Focal lytic lesions associated with femoral stem loosening in total hip prosthesis
نویسندگان
چکیده
منابع مشابه
Theoretical and practical aspects in total uncemented hip arthroplasty by using short femoral stem prosthesis
Hip arthrosis, primary or secondary, is an osteoarthritic degenerative process that affects the hip joint. Primary hip arthrosis has an unknown etiology, and secondary hip arthrosis has well defined causes; of these causes, some are known to lead to arthrosis of the hip in the young age patient. The surgical treatment aims either to preserve the patient’s hip joint, or to replace the joint. The...
متن کاملFemoral stem wear in cemented total hip replacement.
The great success of cemented total hip replacement to treat patients with endstage osteoarthritis and osteonecrosis has been well documented. However, its long-term survivorship has been compromised by progressive development of aseptic loosening, and few hip prostheses could survive beyond 25 years. Aseptic loosening is mainly attributed to bone resorption which is activated by an in-vivo mac...
متن کاملNuclear arthrography: combined scintigraphic and radiographic procedure for diagnosis of total hip prosthesis loosening.
UNLABELLED Radiographic arthrography and bone scintigraphy are common diagnostic procedures used for evaluating total hip prostheses. In this study, both techniques are combined, and nuclear contrast imaging (nuclear arthrography) is added. The efficacy of the procedures is evaluated. METHODS After intravenous injection of 99mTc-methylene diphosphonate (MDP), standard radiographic arthrograph...
متن کاملEarly femoral loosening in one design of cemented hip replacement.
We have studied aseptic loosening of the femoral component in 76 patients with primary total hip replacement using the Capital prosthesis. The mean follow-up was 26 months (10 to 37). Twelve femoral components (16%) were definitely and eight (10%) were possibly loose. They were characterised by a thin cement mantle (p < 0.001) and excessive residual cancellous bone in the proximomedial region (...
متن کاملFinite Element Analysis Into Eigenfrequencies of a Total Hip Stem with Different Levels of Loosening
A finite element model of a total hip replacement (THR) has been developed from the approach of modal analysis. The model is capable of determining the first 15 Eigenmodes of a THR with an artificial bone model. The model was equipped with several different defects to simulate a loosening of THR and to enforce a shifting of the frequency spectrum of the system’s Eigenfrequencies. Using the prel...
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ژورنال
عنوان ژورنال: American Journal of Roentgenology
سال: 1985
ISSN: 0361-803X,1546-3141
DOI: 10.2214/ajr.144.5.977