A new method for measuring socket wear after Charnley THR.

概要

論文の詳細を見る
With this method socket wears ware measured in 7 hips of Charnley THR cases. However, the result was not always constant.The principle of this method is that in two radiographs taken over a period of time, displacement of the center of the metal head, in relation to the center of the wire marker's elliptical curve, shows the socket wear over a given period of time.With this method socket wears were measured in 7 hips of Charnley THR cases. However, the result was not always constant.It is possible to know the degree and direction of the socket wear in two-dimentions by using this method. However, there are some problems such as the technical difficulties and the necessity to get two radiographs taken with the same direction.It seems that the inconstancy of the results may be due to those problems.