1. A computer-implemented method for analyzing a patient's body part of interest to assess bone strength and/or risk of future fracture, said method comprising: obtaining a priori information regarding the body part of interest; performing X-ray absorptiometric scans of the patient's body part of interest and collect X-ray absorptiometry data from the X-ray absorptiometric scans; constructing a three-dimensional model of the patient's body part of interest, by utilizing the a priori information along with the X-ray absorptiometric data; and performing measurements of various geometric parameters on the three-dimensional model and determining at least one of geometric and structural properties.