What examination does femoral head necrosis do

Update Date: 2024-04-15 Source: Network

summary

Femoral head necrosis for patients, may be caused by many factors, patients often can not accurately know what is caused by femoral head necrosis, so for the hospital examination is also confused, sometimes spent unjust money also did not check out, let's talk about the femoral head necrosis do what examination.

What examination does femoral head necrosis do

First: magnetic resonance imaging (MRI): the process of histological changes of avascular necrosis of the femoral head can be well reflected by MRI. MRI can detect bone necrosis 3-5 days after the occurrence of osteonecrosis, which is internationally recognized as the "gold standard" for early diagnosis of avascular necrosis of the femoral head, with an accuracy of 99%. The advantage of MRI is to make a diagnosis before X-ray and CT findings are abnormal.

Second: CT diagnosis of femoral head necrosis, it found the time of femoral head necrosis is later than MRI, in the early stage of femoral head necrosis, CT film can show normal. CT scan is superior to MRI in judging the bone changes in the femoral head, and it is of great significance in predicting the collapse after the diagnosis of femoral head necrosis.

Third: X-ray plain film: X-ray film can determine the scope of lesions and exclude other bone lesions. It has the advantages of simplicity, convenience, economy and wide range of application. It is still the most basic examination method in diagnostic technology. Because the bilateral incidence rate of avascular necrosis of the femoral head is 60%, the positive position should include the hip joint, while the frog potential position is of special significance for determining the collapse of the femoral head necrosis.

matters needing attention

When patients can know that femoral head necrosis may be caused by the above factors, they can go to the hospital to have a purposeful examination, and they will not spend money on unnecessary examinations, which is also very helpful for timely treatment of femoral head necrosis, and it is good to know more.