This study describes a radiographic protocol and a measurement technique that facilitate and improve bone measurements, thus contributing to age estimation. A qualitative criterion, namely, a clear-cut bony endplate, was defined and tested. Its reliability (repeatability and reproducibility) turned out to be good, showing insignificant differences to the threshold of 0.05, with average errors of 0.26 and 0.44 mm, respectively. Moreover, the test of eventual size differences between the right and left femurs showed a P value < 0.0001. The test of the qualitative criterion was based on the comparison of the radiographic in situ femur measurements and the radiographic measurements of the same bones after dissection. The results were satisfactory, since an average error of 0.58 mm was obtained, which did not show any significant differences to the threshold of 0.05. The researchers concluded that this methodology provides an easy and precise new measurement tool for forensic practice, allowing the creation of some nonultrasonographic tables that fit the target population. 1 table, 2 figures, and 27 references