A femoral head radiograph is taken to look at its appearance, whether the bone cortex is continuous or whether the femoral head is collapsed or deformed.
The femoral head examination is generally to know whether there is femoral head necrosis. In the early stage of femoral head necrosis, most of the radiographs can not be found, and need to perform hip CT or hip MRI to show. In the advanced stage of femoral head necrosis, radiographs can show the deformation of the femoral head and changes in the hip joint space.
For femoral head examination, radiograph is an economical and convenient examination, but the information obtained is limited and the internal situation cannot be found. Therefore, the decision of femoral head examination, such as radiography, CT or MRI, should be based on the patient’s condition and the information obtained by the doctor.