Senile osteoporosis and femoral neck fractures in long-stay institutions.

The incidence rates of femoral neck fractures, one of the most serious complications of senile osteoporosis, were 8.7-9.4 times greater in old people in long-stay institutions than among old people living at home. The relative proportion of fracture patients admitted from long-stay institutions was four times greater than expected. Operative intervention of femoral neck fracture patients seemed to be successful: 85.4%-88.5% of patients were discharged to the environments from which they had been admitted.