title: 99mTc-methylene diphosphonate bone imaging in the evaluation of total hip prostheses.
abstract: A retrospective study was performed to determine the accuracy of 99mTc-methylene diphosphonate bone imaging in the evaluation of total hip arthrosplasty for lossening and/or infection. Using focally increased activity at the tip of the femoral component or in the region of the acetabular component as a criterion, the examination was 77% specific and 100% sensitive for loosening and/or infection. A possible explanation for the increased uptake at the tip of the femoral component and the role of this examination in the management of a painful total hip prosthesis are discussed.
mesh_terms: D001847:Bone Diseases / Q000000981:diagnostic imaging* / Q000209:etiology; D004164:Diphosphonates / Q000378:metabolism; D005069:Evaluation Studies as Topic; D005270:Femur Head / Q000378:metabolism; D006622:Hip Prosthesis / Q000009:adverse effects*; D006801:Humans; D007239:Infections / Q000000981:diagnostic imaging* / Q000209:etiology; D011877:Radionuclide Imaging; D012189:Retrospective Studies; D013667:Technetium / Q000378:metabolism
chemical_list: D004164:Diphosphonates; D013667:Technetium