Femoral stem-bone interface analysis of logical uncemented stem
نویسندگان
چکیده
منابع مشابه
Periprosthetic bone loss after insertion of an uncemented, customized femoral stem and an uncemented anatomical stem
BACKGROUND AND PURPOSE Customized femoral stems are designed to have a perfect fit and fill in the femur in order to achieve physiological load transfer and minimize stress shielding. Dual-energy X-ray absorptiometry (DXA) is regarded as an accurate method for detection of small alterations in bone mineral density (BMD) around hip prostheses. We present medium-term DXA results from a randomized...
متن کاملMeasurement of early bone loss around an uncemented femoral stem
BACKGROUND AND PURPOSE Dual-energy X-ray absorptiometry (DXA) is a precise method to study changes in bone mineral density (BMD), including the pattern of bone remodeling around an implant. Results from implant studies are usually presented as changes in BMD as a function of time. The baseline and reference value for such calculations is the first measurement after the operation. The baseline m...
متن کاملProgressive femoral cortical and cancellous bone density loss after uncemented tapered-design stem fixation
BACKGROUND Aseptic implant loosening and periprosthetic bone loss are major problems after total hip arthroplasty (THA). We present an in vivo method of computed tomography (CT) assisted osteodensitometry after THA that differentiates between cortical and cancellous bone density (BD) and area around the femoral component. METHOD Cortical and cancellous periprosthetic femoral BD (mg CaHA/mL), ...
متن کاملBone remodelling after total hip arthroplasty using an uncemented anatomic femoral stem: a three-year prospective study using bone densitometry.
PURPOSE To evaluate the clinical, radiological, and densitometric changes in the bone-remodelling patterns of femoral stems aligned in neutral, valgus, or varus positions. METHODS Between February and October 2000, 70 patients underwent unilateral total hip arthroplasty for primary osteoarthritis using an uncemented Anatomique Benoist Girard (ABG) II stem. 69 patients (30 males and 39 females...
متن کاملLower reoperation rate for cemented femoral stem than for uncemented femoral stem in primary total hip arthroplasty following a displaced femoral neck fracture
INTRODUCTION Acute displaced femoral neck fractures are often treated with cemented hemiarthroplasty (HA). There is increasing evidence that total hip arthroplasty (THA) may be a better alternative, but the degree to which the fixation of the femoral stem used affects the outcome is not fully known. The aim of this study is to compare rates of operative complications and implant survival follow...
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ژورنال
عنوان ژورنال: Revista Brasileira de Engenharia Biomédica
سال: 2012
ISSN: 1517-3151,1984-7742
DOI: 10.4322/rbeb.2012.031