Survival of uncemented acetabular monoblock cups
نویسندگان
چکیده
منابع مشابه
Survival of uncemented acetabular monoblock cups
BACKGROUND AND PURPOSE Monoblock acetabular cups represent a subtype of uncemented cups with the polyethylene liner molded into a metal shell, thus eliminating-or at least minimizing-potential backside wear. We hypothesized that the use of monoblock cups could reduce the incidence of osteolysis and aseptic loosening, and thus improve survival compared to modular designs. PATIENTS AND METHODS ...
متن کاملHedrocel trabecular metal monoblock acetabular cups: mid-term results.
The most important factors for long-term survival of cementless prostheses are the initial fixation, the osteoconducting properties of the metal shell and the bony response. Porous tantalum, a new biomaterial with a geometric structure similar to trabecular bone, was reported in animal studies to allow for bone ingrowth even when 3-mm gaps exist between the implant and the bone. This new materi...
متن کاملClinical and radiological outcome following total hip arthroplasty with an uncemented trabecular metal monoblock acetabular cup.
Uncemented acetabular components are associated with a significant incidence of polyethylene wear and secondary osteolysis. The new tantalum/polyethylene composite (Hedrocel) acetabular component is designed to reduce the polyethylene wear and to increase the longevity of the acetabular cups. We report our short- term clinical outcome and patient satisfaction following use of an uncemented tant...
متن کاملMonoblock versus modular polyethylene insert in uncemented total knee arthroplasty
Background and purpose - Backside wear of the polyethylene insert in total knee arthroplasty (TKA) can produce clinically significant levels of polyethylene debris, which can lead to loosening of the tibial component. Loosening due to polyethylene debris could theoretically be reduced in tibial components of monoblock polyethylene design, as there is no backside wear. We investigated the effect...
متن کاملIncreased migration of uncemented acetabular cups in female total hip arthroplasty patients with low systemic bone mineral density
BACKGROUND AND PURPOSE Low bone mineral density (BMD) may jeopardize the initial component stability and delay osseointegration of uncemented acetabular cups in total hip arthroplasty (THA). We measured the migration of uncemented cups in women with low or normal BMD. PATIENTS AND METHODS We used radiostereometric analysis (RSA) to measure the migration of hydroxyapatite-coated titanium alloy...
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ژورنال
عنوان ژورنال: Acta Orthopaedica
سال: 2012
ISSN: 1745-3674,1745-3682
DOI: 10.3109/17453674.2012.688726