Department of Nuclear Medicine,All India Institute of Medical Sciences;
Department of Orthopedics,All India Institute of Medical Sciences;
Department of Orthopedics,Fortis Hospital;
Institute of Nuclear Imaging and Molecular Medicine,Tamilnadu Government Multi Super Specialty Hospital;
Department of Nuclear Medicine,PGI-MER;
Osteonecrosis; Avascular; necrosis; Bone; scan; Magnetic; resonance; imaging; Photon; emission; computed; tomography; scan; Single; photon; emission; computed; tomography/computed; tomography;