Archives of orthopaedic and trauma surgery
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Arch Orthop Trauma Surg · Jan 1990
Case ReportsHemodialysis-associated amyloidosis of bone of beta-2 microglobulin origin.
A case of hemodialysis-associated amyloidosis in a patient who had been on hemodialysis for 10 years is described. Bone lesions were found in the humeral heads, carpal bones, and femoral heads and necks. ⋯ We reconfirmed that bone lesions associated with long-term hemodialysis are manifestations of amyloidosis of beta-2 microglobulin origin. Hemodialysis-associated amyloidosis should be considered in the treatment of long-term hemodialysis patients.
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Arch Orthop Trauma Surg · Jan 1990
"Physiological osteoporosis" and "osteoblast insufficiency" in old age. Comparative radiological-morphometric and statistical studies on the spongy bone of lumbar and cervical vertebral bodies.
To investigate the expectation of general insufficiency of osteoblasts with increasing age, we studied autotopsy material from 105 deceased persons of both sexes who had died between 16 and 91 years and in whom clinically manifest diseases of the bone had been excluded. Quantitative morphometric examination of the structure of the spongy bone of the 3rd-5th lumbar vertebral bodies (LVBs) and of the 5th-7th cervical vertebral bodies (CVBs) was carried out in frontal and sagittal planes, the parameters analysed being volumetric density (Vv), surface density (Sv) and specific surface area (S/V), and the results were subjected to statistical evaluation. The results showed that in the three LVBs, Vv, Sv and S/V behave in a similar manner, Vv and Sv decreasing after the age of 50 years by more than one-third while S/V remains constant throughout life. ⋯ This differing behavior of the spongy bone in the two regions of the spinal column is an expression of the different characteristic loading forces in each regions: LVB loading is predominantly static, CVB loading mainly dynamic. Thus, from the functional point of view, what is known as "physiological osteoporosis due to ageing" is nothing more than adaptation by an ageing bone to physical activity, reflecting--like the bone of the young adult--the current loading of the cancellous bone by the actions of the musculoskeletal system. Since such physical activity is often age-related, the performance of the osteoblasts does not depend upon age per se, but merely on the remaining functional adaptive capacities of the ageing organism as whole.
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Arch Orthop Trauma Surg · Jan 1990
The incidence of fractures of the proximal femur and the distal radius in Tottori prefecture, Japan.
We report the incidence of proximal femur and distal radius fractures in Tottori prefecture, Japan. In 1986 and 1987, 573 proximal femoral fractures and 1576 distal radial fractures were registered in this district. The age- and sex-specific incidence rates of these two fractures are lower among Japanese than among European or North American whites, according to previous reports. Thus, it was concluded that the incidence rates of these two fractures are lower in Japanese than in Caucasians.
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Arch Orthop Trauma Surg · Jan 1990
Open fractures of the femur treated by the pin-in-plaster technique. Contribution to the art and practice of trauma surgery in the Third World.
In order to cope with the frequent lack of adequate and sufficient external fixator systems in Third World countries, the pin-in-plaster technique was adopted and used in the management of open fractures of the femur. It consists of the use of Steinmann and Schanz pins incorporated into a plaster of Paris cast. ⋯ The advantages and disadvantages of the method are discussed. The method is recommended as an effective improvisation of the Hoffman apparatus for use in exceptional circumstances, such as war and adverse socioeconomic conditions as are found in most Third World countries.