Fracture healing is a physiological process in which the
body itself repairs the bone fractures. During the treatment, the doctor pushes
the bone back to its original place via relocation, stabilizes its position
then waits for the healing process of the bone to occur naturally. The duration
of the healing process depends on the extent of the injury. It also depends
upon the angle of the fracture or the dislocation of the bone.
The process of fracture healing occurs in four
stages-Hematoma formation, cellular growth, callus formation and ossification.
When there is a fracture in bone, blood capillaries discharge blood around the
fractured bone. Within a few hours, the blood clots and hematomas are thus
formed. Inflammatory exudates from the circulatory system into lesions or areas
of inflammation ends.
The blood clot formed remains intact around the damaged bone
and later it becomes the part of the bone. After sometime, fibroblasts and
capillaries, with the help of connective tissues and blood vessels, release
liquids in hematomas and granulation of tissues occur.
This granulation tissue is called as provisional callus.
When Osteoblasts replicate from the inner surface of peritoneum, it forms
callus. It is formed within a week. Callus increases the bone thickness as it
covers the fractured area of bone.Osteoblasts keep everything in check so that
the essential mineral salts, such as calcium and phosphate ions, are deposited
properly on the callus. These mineral salts help in the strengthening of the
callus. Osteoblasts help in developing smoothness of the bones. This is called
as the remodeling process.
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