Proximal Femoral Varus Osteotomy Performed in the Early Stage of Legg-Calvé-Perthes Disease Increases Femoral Head Revascularization: A Serial Perfusion MRI Study.

The proximal femoral varus osteotomy group had faster revascularization and a shorter time to the late-reossification stage.

SIGNIFICANCE: This study is the first to investigate the effects of proximal femoral varus osteotomy on revascularization rate using serial MRI.

These findings provide novel insight into the biologic effect of proximal femoral varus osteotomy on femoral head revascularization. LEVEL OF EVIDENCE: Level IV, therapeutic.

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