Bone and Joint Diseases

Osteonecrosis of the femoral head occurs when blood supply to the bone is disrupted, causing marrow and structural tissue to die and the hip joint to progressively collapse — a condition that disproportionately affects working-age adults and often leads to total hip replacement if caught late. Researchers study the underlying mechanisms, including how glucocorticoid use, coagulation abnormalities, and marrow fat accumulation conspire to compromise circulation within the femoral head, while MRI has become the preferred tool for detecting early lesions before irreversible damage sets in. Two central clinical questions drive current investigation: whether minimally invasive procedures like core decompression can reliably halt disease progression, and whether introducing autologous stem cells into the necrotic zone can stimulate meaningful bone regeneration rather than simply buying time. Establishing which patients respond to joint-preserving interventions — and why others do not — remains an open problem that sits at the intersection of vascular biology, orthopedic surgery, and regenerative medicine.

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411,403

Keywords

OsteonecrosisFemoral HeadBone MarrowTreatmentPathophysiologyMRI Imaging