Some species of mesophilic bacteria in the genus Aeromonas were isolated from a snakehead (Channa argus) culture-pond in the Myung-Ji area, a freshwater culture-pond in Pukyung National University, and seawater near the sewage treatment plant in Kwang-An Beach in Pusan. They were identified by biological characteristics, and their susceptibility to ten antibiotics including ampicillin, cefoxitin, ceftazidime cephalothin, cefotiam, chloramphenicol, nalidixic acid, rifampin, cefoperazone-sulbactam, and imipenem, was also studied. Four species in the genus Aeromonas, A. veronii biovar sobria (27 strains), A. caviae (14 strains), A. trota (1 strain), and A. schubertii (1 strain) were identified. A. trota, an unrecorded species in Korea, is reported for the first time in this study. Three strains of A. veronii biovar sobria showed multiple resistance to three kinds of antibiotics and one strain to four drugs. All strains of A. caviae were resistant to more than three drugs and seven strains to four drugs. A. trota was resistant to cephalothin and rifampin, but A. schubertii showed multiple resistance to ampicillin, nalidixic acid, and rifampin.
Aeromonas* ; Ampicillin ; Animals ; Anti-Bacterial Agents ; Bacteria ; Busan ; Cefotiam ; Cefoxitin ; Ceftazidime ; Cephalothin ; Chloramphenicol ; Drug Resistance, Microbial* ; Fresh Water* ; Guinea Pigs ; Imipenem ; Korea* ; Nalidixic Acid ; Plants ; Population Characteristics ; Rifampin ; Seawater* ; Sewage

No abstract available.
Congenital Abnormalities* ; Spondylitis, Ankylosing*

No abstract available.

No abstract available.

The energy spectra and dose calculations were performed for secondary neutrons from a 24 MV LINAC using MCNPX code (V2, 4, 0). The energy spectra for neutrons and photons emitted from the LINAC head, and absorbed dose to water were calculated in water phantom. The absorbed doses calculated with Monte Carlo were 0.66~0.35 mGy/photon Gy at the surface to d=5 cm, and calculated with interaction data was 0.52 mGy/photon Gy at the depth of electron equilibrium in water. We have shown that this work can be applied to dose estimation of neutrons from high energy LINAC through the comparison of our results with other results.
Head ; Neutrons* ; Photons ; Water

The author performed this study to investige the relationship between condylar movements recorded with Pantronic and mandibular movements at incisal area recorded with BioEGN. For this study 24 patients with Temporomandibular disorders (TMDs) and 30 dental students without any masticatory symptoms were selected as patients group and control group, respectively. The items recorded with Pantronic(Denar Corp., USA) were immediate side-shift, orbiting path, protrusive path, and PRI. BioEGN(Bioelectric-gnathography, Bioresearch Inc., USA) were sued to measure the amount of mandibular torque movement in frontal and horizontal plane and also the distance of mandibular translation at incisal area. Amount of mandibular rotational torque movement was analyzed by angle and difference between both condyles in frontal and horizontal plane. The collected data were processed with SAS program and conclusion were as follows : 1. Mean value of items recorded with Pantronic were not significantly differed between patients group and control group except the item of pantographic reproducibility index(PRI). The value of PRI was 39.5 in patients group, and 29.5 in control group. 2. The amount of mandibular torque movement was not differed tin early protrusive and early left excursion between patients group and control group, but in early right excursion, patients group showed more value than control group did. 3. The distance on sagittal plane in early eccentric movements were longer in patients group than those in control group, but the distance of maximal eccentric movements were not significantly differed between patients group and control group. 4. Items which showed significant correlation with PRI were progressive side-shift, and horizontal torque movement in early protrusion and right excursion. 5. The angle of protrusive path of affected side was greater than of non-affected side in unilaterally affected patients, but the protrusive angle of preferred chewing side was not differed from that of contralateral side in control group. 6. The amount of torque movement in early protrusion and right excursion were greater in patients with coincidence of affected side and preferred chewing side than in patients without coincidence.
Humans ; Mastication ; Orbit ; Students, Dental ; Temporomandibular Joint Disorders ; Tin ; Torque

Displaced fracture of the ankle are probably the most common skeletal injury managed today by open reduction and internal fixation. But, it is recommended that metallic implant might be removed to restore normal biomechanical forces on hone and to reduce discomfort directly under the skin. in order to reduce the resources needed for the removal of metallic fixation devices, absorbable impiants of biodegradable synthetic polymers were deveioped. However reports of clinical application of such implants have so far been very few. This prospective study represents the good resuits in 15 displaced non-comminuted closed malleolar fractures of the ankle treated using hiodegradahle internal fixation in department of orthopedic surgery of Kwang Myung Sung Ae general hospitai from June I 995 to December 1996. The results were as follows 1. All cases were united and the average time for union was 7.6 weeks. 2. As a results of comparison with normal side, a restriction of 10 degrees or more of dorsiflexion of the ankle joint was present in 4 cases, a restriction of 20 degrees or more of plantar tlexion was present in 2 cases, a restriction of supination was present in 3 cases and a restriction of plantar flexion was present in 4 cases. 3. According to Phillips functional scoring scale, 4 cases were excellent, 7 cases good, 4 cases fair and no cases were poor. 4. There were no complications in all cases.
Ankle ; Ankle Joint ; Orthopedics ; Polymers ; Prospective Studies ; Skin ; Supination

It is usually difficult to obtain an exact reduction of bony mallet finger involving more than one third of the articular surface by closed manipulation and extension splinting and needs the operative treatment to obtain an exact anatomical reduction. Operative treatment of a mallet finger is a difficult procedure, fraught with many potential problems, including intraoperative fragmentation of dorsal lip fracture, difficulty of exposure and anatomical reduction of the fragment, skin slough, and postoperative loss of fixation. The purpose of this study is to evaluate the fixation technique and to reduce intraoperative complications. We retrospectively reviewed 13 patients of bony mallet fingers, who were treated by tension wire fixation between January 1994 and August 1995 at the Department of Orthopaedic Surgery, Kwangmyung Sung Ae Hospital. There were 6 male and 7 female pateints. The most common cause was sports injury (6 cases). According to Wehbe and Schneider classification, 8 cases were type II and subtype B, 7 cases were the other types. According to modified Abouna and Brown criteria, the clinical results were success in 10 cases and failure in 3 cases. Postoperative complications were superficial infeciton (2 cases), skin necrosis (1 case), nail deformity (1 case) and secondary extensor tendon rupture (1 case). In conclusion, tension wire fixation of bony mallet finger was a simple and effective fixation of the fragment under the direct vision, which make it possible to exercise early and fix sturdily. But it should be avoided some pitfalls associated with internal fixation of small bony fragments.
Athletic Injuries ; Classification ; Congenital Abnormalities ; Female ; Fingers* ; Humans ; Intraoperative Complications ; Lip ; Male ; Necrosis ; Postoperative Complications ; Retrospective Studies ; Rupture ; Skin ; Splints ; Tendons

PURPOSE: To analysis the efficacy of MRI in assessing fracture configuration and frequency of associated soft tissue injuries in tibial plateau fractures. MATERIALS AND METHODS: In the plain films and MRI of 47 cases with tibial plateau fractures,every fracture was classified by findings on plain film and MRI respectively according to the Schatzker system and they were compared with each other. The degree of displacement and depression of the fracture fragments were measured on plain film and MRI. RESULTS: MRI was more accurate in determining the classification of the fracture and measuring the displacement and depression of fragments. Fracture classifications were changed in 12 cases. Especially in Schatzker VI cases, articular step off over 2 mm and articular fragments over 2X2 cm were revealed in detail by MRI. Evidence of internal derangement of the knee was found in 38 (80.8%) cases. CONCLUSION: Most of the cases with acute tibial plateau fracture were commonly associated with ligamentous and meniscal injuries. MRI can aid in accurate evaluation of tibial plateau fracture patterns and decision of treatment plan.
Classification ; Depression ; Knee ; Ligaments ; Magnetic Resonance Imaging* ; Soft Tissue Injuries

PURPOSE: Deep infection after hip and knee arthroplasty is a serious complication and is difficult to treat due to its toxicity. The aims of our study were to find out the differences of methicillin-resistant Staphylococcus aureus (MRSA) and methicillin-sensitive Staphylococcus aureus (MSSA) infection after hip and knee arthroplasty focusing on clinical course and laboratory findings. MATERIALS AND METHODS: We retrospectively reviewed 61 staphylococcal infection cases after hip and knee arthroplasty (MSSA in 25 patients, MRSA in 36 patients). Vital signs, laboratory tests, microbiology and clinical courses were analyzed. The average follow-up period was 3.8 years (range, 2 to 10.1 years). RESULTS: At initial visit, MRSA group showed significant higher erythrocyte sedimentation rate, C-reactive protein (CRP) and neutrophil percentage. The average duration for the normalization of CRP was longer in MRSA group (MRSA: 36.7+/-25.1 days, MSSA: 24.7+/-13.6 days; P=0.008). The mean interval between staging operation was longer in MRSA group (MRSA: mean 8.7 weeks [range, 6.4 to 21.4 weeks], MSSA: mean 6.8 weeks [range, 6 to 13.1 weeks]; P=0.012). MRSA group (13.9%) revealed higher recurrence rate than MSSA group (4%). Two patients (5.6%) from MRSA group expired by sepsis. One limb amputation (2.7%) was carried out in MRSA group. CONCLUSION: MRSA infection after arthroplasty showed more toxic serologic parameter and poorer prognosis. Aggressive treatment should be considered for MRSA infection following arthroplasty.
Amputation ; Arthroplasty ; Blood Sedimentation ; C-Reactive Protein ; Drug Resistance, Microbial ; Extremities ; Follow-Up Studies ; Hip* ; Humans ; Knee* ; Methicillin-Resistant Staphylococcus aureus* ; Neutrophils ; Prognosis ; Recurrence ; Retrospective Studies ; Sepsis ; Staphylococcal Infections ; Staphylococcus aureus ; Vancomycin ; Vital Signs