Overview: In Silico Approaches to Understand Bone Adaptation -- Microscopic Fluid Flow Analysis in an Osteocyte Canaliculus -- Macroscopic Fluid Flow Analysis in a Poroelastic Trabecula -- Estimation of Bone Permeability for Poroelastic Analysis -- Modeling Trabecular Bone Adaptation Induced by Flow Stimuli to Osteocytes -- Effects of Local Bending Load on Trabecular Bone Adaptation -- Cancellous Bone Adaptation Predicted by Remodeling Simulations -- Trabecular Surface Remodeling toward Uniform Local Stress State -- Spatial and Temporal Regulation of Cancellous Bone Structure by Trabecular Surface Remodeling -- Comparison of Mechanical Quantities as Bone Remodeling Stimuli -- Trabecular Surface Remodeling Simulation of Cancellous Bone Using Image-Based Voxel Finite Element Models -- Functional Adaptation of Cancellous Bone in Human Proximal Femur -- 3D Trabecular Remodeling in Human Proximal Femur: Approach to Understanding Wolff's Law -- Trabecular Structural Changes in a Vertebral Body with a Fixation Screw.