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Meta-analysis results for AOFAS scores: (A) final AOFAS scores compared to MF only; (B) improvement of AOFAS scores compared to MF only; (C) final AOFAS scores compared to others group; (D) improvement of AOFAS scores compared to others group. AOFAS: American Orthopedic Foot and Ankle Society; MF: microfracture; PRP: plasma-rich platelet; SD: standard deviation.
