PROBLEM TO BE SOLVED: To provide an angle measurement system and a program for accurately measuring an angle of the periphery of an object patients affected area, in artificial joint replacement or osteotomy, in particular, a method for more accurately and simply measuring an angle of his/her joint part.SOLUTION: An angle measurement system includes attitude sensors 11 and 12 which detect each of attitude angles in a three-dimensional space, and a PC 13 which acquires the attitude angles detected by the attitude sensors 11 and 12, which computes relative angles from the respective acquired attitude angles and which outputs the plurality of computed relative angles on a time series.COPYRIGHT: (C)2014,JPO&INPIT【課題】人工関節置換術や骨切り術において、対象患者の患部周辺の角度を正確に計測するための角度計測システム及びプログラム、特に関節部分の角度をより正確、且つ簡易に計測する方法の提供。【解決手段】3次元空間中での姿勢角度をそれぞれ検出する姿勢センサ11,12と、姿勢センサ11,12が検出した姿勢角度を取得し、取得した各姿勢角度から相対的な角度を算出し、算出した時系列上の複数の相対的角度を出力するPC13とを備える。【選択図】図1
