Avascular necrosis of bone tissue, also known as aseptic bone necrosis, is a common disease. With the trauma, hormone and alcohol, and many other factors.
Joint near the fracture is displaced from one of the main causes of bone necrosis. Fractures to local blood supply has been damaged, and this also seen some dislocation of the hip patients.
Adrenocorticotropic hormone is an important cause of bone necrosis factor, but not the only factor. Relevant data show that long-term use of hormones, blood lipid often unknown nature of the change at the same time, bone marrow fat cell volume increases, formation of fat embolism, obstructive vascular; addition, the hormone can also cause increased blood pressure, atherosclerosis and osteoporosis Osteoporosis, a micro-fracture, these changes may be involved in ischemic necrosis of bone tissue. At the same time, hormone used for chronic diseases, such as systemic lupus erythematosus, these diseases can often involving their own blood vessels, bone and bone marrow, leading to bone necrosis.
According to statistics abroad, bone necrosis lO% -30% of patients with high alcohol consumption history. This may be related to alcohol are easily repeated trauma, and alcohol intake easily lead to a large number fatty liver degeneration, and lipid cycle, the micro-vascular thrombus formation.
Patients with lymphoma, and other local radiation therapy, but also can cause osteonecrosis. In addition, hyperlipidemia, gout, arteriosclerosis, such as burns and bone necrosis there is a certain relationship.
Osteonecrosis of unknown causes, ischemic necrosis of bone patients about 20% -40%.
In the common femoral head osteonecrosis, the humeral head, femoral condyle, proximal tibia and foot, ankle, wrist bone tissue, clinical performance for the single, can damage many parts. About 85 per cent of patients had symptoms of bone necrosis, the initiative when almost all pain, and 2 / 3 of patients are also in the rest pain, pain at night, or about 40 per cent. Hip and shoulder involvement, 2 / 3 movement be restricted, have knee involvement 1 / 4 patients had limited movement.
Joint near the fracture is displaced from one of the main causes of bone necrosis. Fractures to local blood supply has been damaged, and this also seen some dislocation of the hip patients.
Adrenocorticotropic hormone is an important cause of bone necrosis factor, but not the only factor. Relevant data show that long-term use of hormones, blood lipid often unknown nature of the change at the same time, bone marrow fat cell volume increases, formation of fat embolism, obstructive vascular; addition, the hormone can also cause increased blood pressure, atherosclerosis and osteoporosis Osteoporosis, a micro-fracture, these changes may be involved in ischemic necrosis of bone tissue. At the same time, hormone used for chronic diseases, such as systemic lupus erythematosus, these diseases can often involving their own blood vessels, bone and bone marrow, leading to bone necrosis.
According to statistics abroad, bone necrosis lO% -30% of patients with high alcohol consumption history. This may be related to alcohol are easily repeated trauma, and alcohol intake easily lead to a large number fatty liver degeneration, and lipid cycle, the micro-vascular thrombus formation.
Patients with lymphoma, and other local radiation therapy, but also can cause osteonecrosis. In addition, hyperlipidemia, gout, arteriosclerosis, such as burns and bone necrosis there is a certain relationship.
Osteonecrosis of unknown causes, ischemic necrosis of bone patients about 20% -40%.
In the common femoral head osteonecrosis, the humeral head, femoral condyle, proximal tibia and foot, ankle, wrist bone tissue, clinical performance for the single, can damage many parts. About 85 per cent of patients had symptoms of bone necrosis, the initiative when almost all pain, and 2 / 3 of patients are also in the rest pain, pain at night, or about 40 per cent. Hip and shoulder involvement, 2 / 3 movement be restricted, have knee involvement 1 / 4 patients had limited movement.
