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Year : 2016  |  Volume : 50  |  Issue : 4  |  Page : 359-365

Management of osteonecrosis of the femoral head: A novel technique

Department of Orthopedics, Tanta University, Tanta, Egypt

Correspondence Address:
Ahmed M Samy
150 Elgeesh Street, Gharbia, Tanta
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/0019-5413.185590

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Background: Osteonecrosis of the femoral head (ONFH) is a debilitating disease in orthopedics, frequently progressing to femoral head collapse and osteoarthritis. It is thought to be a multifactorial disease. ONFH ultimately results in femoral head collapse in 75-85% of untreated patients. Total hip arthroplasty (THA) yields satisfactory results in the treatment of the end stage of the disease. However, disease typically affects males between the ages of 20 and 40 years and joint replacement is not the ideal option for younger patients. Recently, mesenchymal stem cells and platelet rich plasma (PRP) have been used as an adjunct to core decompression to improve clinical success in the treatment of precollapse hips. Materials and Methods: A prospective study of 40 hips in 30 patients was done. There were 19 males and 11 females with a mean age 36.7 ± 6.93 years. The indication for the operation was restricted primarily to modified Ficat stages IIb and III. 16 hips (40%) had stage IIb and 24 hips (60%) had stage III ONFH. The period of follow up ranged between 36-50 months with a mean 41.4 ± 3.53 months. All patients were assessed clinically during pre- and post-operative period according to the Harris Hip Score (HHS), Visual Analog Score (VAS) and radiologically by X-rays. Magnetic resonance imaging (MRI) was done preoperatively to confirm the diagnosis and every 6 months postoperatively for assessment of healing. The operative procedure include removal of necrotic area with drilling then the cavity was filled with a composite of bone graft mixed with PRP. Results: The mean HHS improved from 46.0 ± 7.8 preoperatively to 90.28 ± 19 at the end of followup ( P < 0.0001). The mean values of VAS were 78 ± 21 and 35 ± 19 at preoperatively period and final followup, respectively, with an average reduction of 43 points. Conclusion: We found that the use of PRP with collagen sheet can increase the reparable capacity after drilling of necrotic segment in stage IIb and III ONFH.

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