Apports de l'imagerie hybride TEMP/TDM dans le descellement aseptique de prothèse de hanche

Hip prosthesis loosening detection is a common indication for bone scan, however, the diagnosis can be difficult to confirm based solely on bone scan information which have a low specificity. The development of bone SPECT/CT hybrid imaging allows the correlation of two complementary modalities to palliate the low sensitivity of CT caused by metallic artefacts and the moderate specificity of bone scan. It becomes a necessity for nuclear medicine physicians to master the bases of pathological hip prosthesis radiological semiology. We propose in this review article to recall the physiopathology of prosthesis loosening then we will describe the radiological and scintigraphic characteristics of hip prosthesis loosening as well as its differential diagnoses and the benefits of other imaging modalities.