Biomedical subjects
Publications and source records attributed to W Hagner.
A case of simultaneous occurrence of two types of aseptic bone necrosis in both knees is presented. The knees of 12 years old hurdle runner became markedly painful after 5 months of competing. The pain has disappeared after 3 months of rest and physical therapy. Radiographic assessment carried out 2 years later demonstrated full remodelling of bony tissue.
A series of 30 athletes aged about 16 years on an average, exposed to activities putting a strain on the patellar tendon during training has been examined. They were involved in competitive sports for 3 years on an average. In 27 per cent of them jumpers knee symptoms have been found.
The strain of the lower part of spine in professional work is a complex social problem. The problem is particularly enhanced in highly industrialized countries. Many strain pains are related to the Baastrup disease. Analysed is the prevalence rate of this disease in a group of heavy automotive vehicles drivers, which constituted 13% of the test population. The obtained results were compared with a control group of automotive mechanical engineers and subsequently verified statistically, which indicated a higher prevalence rate of the Baastrup disease in professional drivers. Most frequently the test material revealed lesions of the spine L3-L4 and L4-L5 segments. It was decided advisable to undertake extensive preventive measures related to the strain of the lower part of spine in the working population.
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The problem of early degenerative lesions of knee joints in occupational groups of floorers and roofers has been presented. The major pathogenic factor was regarded to be overload occurring during the performance of static and dynamic work in the kneeling position. Over twofold rate of knee joints degeneration and its earlier occurrence were found as compared to controls. It was concluded that an extensive prophylaxis should be introduced.
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The paper presents a problem of overloading the lumbar part of the spine in drivers of heavy automotive equipment. Results of examinations of 480 drivers have been discussed. In this group 162 subjects complained in the anamnesis of having had pains. The group contained 1 subjects currently undergoing treatment and 4 subjects permanently unable to work. 95.7% were treated conservatively, the remaining 4.3% underwent operation. Finally, there is a possibility to decrease the rate of lumbar spine overloading through extensive prevention.
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