1989 年 37 巻 3 号 p. 1059-1062
39 patients over 80 years old with femoral neck fracture were examined. They were classified into four groups on admission and again at the follow-up. The average hospitalization time was one hundred and twenty-two days. Many patients had cardio-vascular diseases, senile dementia, anemia or lung diseases. Pneumonia and heart failure were important as post-operative complications. At one-year follow-up, 9 patients were found to be dead. 58% of the surviving patients had maintained their pre-fracture level of activity compared with 72% of the patients under 80 years old. Medical complications and senile dementia caused deterioration of their activity levels.