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  • Title: Autologous bone marrow-derived CD133 cells with core decompression as a novel treatment method for femoral head osteonecrosis: a pilot study.
    Author: Emadedin M, Karimi S, Karimi A, Labibzadeh N, Niknejadi M, Baharvand H, Aghdami N.
    Journal: Cytotherapy; 2019 Jan; 21(1):107-112. PubMed ID: 30409698.
    Abstract:
    BACKGROUND: Avascular necrosis (AVN) of femoral head is a progressive bone disease due to ischemia of femoral head; patients experience pain and they can not do normal activity. There is not an effective way to treat the cause of this disease. In recent studies, treatment of this disease using pluripotent stem cell-derived mesenchyme is safe and effective, but this method needs more investigation. In this study, the safety and efficacy of CD133+ cells were evaluated as a novel method of stem cell therapy to treat AVN. METHODS: In this prospective quasi-experimental study, the participants were selected among patients with AVN who were referred to the Royan Cell Therapy Center. Autologous bone marrow-derived CD133+ cells were injected into the necrotic site of the femoral head during core decompression (CD). The Visual Analogue Scale (VAS), Harris Hip Score (HHS), Western Ontario and McMaster Universities Arthritis Index (WOMAC) and walking distance (WD) were measured before and 2, 6 and 12 months after CD. RESULTS: Overall, nine patients (six men and three women) were investigated in this study. Their mean age was 26 years old. All of them significantly improved in VAS, HHS, WOMAC and WD scores and they could do more activity without pain. Also, imaging findings demonstrated significant reductions in joint injuries. Significant complications were not seen in patients. DISCUSSION: This prospective quasi-experimental study demonstrated that, in patients with AVN, a single bone marrow-derived CD133+ cell injection into the necrotic site of the femoral head during CD is safe and effective in providing significant, clinically relevant pain relief and patients could do more activity over 2, 6 and 12 months. This pilot study suggested further clinical trials over an extended assessment period to approve bone marrow-derived CD133+ cell injection to treat AVN.
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