Abstract
A survey with questionnaires was made on aged persons at age of 65 or older with 207 returns (average age: 75.3) to find out the cause of falls.
As to the relationship between the kind of cases and the direction of falls such tendency was noted as many sideways falls causing fracture of the femoral neck while many rearward falls causing compression fracture of the spine. It was also noted that when one falls on his/her knee at the time of the falls little fracture of the femoral neck took place.
As one reaches to the age of 75, his/her stability in standing becomes worse and he/she has more possibility of falls. As the cause of the instability in standing, not only knee OA but neurosurgical aspects shoud be taken into consideration.
