Stem cells can be used to treat a variety of diseases, and by stem cells we mean seed cells with multiple differentiation capabilities. Most stem cells need to be cultured in vitro to proliferate. Our department uses stem cells for the treatment of osteonecrosis of the femoral head, which is an autologous bone marrow fluid concentrate enriched with mononuclear cells with the ability to differentiate and proliferate. This is usually done by puncturing the patient’s iliac bone at multiple points under anesthesia (general anesthesia or lumbar anesthesia) to extract about 300 ml of bone marrow blood and separating about 30 ml of the suspension containing autologous bone marrow through a special machine, and then introducing it into the necrotic lesion under fluoroscopy through a hollow needle. Of course the necrotic lesion is treated before this. But this type of treatment is only indicated for patients with earlier stages of femoral head necrosis. We have treated more than 500 cases with this method. We have achieved good results, and most of the patients have preserved their own femoral head. The majority of patients were spared joint replacement surgery. There are several points to note in order to achieve the desired outcome: firstly, the availability of this machine, secondly, the selection of suitable cases, and finally, the patient must have good compliance and follow the doctor’s postoperative instructions!
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