Avascular necrosis of femoral head
Football player with bilateral hip pain.
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The patient was found to have sickle cell disease.
Bilateral hip avascular necrosis more advanced on the left side which displays structural collapse and secondary degenerative arthritis. On the right side there is crescent sign of femoral head with marrow edema extending to the neck. Bilateral hip joint effusion more ont he right side.
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Features consistent of bilateral femoral head avascular necrosis; grade III on the right side and IV on the left side.
Sickle cell disease is a risk factor for interrupting the blood supply of the femur and developing osteonecrosis of femoral head.
- Khanna AJ, Yoon TR, Mont MA et-al. Femoral head osteonecrosis: detection and grading by using a rapid MR imaging protocol. Radiology. 2000;217 (1): 188-92. Radiology (full text) - Pubmed citation
- Stoller D, Tirman P, Bredella M et-al. Diagnostic imaging. AMIRSYS. (2004) ISBN:0721629202. Read it at Google Books - Find it at Amazon