred on the antimesenteric border in theirradiated group. in the jejunal segments with subnormal strength, bursting usually started on the mesentericborder of the anastomotic site in both groups. The results indicate that intraoperative irradiation with a singledose of 1,000 rads causes no harmful effect on the healing of anastomosis of the jejunum in rats. Therefore, thisstudy suggests the possibility of more effective clinical application of intraoperative irradiation.
Animals
;
Intestine, Small
;
Jejunum
;
Rats
;
Rupture
;
Water
10.A clinical and radiological observation of shoulder arthrography
Hwee Yul JANG ; Won Joo HUR ; Sang Suk HAN ; Byung Soo KIM
Journal of the Korean Radiological Society 1984;20(3):569-576
The authors analyzed 23 cases of shoulder arthrography performed at Busan National University Hospital and Inje Medical College Paik Hospital for about 2.5 years from March 1981 to Sept. 1983, both clinically and radiologically. The results obtained were as follows; 1. Of the 23 cases, 20 cases (87.0%) were male and 3 cases(13.0%) were female, and the most prevalent age group was second decade. 2. Right shoulder arthrography was performed in 16 cases (69.6%), and left in 7 cases (30.4%). 3. The number of cases which had had certain historyof trauma was 13(56.5%), and remainder of 10 cases (43.5%) had no history of trauma. 4. Frequent symptoms andsigns were pain in shoulder region in 16 cases (69.6%) and limitation of motion in 14 cases (60.9%). 5. On plainfilm findings, 18 cases(78.3%) were normal, and 5 cases (21.7%) were abnormal. 6. On shoulder arthrographicfindings, 16 cases (69.6%) were normal, and 7 cases (30.4%) were abnormal, Those abnormal cases were consisted of2 case (8.7%) of adhesive capsulitis, 2 cases (8.7%) of chronic shoulder dislocation, 1 case(4.3%) of rotator cuff tear, 1 case(4.3%) of loose bodies in joint cavity, and 1 case(4.3%) of rupture of biceps tendon sheath. 7. Among routine views of shoulder arthrography of normal cases, the external rotation view revealed axillary recess &biceps tendon more distinctly, and the internal rotaion view revealed subscapular bursa more clearly. In case of double-contrast shoulder arthrography, the contour & thickness of the medial segment of the contrast
Arthrography
;
Bursitis
;
Busan
;
Cartilage, Articular
;
Congenital Abnormalities
;
Female
;
Humans
;
Joint Capsule
;
Joints
;
Male
;
Methods
;
Neck
;
Rotator Cuff
;
Rupture
;
Shoulder Dislocation
;
Shoulder
;
Tears
;
Tendons