Abstract
To take a good radiograph of the ankle at anteroposterior position, we studied about following three methods. 1) Vertical position method ; Laying flat with the toes straiting up, passed central x ray through the center of the talotibial joint. 2) 10 degrees invert position method ; Inverting the foot approximately 10 degrees, passed central x ray thro ugh vertically the center of the ankle joint. 3) Our method ; Inverting the foot untill med. malleolus and lat. malleolus become equal distance from the film, passed central x ray with angles of 7.5 degrees from vertical line through the center of the ankle joint. Studing these three methods, we concluded the last way was the best.
