We will comprehensively discuss bone biomechanics, detailing how bone responds to various forces like tension, compression, bending, shear, and torsion, and how its geometry influences strength. They thoroughly explain the intricate process of fracture healing, from initial hematoma formation through inflammatory and reparative phases, culminating in remodeling according to Wolff's Law. Furthermore, the texts examine factors influencing bone healing, including systemic and local conditions, and describe implant materials, designs, and mechanisms of failure such as corrosion, fatigue, and wear. Finally, the sources explore bone grafting techniques, cartilage substitutes, and electro-stimulation osteogenesis as methods to enhance healing and address non-unions.