In this study noise source in a ward at four general hospitals in Seoul area has investigated and analysed. The degree of reaction against noise by 171 randomly has also been examined. The results of the study have shown that the source of noise is the speakers of wired broadcasting or from visiting guests in two hospitals located in residential area. The patients at the two other hospitals located at commercial site have been suffered more from traffic noise, However, because of their separated living at hospital from their ordinary houselife, sixty on percent of the inpatients have wished a music sound of around 60 dB (A). After having considered the results of the investigation and wishes of the inpatients, following suggestions have been made: 1. Reduce the number of guests or their length of stay. 2. Wired bodadcasting system should be substitued by sireless one, or if it's unavoidable, it should be used in office rooms only. 3. Since the stops and starts of vehicles induce much noise, Seoul City Government be requested to prepare an appropriate administrative measure for the vehicles around hospital area and ti should prevent the establishment of new hospitals along high way site. 4. By using earphone, inpatients can choose a wireless channel according to each individual's taste. This through the masking effect, would cover up the noise source. 5. Rooms along the streets should be utilized as offices, otherwise double windows should be set up for inpatient's wards.
Hospitals, General ; Humans ; Inpatients ; Length of Stay ; Local Government ; Masks ; Music ; Noise* ; Seoul

It has been well known that the incidence of delayed or nonunion of tibial shaft fracture is high and in order to improve methods of treatment and to get satisfactory final results in these fractures, it is important to find out as early as possible whether the fracture is healing normally or not. The fracture healing is closely related to the circulatory conditions at the fracture site, however, in contrast to animal experiments it is impossible to visualize directly the circulatory conditions at the fracture site. There have been many efforts to visualize indirectly these vascular re-establishments through angiography. Kaski(1974) reported a paper concerning osteomedullography of tibial fracture with phlebocompression and noticed 5 types of veins related to the process of healing. We performed 54 cases of osteomedullography in 41 tibial fracture at 3 months after treatment and the following results were obtained: 1. The sinusoidal vein in the proximal fragment was observed most frequently and the next were intra-osseous crossing vein, periosteal callus vein, ascending branch of main efferent vein, and periosteal veins of proximal fragment in decreasig frequency. 2. The rate of positive finding in osteomedullography at 3 months after treatment was lower, and periosteal callus veins were observed more frequently in the group treated with only cast immobilization than in the group treated with plate and screws. 3. In the group treated with compression plate and screws, osteomedullographs were positive in all 3 cases within 3 months after operation and sinusoidal veins in the proximal fragment were visualized in all cases, however periosteal callus vein was not visualized at all. 4. After bone graft, the differentiation of periosteal callus from grafted bone was not easy in plain X-ray film, but osteomedullography was very useful in these cases. Positive findings were noticed in 2~3 months in all cases following bone graft. 5. The authors found that the ideal time of performing osteomedullography was 3 months following treatment. If found to be negative after 4 months following treatment, bone graft was necessary.
Angiography ; Animal Experimentation ; Bony Callus ; Fracture Healing ; Immobilization ; Incidence ; Tibial Fractures ; Transplants ; Veins ; X-Ray Film

No abstract available.
Necrosis*

No abstract available.

No abstract available.
Orthognathic Surgery

Arthroscopy of the knee joint is an essential diagnostic procedure of the knee joint lesions because of its high diagnostic accuracy and simple procedure and high safety. We analysed in 300 cases of knee joints arthroscopy which performed in Kyung Hee University Hospital from July 1978 to June 1982. The results were as follows: 1. The diagnostic accuracy of clinical diagnosis of knee joint lesions based on arthroscopic findings was 51.0%. 2. The diagnostic accuracy of clinical diagnosis in surgically confirmed cases of knee joint lesions was 56.1% and diagnostic accuracy of arthroscopy was 90.9%. 3. In meniscal lesions, the diagnostic accuracy of arthroscopic diagnosis was 94.5%, arthrographic diagnostic accuracy was 84.9%, clinical diagnostic accuracy was 48.9% and combined accuracy of three diagnostic methods was 97.3%. 4. In cases which diagnosed as I.D.K. (Internal Derangement of Knee) in initial stage of knee joint lesions, meniscal lesions (32.8%) and ligament injuries (22.4%) were predominant lessions based on arthroscopic findings. 5. The frequency of meniscal tear were no significant difference in lateral (33.3%) or medial (36.0%) meniscus except discoid meniscus rupture. 6. 68 Cases of 300 arthroscopies (22.7%) were avoided unncessary arthrotomy through preoperative arthroscopic examination of knee joint. 7. Arthroscopy is very useful and essential not only to confirm the diagnosis but also to treatment of knee joint lesions.
Arthroscopy ; Diagnosis ; Knee Joint ; Knee ; Ligaments ; Rupture ; Tears

BACKGROUND: A newly-found mitochondrial toxin, 3-nitropropionic acid (3-NP), has been proved to induce apoptosis in the striatum. Although striatal lesions produced by 3-NP could develop through an excitotoxic mechanism, the exact relationship between apoptosis induction and excitotoxicity after 3-NP treatment is still not clear. We investigated the role of excitotoxicity and oxidative stress on apoptosis induction within the striatum following intra-peritoneal injection of 3-NP. METHODS: 3-NP was injected for 5 days intra-peritoneally in three month-old mice. One day after the last injection, animals were decapitated. To confirm the presence of apoptosis, we performed in-situ detection of DNA fragmentation by using TUNEL technique and agarose gel elctrophoresis after DNA extraction from striatum. To examine the effect of frontal cortex removal on 3-NP-indeced apoptosis, we removed left frontal cortex by aspiration. For excitotoxicity, NMDA-receptor antagonist-MK 801, non-NMDA antagonist-NBQX, and saline were injected intraperitoneally before 3-NP treatment To detect superoxide, we administered hydroethidium (HEt: 200 ul; 1mg/ml) into the jugular vein 2 days after 3-NP, and the density of oxidized HEt in samples were examined under flouscent microscope. We performed caspase staining to test immunoreactivity of caspase 3 in samples. RESULTS: The TUNEL positive cells were not observed in the striatum ipsilateral to the frontal cortex-removed side, but found in the contralateral striatum. Superoxide radicals measured by using HEt and caspase immunoreactivity were also significantly weaker in the striatum ipsilateral to the frontal cortex-removed side than the contralateral striatum. TUNEL staining revealed less apoptotic changes in the striatum of MK801-treated group than NBQX-or saline-treated groups. DNA laddering on agarose gel electrophoresis was observed in the striatum of NBQX- or saline-treated mice, but not found in MK 801-treated group. CONCLUSION: We demonstrated that removal of the corticostriatal glutamate pathway reduced superoxide production as well as apoptosis induced by 3-NP and NMDA receptor antogonist, but not non-NMDA antagonist, prevented 3-NP-induced apoptosis in the striatum. These results suggest that NMDA-mediated glutamatergic excitotokicity plays an important role in 3-NP related striatal damage.
Animals ; Apoptosis ; Caspase 3 ; DNA ; DNA Fragmentation ; Electrophoresis, Agar Gel ; Glutamic Acid ; In Situ Nick-End Labeling ; Injections, Intraperitoneal* ; Jugular Veins ; Mice* ; Mitochondria ; N-Methylaspartate ; Oxidative Stress ; Sepharose ; Superoxides

No abstract available.

The principle in the treatment of an elderly patient with an intertrochanteric fracture has swung from traction to internal fixation due to complication such as pneumonia, skin ulcer, and throm-boembolic disease, etc. Since the introduction of the Smith-Peterson nail, numerous internal fixation devices such as I-beam nail, Thornton plate, Jewett nail and Holt nail have been developed by gadgeteers and instrument companies. Recently Compression Hip Screw is popular because of rigid internal fixation. The operative management of intertrochanteric fractures of the hip using Compression Hip Screwplate was performed in thirty-three patients who were followed more than 5 months after operation at Department of Orthopedic Surgery, Kyung Hee University Hospital, from Feb. 1974 to 1978. The results were as follows. 1. Of 33 cases of intertrochanteric fractures, 3 cases were stable fracture and 30 cases were unstable fracture. The commonest type was Tronzo type III with 42 percentage. 2. Dimon-Hughston reduction in 13 cases with unstable fracture and anatomical reduction in 20 cases with stable and unstable fracture were achieved. 3. The average time to fracture union was 12 weeks, minimum in 8 weeks (maximum 20 weeks). The average union time in age group over 50 years was 14 weeks and 11 weeks in age group under 50 years. 4. The average union time was 13 weeks in medial displased group and 10 weeks in anatomical reduction group. 5. Complication after internal fixation were 4 cases e.g., two cases of varus deformity, one case of genitourinary tract infection and one transient peroneal nerve palsy. 6. Compression Hip Screw is a good internal fixation device to treat intertrochanteric fracture.
Aged ; Congenital Abnormalities ; Hip Fractures ; Hip ; Humans ; Internal Fixators ; Orthopedics ; Paralysis ; Peroneal Nerve ; Pneumonia ; Skin Ulcer ; Traction

Magnetic resonance imaging has been recognized as more suitable method than radiography and bone scan for the early detection of avascular necrosis of the femoral head. Segmental collapse is the most important factor in the prognosis of patient with avascular necrosis. The authors studied the appearance of avascular necrosis with both radiography and magnetic resonance imaging and then determined which lesions remained unchanged, progressed or led to collapse, as determined wih follow-up radiography in the 61 radiographically negative avascular necrosis of the femoral heads. 1. The necrosis-progression rates according to the extent were 36% in Extent A, 83% in Extent B, and 93% in Extent C. The necrosis-progression rate was significantly correlated with the extent of necrosis initially involved. 2. The necrosis-progression rates according to the location were 37% in Type I, 70% in Type II, and 95% in Type III. The necrosis-progression rate was significantly correlated with the weight bearing area of necrosis initially involved. 3. There was no correlation between necrosis-progression rate and signal intensity. 4.All of the cases which had combinations of the Extent C, and Type III location showed progression. 5. None of the femoral heads that had been treated at the radiographically negative stage was collapsed, but 35% of the femoral heads those had been treated at the radiographically positive stage were collapsed. 6. In the cases which were treated early, all of the Extent C, Type III were collapsed, but none of the Extent A, Type I were collapsed. In conclusion, magnetic resonance imaging is useful for evaluation of the risk of collapse or for anticipation of the prognosis of the affected hip joint as well as for the early diagnosis of radiographically negative avasular necrosis of the femoral head.
Early Diagnosis ; Follow-Up Studies ; Head ; Hip Joint ; Humans ; Magnetic Resonance Imaging ; Methods ; Necrosis ; Prognosis ; Radiography ; Weight-Bearing