Capillary Force-Driven Capture of Magnetic Nanoparticles in Calcium Phosphate Hollow-Tube Whisker Scaffolds for Osteonecrosis of the Femoral Head

revascularization, immunomodulation, and preservation of femoral head cartilage. Together, these findings support the clinical relevance of this magnetically responsive scaffold as a multifunctional strategy for delaying structural deterioration and facilitating comprehensive repair in SONFH.