title: Scintigraphic and X-ray arthrographic diagnosis of femoral prosthesis loosening: concise communication.
abstract: In order to determine loosening of femoral components of conventional total hip arthroplasties, a comparison of radionuclide (RA) and radiographic arthrograms (XA) was performed. The hips of 29 patients were studied with radiographic contrast and intraarticular Tc-99m sulfur colloid. The XAs were positive for loosening in 10/29 studies, whereas the RAs were positive in 19/29 studies. In five of ten in which both studies were positive, the RA showed femoral prosthesis loosening more clearly than the XA. By surgical follow-up, there were four false-negative XAs . Our data suggest that the RA is valuable in determining femoral component loosening.
mesh_terms: D000328:Adult; D003102:Colloids; D003974:Diatrizoate Meglumine; D005188:False Negative Reactions; D005189:False Positive Reactions; D005260:Female; D006621:Hip Joint / Q000000981:diagnostic imaging*; D006622:Hip Prosthesis / Q000009:adverse effects*; D006801:Humans; D008297:Male; D008875:Middle Aged; D011859:Radiography; D011877:Radionuclide Imaging; D013455:Sulfur; D013667:Technetium; D013671:Technetium Tc 99m Sulfur Colloid
chemical_list: D003102:Colloids; D003974:Diatrizoate Meglumine; D013671:Technetium Tc 99m Sulfur Colloid; D013455:Sulfur; D013667:Technetium