1. Osteonecrosis often begins insidiously and is difficult or impossible to diagnose with conventional radiography and computed tomography in the early stages.

2. Therapy Insight: osteoporosis and osteonecrosis in systemic lupus erythematosus.

3. Osteonecrosis is defined as cell death of the components of bone.

3. try its best to collect and create good sentences.

4. One case developed osteonecrosis head requiring total hip arthroplasty 2 years after the index procedure.

5. Other methods should be combined arthroscopy to treat osteonecrosis of the femoral head.

6. Conclusion Femoral head osteonecrosis can be treated with trephination decompression of femoral head and infusion of cell suspension into femoral head of rabbits.

7. Vertebral fracture be due to osteolysis, osteonecrosis, or osteosclerosis can have heterogeneous bone structure.

8. Objective To assess the value of total hip arthroplasty in steroid - induced and traumatic femoral head osteonecrosis.

9. Methods Cryopreserved allogeneic lunate bone transplantation was applied to 6 cases of aseptic lunate osteonecrosis who were followed up more than 10 years.

10. Conclusion total hip arthroplasty in steroid - induced femoral head osteonecrosis has less value than in traumatic cases.

11. Note the wedge - shaped area of avascular necrosis ( osteonecrosis ) at the upper right of this femoral head.

12. Conclusion The vasoconstrictive action of steroid leads to femoral head artery spasmodic contraction, tissue ischemia and osteonecrosis.

13. Glucocorticoid a predisposing factor most commonly associated with the development of nontraumatic osteonecrosis ( ON ) .