Mechanical Engineering / Biomedical Engineering / Biomechanics / Health Care / Finite Element / Structural Integrity / Finite Element Analysis / Osteoporosis / Humans / Computer Simulation / Trabecular Bone / Compressive Strength / Bone Density / Finite Element Model / Health Care System / Perforation / Elastic Modulus / Bone and Bones / Transversely Isotropic Solids / Structural Integrity / Finite Element Analysis / Osteoporosis / Humans / Computer Simulation / Trabecular Bone / Compressive Strength / Bone Density / Finite Element Model / Health Care System / Perforation / Elastic Modulus / Bone and Bones / Transversely Isotropic Solids