Deformity osteitis

Osteitis deformans is a chronic progressive osteopathy, with local bone tissue osteogenesis and osteogenesis, bone resorption and reconstruction, osteoporosis and calcification as pathological features. The cause of this disease is unknown. Chronic focal bone remodeling is abnormal. At first, bone resorption in the lesion is increased, and then compensatory new bone formation is increased. The diseased site is woven with bone and lamellar bone mosaic, resulting in disordered bone structure. , Thickened bones, weakened bones and increased blood vessels in the bones. Clinical manifestations are bone pain, bone deformity and fracture. The disease does not directly invade the joint, but deformities of the bone can cause secondary joint disease.