A comparison of radiographic foot measurements taken in two different positions

The purpose of this study was to ascertain if positioning of the feet for r adiographic assessment produces significant variations in measured angles, and if measurements taken from radiographs taken on two separate occasions are reproducible. Weightbearing x-rays were taken of both feet of ten male healthy subjects in two standardized positions: 1) the angle and base of ga it and 2) the feet together and straight-ahead positions. The radiographs w ere repeated 2 weeks later. The results failed to demonstrate significant d ifferences of radiographic measurements between the two specific foot-posit ioning methods. No significant differences were found between radiographic measurements of normal feet taken on different occasions. A strong correlat ion of the repeated measures suggests that weightbearing foot radiographs c an be reliably reproduced.