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Unemployment*

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Roller skating is a sort of sports with high risk which is increaseed in trends. It has become a very popular recreational sports in children, and concomitantly injury caused by it is very variable and sometimes servere. Therefore, adequate preventive garments or additional support for roller skating is essentially recommended to be worn. Authors in this study clinically analysed 24 cases of roller skate injury who were treated at the department of orthopaedic surgery, Kang-Nam St. Mary's hospital, Catholic Medical College and Center, during the 6 months period from May to October 1980. 1. Of 24 patients, 18(10 fractures) had injuries in the upper extremity, and 8(4 fractures) in lower extremity. 2. No unique mechanism was found which reasonably explains various types of injuries encountered In roller skating. 3. Through this study it is said that roller skating is not a benign sports, and the Injury caused by it may be largely preventable with adequate practical Instructions, coaching and wearing protective garments.
Child ; Clinical Study ; Clothing ; Humans ; Lower Extremity ; Skating ; Sports ; Upper Extremity

Previously severe multiple injuries associating the segmental fractures of the femurs were reported to be rare, and as a rule were fatal when surgeons did not immediately give or provide excellent care. Recently many patients having those injuries are quite often encountered at the clinic. The reason is high incidence of the mass casualties by road accidents, mine accidents and accidents at the industrial complexes. Also as the other reason, the advanced resuscitative measures which could do many of these patients to survive can be listed. For those severely injured patients associating segmental fracture of the femur, the more positive and efficient diagnostic and therapeutic measures have to be sought. Authors analyzed the 18 cases of segmental fractures of the femurs who were treated at the Orthopedic department of Catholic Medical College & Center from Jan., 1974 to Dec., 1979. The results obtained were as follows: 1. The male patients outnumbered the female in ratio of 13/5, and the most were at their 4th and 5th decade of age. 2. Traffic accident was the main cause of the injury; 13 out of 18 cases. Remaining 5 cases sustained injury by industrial accident. 3. All but one were closed fracture, and segmental shaft fracture was the commonest type of them; 10 out of 18 cases. 4. Thirteen patients accompanied significant injuries to other vital organ and/or other musculoskeletal system. 5. In entire cases the average union time in the proximal fracture was 28.9 weeks, and in the distal one 17.5 weeks. 6. Fractures regardless of their group that needed late bone grafting procedure numbered 7; 6 in the proximal shaft fracture and one in the distal fracture. 7. In 10 cases of the segmental shaft fracture (Group III fracture), bony union in the proximal fracture was obtained at 29.6 weeks in average. Proximal fractures in 4 cases in this group needed late bone grafting. Through these results it is suggested that in the treatment of segmental fracture of the femur, primary bone grafting at the proximal fracture site is beneficial to promote fracture healing or to prevent delayed union or nonunion especially when the proximal fracture is located across mainly the cortical part of the bone. Methods of treatment necessarily have to be selected according to the site and shape of the fracture, and in cases of segmental shaft fracture Kuntscher nailing is preferably recommended although the distal fracture site is not ideal one for the Kiintscher nail fixation.
Accidents, Occupational ; Accidents, Traffic ; Bone Transplantation ; Female ; Femur ; Fracture Healing ; Fractures, Closed ; Humans ; Incidence ; Male ; Mass Casualty Incidents ; Multiple Trauma ; Musculoskeletal System ; Orthopedics ; Surgeons

Balloon pulnounary valvuloplasty is an established method in the treatment of congenital valvular pulmonary stenosis. Balloon valvuloplasty was performed by using one or two balloons in a total of 19 mongrel dogs. Cross sectional area ratio ranging 145-406% was used to compare the relative sizes of the pulmonary annulus the balloon Hemodynamic changes and cardiac damages in single and double balloon groups were analyzed. Survival time of double balloon group was longer than that of single balloon group(P<0.05). Increment of the right ven?dular systolic pressure in single balloon group (mean 38 mmHg) was greater than that in double balloon group (mean 18 mmHg) (p<0.05). Decrement of the femoral arterial pressure in single balloon group (mean 87 mmHg) was greater than in double balloon group (mean 41 mmHg) (p<0.05). The locations of trauma were mainly the right ventricular free wall, the main pulmonary artery, the anterior leaflet of the pulmonary valve and in a less degree, anterior wall of the right atrium, the right ventricular outflow tract and the left pulmonary artery in the order of frequency. There were no significant differences in cardiac damages between single and double balloon groups (P>0.05). Major microscopic findings were sloughing of the endotheliu, fibrin deposition, hemorrhage, localized myocardial infarction and so on. In conclusion, double balloon pulmonary valvuloplasty is superior to single balloon technique in survival time and hemodynamics. Therefore, double, balloon technique is recommended for the pulmonary valvuloplasty.
Animals ; Arterial Pressure ; Balloon Valvuloplasty ; Blood Pressure ; Catheters* ; Dogs ; Fibrin ; Heart Atria ; Hemodynamics ; Hemorrhage ; Methods ; Myocardial Infarction ; Pulmonary Artery ; Pulmonary Valve ; Pulmonary Valve Stenosis

Balloon pulnounary valvuloplasty is an established method in the treatment of congenital valvular pulmonary stenosis. Balloon valvuloplasty was performed by using one or two balloons in a total of 19 mongrel dogs. Cross sectional area ratio ranging 145-406% was used to compare the relative sizes of the pulmonary annulus the balloon Hemodynamic changes and cardiac damages in single and double balloon groups were analyzed. Survival time of double balloon group was longer than that of single balloon group(P<0.05). Increment of the right ven?dular systolic pressure in single balloon group (mean 38 mmHg) was greater than that in double balloon group (mean 18 mmHg) (p<0.05). Decrement of the femoral arterial pressure in single balloon group (mean 87 mmHg) was greater than in double balloon group (mean 41 mmHg) (p<0.05). The locations of trauma were mainly the right ventricular free wall, the main pulmonary artery, the anterior leaflet of the pulmonary valve and in a less degree, anterior wall of the right atrium, the right ventricular outflow tract and the left pulmonary artery in the order of frequency. There were no significant differences in cardiac damages between single and double balloon groups (P>0.05). Major microscopic findings were sloughing of the endotheliu, fibrin deposition, hemorrhage, localized myocardial infarction and so on. In conclusion, double balloon pulmonary valvuloplasty is superior to single balloon technique in survival time and hemodynamics. Therefore, double, balloon technique is recommended for the pulmonary valvuloplasty.
Animals ; Arterial Pressure ; Balloon Valvuloplasty ; Blood Pressure ; Catheters* ; Dogs ; Fibrin ; Heart Atria ; Hemodynamics ; Hemorrhage ; Methods ; Myocardial Infarction ; Pulmonary Artery ; Pulmonary Valve ; Pulmonary Valve Stenosis

No abstract available.
Paragonimiasis*