The mechanical properties of bone vary depending on multiple parameters (age, sex, possible pathologies, etc.) and it is not easy to find one’s way around the data in the literature as they are extremely dispersed. Moreover, as regards trabecular bone, there is a strong dependence on apparent density, as evidenced by specific empirical reports. The densitometric measurements obtained by computerized axial tomography and the patient’s anamnestic information can provide some indications about bone quality and allow a motivated choice to be made, given the physiological range of variation of the mechanical properties of bone.
The characteristics of the materials constituting the orthotic, synthetic, prosthetic or implant systems are usually known.