Analysis of the efficacy of autologous adipose-derived stromal vascular fraction and calcium phosphate bone cement combined with core decompression in patients with femoral head necrosis: a retrospective study.

BMC Musculoskelet Disord · 2026 · PMC13069780 · PMID 41782103

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did not reach statistical significanceno p-value reported

Although higher hazard ratios were observed for ARCO stage IIIB and IV, these associations did not reach statistical significance, likely due to limited sample size.

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showed a trendno p-value reported

In advanced-stage disease (ARCO IIIB/IV), the combined-treatment group showed a trend toward improved hip survival; however, this comparison was underpowered due to limited sample size (Fig. 5 D).

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