Necrosis of the femoral head, It is a common orthopaedic disease. Femoral head ischemia and osteocyte necrosis caused by different reasons, And then changes in bone structure and mechanical function, Finally, it causes hip joint pain and dysfunction. The course of femoral head necrosis progresses rapidly. Most patients have femoral head collapse about 2 years after femoral head necrosis, Therefore, the disability rate of femoral head necrosis is relatively high, Causes of femoral head necrosis There are various causes of femoral head necrosis, But the most common reasons are as follows: 1. Long-term use of hormones According to orthopaedic statistics of Peking Union Medical College Hospital, In the past 20 years, Hormonal necrosis of the femoral head accounted for 46.03% Read More …