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Fig. 7 | Journal of Orthopaedic Surgery and Research

Fig. 7

From: Study on the outcome of patients with aseptic femoral head necrosis treated with percutaneous multiple small-diameter drilling core decompression: a retrospective cohort study based on magnetic resonance imaging and equivalent sphere model analysis

Fig. 7

Volume and distribution of the femoral head necrosis area at the 6th month after the operation. Anterior superior medial (ASM), posterior superior medial (PSM), anterior superior lateral (ASL), posterior superior lateral (PSL), anterior inferior medial (AIM), posterior inferior medial (PIM), anterior inferior lateral (AIL), posterior inferior lateral (PIL). AFHN: alcoholic femoral head necrosis; SIFHN: steroid-induced femoral head necrosis; IFHN: idiopathic femoral head necrosis

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