Autologous Adipose Tissue Derived Mesenchymal Stem Cells Transplantation in Patient With Avascular Necrosis of the Femoral Head

* Age :18-70, males and females.

* Subjects who understand and sign the consent form for this study.

* Clinical diagnosis of nontraumatic avascular necrosis of the femoral head

* Steinberg stage I, II, ⅢA

* Patients whose lesion is more than 30% (by Kim's Method)

* Patients who have collapsed femoral head

* Patient has had a Core Decompression or Multiple Drilling in the affected hip

* Patients who received osteoporosis medicines and parathyroid hormone drugs

* Taking medications that use the immunosuppressive drugs and cytotoxic agents or unable to discontinue their use for the duration of the study

* Taking medications that use the adrenocortical hormone drugs or unable to discontinue their use for the duration of the study

* Subject unable to undergo MRI (i.e. patients with pace-maker, metallic hip prosthetic implants)

* Women who are pregnant or breast feeding or planning to become pregnant during the study.

* Positive serology for HIV and hepatitis

* Serious pre-existing medical conditions like Cardiovascular Diseases, Cancer, Renal Diseases, Endocrine Diseases and Autoimmune Diseases

* Participation in another clinical trial or treatment with a different investigational product within 3 months prior to inclusion in the study.

* Other pathologic conditions or circumstances that difficult participation in the study according to medical criteria.