[Bone fracture and the healing mechanisms. Microdamage and Microfracture].

Although both microfracture and microdamage are the damages caused by bone fatigue, microfracture shows micro-callus formed during trabecular fracture healing. Microdamage shows microcracking in the bone matrix, which is detected by osteocyte network then repaired by bone remodeling. Imbalance between generation and repair of bone fatigue causes accumulation of microdamage.