text sign showing avascular necrosis. conceptual photo death of bone tissue due to a lack of blood supply round

ache aid arthritis aseptic blood bone cartilage cause concept disease dissecans epiphysis fracture health healthcare hopeful infarction infection inflammation injury ischemic joint lumbar medical medicine necrosis orthopedic osteochondritis osteonecrosis pain pelvis scan scaphoid science sprain strain supply surgery technology vascular