Biomedical subjects
Publications and source records attributed to K Obrant.
The age- and sex-specific incidence of hip fractures was studied over a period of 30 years. There was a continuous increase in incidence over the years. The trend was most obvious in the oldest age groups and in men.
Roentgenograms of the femora were obtained in 21 patients who on average 10 years earlier had sustained a fracture of the shaft of one tibia. On the fracture side a slightly uneven "spotted" appearance could be detected in most patients. Also, the marrow canal was about 10 per cent wider in the femora of the fractured limb--this widening was unrelated to the time factor, indicating a permanent loss of endosteal bone.
Eighteen children with fracture of the shafts of the forearm were reexamined in adulthood. All fractures had primarily been displaced but reduced to a good position without residual axial or ad latem displacement. At follow-up there was no sign of deformity in the radiograms of the two bones. However, the range of motion for supination and pronation was significantly decreased. This implies that factors other than residual deformity are responsible for this dysfunction.