Inferior Survival of Hydroxyapatite versus Titanium-coated Cups at 15 Years
نویسندگان
چکیده
منابع مشابه
No superior performance of hydroxyapatite-coated acetabular cups over porous-coated cups
BACKGROUND AND PURPOSE Hydroxyapatite (HA) coating is believed to improve bone-implant ingrowth and long-term survival of prostheses. Recent studies, however, have challenged this view. Furthermore, HA particles may produce third-body wear and initiate aseptic loosening of implants. We report the performance of HA- and porous-coated acetabular cups in a prospective randomized trial. METHODS T...
متن کاملIncreased risk of revision of acetabular cups coated with hydroxyapatite
BACKGROUND Hydroxyapatite (HA) is the main inorganic component of bone, and HA coating is widely used on acetabular cups in hip arthroplasty. It has been suggested that this surface finish improves cup survival. METHODS All patients registered in the Swedish Hip Arthroplasty Register between 1992 and 2007 with an uncemented acetabular implant that was available either with or without HA coati...
متن کاملFailure of dual radius hydroxyapatite-coated acetabular cups
INTRODUCTION Many kind of hydroxyapatite-coated cups were used, with favorable results in short term studies; it was supposed that its use could improve osteointegration of the cup, enhancing thus stability and survivorship. The purpose of this study is to analyze the long term behavior of the hemispheric HA coated, Dual Radius Osteonics cup and to discuss the way of failure through the exam of...
متن کاملHydroxyapatite-coated total knee replacement: clinical experience at 10 to 15 years.
This study describes 146 primary total knee replacements, either fully or partially coated with hydroxyapatite of which 74 knees in 68 patients were available for clinical and radiological assessment at a mean of 11.2 years (10 to 15). The global failure rate was 1.37% and survival rate with mechanical failure as the end-point was 98.14%. Radiological assessment indicated intimate contact betwe...
متن کاملThe performance of two hydroxyapatite-coated acetabular cups compared with Charnley cups. From the Norwegian Arthroplasty Register.
We have compared the survival of two hydroxyapatite (HA)-coated cups, 1208 Atoll hemispheric and 2641 Tropic threaded, with cemented Charnley all-polyethylene cups (16 021) using the Cox regression model. The Tropic cup used in combination with an alumina ceramic femoral head, had good results, similar to those of the Charnley cup. When used in combination with a stainless-steel head, however, ...
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ژورنال
عنوان ژورنال: Clinical Orthopaedics & Related Research
سال: 2009
ISSN: 0009-921X
DOI: 10.1007/s11999-009-0796-8