1.A Study On The Tensile Strength Between Metal Denture Base And Relining Materials.
Joon Seok LEE ; Ju Hwan LIM ; In Ho CHO
The Journal of Korean Academy of Prosthodontics 2000;38(1):1-11
Relining and rebasing are essential for long-term success and oral health in removable prosthodontics. Major features of failures between metal base and relining resins are adhesive failure due to lack of chemical bonding. The purpose of this study was to find a better metal primer and metal surface treatment method that enhance the bonding strength with relining resin materials. The surfaces of ticonium alloys were treated with 25micrometer sandblasting (Group A), stone wheel (Group B), stone wheel and EZ oxisor (Group C), 75micrometer sandblasting (Group D) and EZ oxisor application after 75micrometer sandblasting (Group E). They were subdivided into no primer application (Group I), MR bond application (Group II) and Metafast bonding liner (Group III). Then specimens were completed though being bonded with relining resins. The specimens were stored in 38degrees C water for 48 hours and tensile strength was measured using the universal testing machine. The results were as follows, 1. Primer application groups showed higher bond strength than no primer application group(p<0.05). 2. In comparison with primer application groups, MR bond group showed higher bond strength than Meta fast bonding liner application group(p<0.05). 3. In comparison with surface treatment methods. Bond strengths of group A and B were significantly different with group C, D, and E, and group C were significantly different with group D, and E in no primer application group(p<0.05). In primer application groups, group A, B, C were significantly different with group D and E(p<0.05). According to results of this study, Metal primer application and metal surface roughening were considered to be advantageous for relining of metal base dentures.
Adhesives
;
Alloys
;
Denture Bases*
;
Dentures*
;
Oral Health
;
Prosthodontics
;
Tensile Strength*
;
Water
2.Tetraparesis in ossification of the posterior longitudinal ligament of the cervical spine.
Sung Joon KIM ; Jae Lim CHO ; Gue Ho BAE
The Journal of the Korean Orthopaedic Association 1993;28(2):588-593
No abstract available.
Longitudinal Ligaments*
;
Spine*
3.Analysis of Emergency Department Medical Records of Teaching Hospitals in Korea.
Tai Ho IM ; Hun LIM ; Jong Ho LEE ; Hyung Goo KANG ; Moon Joon CHANG ; Kwang Hyun CHO ; Seok Joon CHANG ; Seung Ho KIM ; Sang Won CHUNG
Journal of the Korean Society of Emergency Medicine 2000;11(4):464-474
No abstract available.
Emergencies*
;
Emergency Service, Hospital*
;
Hospitals, Teaching*
;
Korea*
;
Medical Records*
4.Comparison of tuberculin skin test results and adverse reactions following BCG vaccination in various infant groups of different ages.
In Seung PARK ; Dong Ki HAN ; Ho Joon LIM ; Sung Hee OH ; Hahng LEE
Journal of the Korean Pediatric Society 1993;36(9):1300-1307
Most authorities including WHO recommended immununizing infants with BCG as early as possible in areas prevalent with tuberculosis, however the optimal time for immunization has not well been characterized. Therefore the investigation was undertaken by vaccinating various infant groups of different ages with BCG and subsequently evaluating for adverse effects and tuberculin reactions, in order to contribute to undestanding the optimal time for immunization. Four hundred eighty three infants from the newborn nursery and the well baby clinic of Hanyang University Hospital who had no family history of tuberculosis were divided into three groups; group I of infants immunized within 7 days after birth, group II of infants immunized at about 1 month of age and group III of infants immunized at about 3 months of age. To each infant 0.1 ml of BCG(Institute Merieux, France) was administered intradermaly and approximately 3 months later tuberculin skin test using 5 TU PPD (NIH, Korea) was performed. Adverse reactions following BCG vaccination such as temperature elevation, induration alone or with suppuration at or near the injection site, and lymph node enlargement were also analyzed. The summary of the results is as follows. 1) Distribution of diameters of induration on tuberculin skin test illustrated incomplete bimodal configuration in all three different age groups. The means 2 standard deviations of diameters of indurations distributed on the main bells were 10.07 4.52 mm in group I, 10.65 3.82 mm in group II, and 10.83 5.08 mm in group III, and were not significantly different. 2) Criteria for positive tuberculin reaction was diameters of indurations equal to or greater than 6mm, 2 standard deviations below the mean values of diameters of indurations on the main bells. 3) The positive tuberculin reaction rates of 85.8% in group II and 88.6% in group III were significantly greater than 74.1% in group I. 4) Incidence of complications following BCG vaccination including temperature elevation, induration with suppuration, and localized lymphadenopathy was not different among three groups and the serious complications such as temperature elevation and lymphadenopathy were minimal. The data indicate that it is appropriate to immunize infants with BCG at about one month of age and the incidence of complications following BCG vaccination was not different among three infant groups of different ages.
Humans
;
Immunization
;
Incidence
;
Infant*
;
Infant, Newborn
;
Lymph Nodes
;
Lymphatic Diseases
;
Mycobacterium bovis*
;
Nurseries
;
Parturition
;
Skin Tests*
;
Skin*
;
Suppuration
;
Tuberculin Test
;
Tuberculin*
;
Tuberculosis
;
Vaccination*
5.Replantation of 135 fingertip amputations.
Joon Hee LEE ; Jae Ho LIM ; Jong Moon LEE ; Woo Kyung KIM ; Chun Eun CHUNG
Journal of the Korean Society of Plastic and Reconstructive Surgeons 1993;20(5):1136-1144
No abstract available.
Amputation*
;
Replantation*
6.A Case of Perianal Adenocarcinoma Developing in Chronic Tuberculous Anal Fistula.
Joon Ho KIM ; Seok Hwan LEE ; Young Gwan KO ; Choong YOON ; Sung Jig LIM ; Moon Ho YANG ; Jung Joon YOO ; Kee Hyung LEE
Journal of the Korean Society of Coloproctology 1998;14(3):611-616
Mucinous adenocarcinomas of the anal region constitute only 2% of anal cancer and adenocarcinoma developing in a chronic tuberculous anal fistula is extremely rare. In most cases, its origin is difficult to ascertain because the primary sites have already been destroyed before any diagnosis of malignancy is made. We experienced a case of perianal adcnocarcinoma developing in chronic tuberculous anal fistula, which was treated by abdominoperineal resection with preoperative chemo-irradiation. We reported a case and reviewed the related literatures.
Adenocarcinoma*
;
Adenocarcinoma, Mucinous
;
Anus Neoplasms
;
Diagnosis
;
Rectal Fistula*
7.Functional Outcomes of Hip Arthroscopy for Pediatric and Adolescent Hip Disorders
Chaemoon LIM ; Tae Joon CHO ; Chang Ho SHIN ; In Ho CHOI ; Won Joon YOO
Clinics in Orthopedic Surgery 2020;12(1):94-99
BACKGROUND:
There is a paucity of literature on the use of hip arthroscopy for pathologic conditions in skeletally immature patients. Thus, the indications and safety of the procedure are still unclear. The purpose of this study was to investigate the safety and functional outcomes of hip arthroscopy for pediatric and adolescent hip disorders. We further attempted to characterize arthroscopic findings in each disease.
METHODS:
We retrospectively reviewed 32 children and adolescents with hip disorders who underwent 34 hip arthroscopic procedures at a tertiary care children's hospital from January 2010 to December 2016. We evaluated functional limitations and improvement after operation by using the modified Harris hip score (HHS), the Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC), subjective pain assessment with a visual analog scale (VAS), and range of hip motion as well as the complications of hip arthroscopy. Arthroscopic findings in each disease were recorded.
RESULTS:
Hip arthroscopy was performed for Legg-Calvé-Perthes disease (n = 6), developmental dysplasia of the hip (n = 6), slipped capital femoral epiphysis (n = 5), idiopathic femoroacetabular impingement (n = 6), sequelae of septic arthritis of the hip (n = 3), hereditary multiple exostosis (n = 2), synovial giant cell tumor (n = 3), idiopathic chondrolysis (n = 2), and posttraumatic osteonecrosis of the femoral head (n = 1). Overall, there was a significant improvement in the modified HHS, WOMAC, VAS, and range of hip motion. Symptom improvement was not observed for more than 18 months in four patients who had dysplastic acetabulum with a labral tear (n = 2) or a recurrent femoral head bump (n = 2). There were no complications except transient perineal numbness in five patients.
CONCLUSIONS
Our short-term follow-up evaluation shows that hip arthroscopy for pediatric and adolescent hip disorder is a less invasive and safe procedure. It appears to be effective in improving functional impairment caused by femoroacetabular impingement between the deformed femoral head and acetabulum or intra-articular focal problems in pediatric and adolescent hip disorders.
8.An Operative Case of Air-Gunshot Wound to the Thoracic Spine.
Sung Joon LIM ; Young Tae KIM ; Ho Gyun HA
Journal of Korean Neurosurgical Society 1997;26(4):584-588
The authors report a rare case of air gunshot wound to the thoracic spinal cord in Korea. A case of 17 year-old girl with a air-gunshot wound to the thoracic spine was presented with paraplegia. Radiologic studies revealed a bullet in the fifth thoracic spinal canal. The cerebrospinal fluid leaked through the entry point of the bullet was noted. After laminectomy and dural opening, a intramedullary hematoma with lodged bullet in the contused cord was found. They are removed successfully with any postoperative complications. The bullet was composed of lead. We report this case focusing on the pathophysiology and surgical treatment with review of literatures.
Adolescent
;
Cerebrospinal Fluid
;
Female
;
Hematoma
;
Humans
;
Korea
;
Laminectomy
;
Paraplegia
;
Postoperative Complications
;
Spinal Canal
;
Spinal Cord
;
Spinal Cord Injuries
;
Spine*
;
Wounds and Injuries*
;
Wounds, Gunshot
9.Epidural Hemorrhage Following Lumbar Epidural Block in LBP Patient without Coagulopathy: A case report.
Sang Hun KIM ; Kyung Joon LIM ; In Ho YANG
Korean Journal of Anesthesiology 2007;53(5):660-663
A 61-year old woman without the history of unusual bleeding diasthesis underwent epidural blockade for the relief of lower back pain (LBP). One hour after the epidural block, patient complained of progressive lower back pain and developed depressed dorsiflexion (Grade 0) of great toe in both feet. Diagnosis utilizing magnetic resonance imaging, showed epidural hemorrhage extending from T6 to S1. A neurosurgery consult obtained, and emergent decompressive laminectomy with hematoma evacuation was performed. Operation was successful and patient recovered satisfactory without any sequelae.
Diagnosis
;
Female
;
Foot
;
Hematoma
;
Hemorrhage*
;
Humans
;
Laminectomy
;
Low Back Pain
;
Magnetic Resonance Imaging
;
Middle Aged
;
Neurosurgery
;
Toes
10.Comparison of Intrathecal Meperidine, Fentanyl, or Placebo Added to 0.5% Hyperbaric Bupivacaine for Cesarean Section.
Joon Hyeuk CHOI ; Myoung Hoon KONG ; Sang Ho LIM ; Mi Kyoung LEE
Korean Journal of Anesthesiology 2000;38(1):49-57
BACKGROUND: The addition of various opioids to 0.5% hyperbaric bupivacaine intrathecally seems to potentiate analgesic effects of bupivacaine and to prolong the duration of analgesia. We compared the effect of intrathecal meperidine 0.25 mg/kg and 0.5 mg/kg, fentanyl 0.15 microgram/kg, and placebo when administered together with 0.5% hyperbaric bupivacaine 9 mg for cesarean section. METHODS: Forty-four healthy term parturients were randomly allocated (n = 11 per group) to receive the test solution (1 ml) containing preservative-free normal saline (control group), fentanyl 0.15 microgram/kg, meperidine 0.25 mg/kg, or meperidine 0.5 mg/kg intrathecally, immediately followed by the injection of 0.5% hyperbaric bupivacaine 9 mg. We observed the effective postoperative analgesic duration (time to VAS > or = 4), quality of anesthesia and side effects. RESULTS: The effective postoperative analgesic duration significantly increased in the groups receiving opioid compared with the control group (P < 0.05); control group 101.4 +/- 28.6 min; fentanyl group 192.3 +/- 29.2 min; meperidine 0.25 mg/kg group 208.8 +/- 21.7 min; meperidine 0.5 mg/kg group 289.8 53.6 min (data expressed as mean +/- SD). The quality of anesthesia was excellent in 100% of the meperidine group but in 82% of the fentanyl group and 91% of the control group. The incidence of nausea and vomiting were higher in the meperidine 0.5 mg/kg group (73%) than in the remaining groups (P < 0.05). CONCLUSIONS: The addition of fentanyl 0.15 microgram/kg or meperidine 0.25 mg/kg to 0.5% hyperbaric bupivacaine 9 mg for spinal anesthesia improves intraoperative analgesia and provides analgesia into the immediate postoperative period with no adverse effects on mother or neonate.
Analgesia
;
Analgesics, Opioid
;
Anesthesia
;
Anesthesia, Spinal
;
Bupivacaine*
;
Cesarean Section*
;
Female
;
Fentanyl*
;
Humans
;
Incidence
;
Infant, Newborn
;
Meperidine*
;
Mothers
;
Nausea
;
Postoperative Period
;
Pregnancy
;
Vomiting