RESUMEN
The present study aimed to detect the reliability of sex determination based exclusively on patellar measurements of Egyptians. Sixty-two normal right patellae were taken from 62 cadavers [34 males and 28 females] aged from 22 to 70 years and belonging to Egyptian population. Seven measurements [maximum width, maximum height, maximum thickness, width and height of the lateral and the medial articular surfaces] were estimated for each patella and statistically analyzed. The results revealed that the measurements of males were significantly higher than those of females except for the height of the medial articular surface. Maximum width was the most reliable parameter in sex prediction with 93.55% rate of accuracy, followed by the maximum thickness and width of the lateral articular surface. Combination of two parameters showed that the maximum thickness with the width of the lateral articular surface gave the highest rate of accuracy for correct sex determination [95.2%]. These results can help in identification of sex from the patella when no other human remains suitable for sex determination are available