ABSTRACT
The present work was carried out to investigate the possibility of the estimation of sex from some radiological measurements among a known cross section of Egyptian population. Lateral and anteroposterior radiographs of the right foot and knee were made on 160 living unfractured and non pathological individuals comprising 80 males and 80 females aged 25-65 years. Two measurements on right patella [maximum height and maximum width] and two measurements of metatarsal bones [length and mid shaft diameter] were used to determine sex by univariate and multivariate discriminant analysis. The study revealed significant sex differences, based on these measurements taken on patella or metatarsal bones. One function associating two parameters [length and mid shaft] of the third metatarsal bone obtained the highest value of correct sex determination with a rate of 100% accuracy. The study suggested that the radiographs of the knee and foot are convenient, rapid, cheap and noninvasive means for estimating sex