منابع مشابه
Corrosion of modular hip prostheses.
Nine uncemented hip prostheses of modular design were revised because of late infection (2 cases), femoral stem loosening or fracture (2), loosening of threaded cups (3) and protrusion of bipolar cups (2). At surgery we found tissue discoloration and macroscopic corrosion in four of the nine prostheses, located at the head-neck junction. Histological examination in most cases showed extensive n...
متن کاملMedium-term Outcomes of Cemented Prostheses and Cementless Modular Prostheses in Revision Total Hip Arthroplasty
There is an increasing trend towards cementless modular femoral prostheses for revision hip replacement surgery, especially in patients with severe proximal femoral bone defects. However, for minor femoral bone defects, the benefit of cementless modular is not clear. We designed a retrospective cross-sectional study to compare outcomes of the two femoral implant designs. There were no significa...
متن کاملCorrosion and adverse tissue reaction after modular unipolar hip hemiarthroplasty
Modern unipolar hip hemiarthroplasty, commonly used for displaced femoral neck fracture, is now modular, with both a variable length cobalt-chromium adapter-sleeve and large femoral head. Patients with these modular components may develop symptomatic trunnion corrosion, with elevated serum metal levels. We report the case of an 82-year-old woman, 5.5 years after a modular unipolar hip hemiarthr...
متن کاملOn Fixation of Hip Prostheses
.........................................................................................7 Introduction....................................................................................9 Femoral revision and allograft impaction ....................................9 Total hip replacement in young patients ...................................10 Hydroxyapatite coating of femoral stems...............
متن کاملQuantification of the Contact Area at the Head-Stem Taper Interface of Modular Hip Prostheses
Corrosion of modular taper junctions of hip implants may be associated with clinical failure. Taper design parameters, as well as the intraoperatively applied assembly forces, have been proposed to affect corrosion. Fretting corrosion is related to relative interface shear motion and fluid ingress, which may vary with contact force and area. It was hypothesised in this study that assembly force...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: The Journal of Bone and Joint Surgery. British volume
سال: 1991
ISSN: 0301-620X,2044-5377
DOI: 10.1302/0301-620x.73b4.2071637