Bead debonding from a modern cementless total hip femoral component with concomitant taper corrosion
نویسندگان
چکیده
We report a case of bead shedding from a cylindrical extensively porous-coated cementless femoral component with concomitant taper corrosion at the modular head-neck junction of a metal-on-polyethylene total hip prosthesis. The patient presented with chronic thigh pain 4 years after primary total hip arthroplasty, and radiographs revealed significant osteolysis and metallic debris around the femoral stem. Intraoperatively, the patient had a grossly loose femoral component with debonding of sintered beads from the femoral stem, as well as evidence of taper corrosion. We identify a failure of a modern beaded femoral component in conjunction with taper corrosion.
منابع مشابه
Fretting and Corrosion Damage at the Head-Neck Taper is Reduced with Ceramic Femoral Heads: A Retrieval Study
Introduction: Modular head-neck total hip arthroplasty (THA) offers several benefits for orthopaedic surgeons, including intraoperative flexibility and the ability to change the head at revision surgery [1]. However, modularity at the head-neck taper, especially the use of metallic heads and stems, can lead to fretting and corrosion at the taper junction, leading to metal ions and debris releas...
متن کاملCementless Hip Arthroplasty in Southern Iran, Midterm Outcome and Comparison of Two Designs
Background: Cementless hip prosthesis was designed to provide biologic fixation, without the use of cement. The second generation components have shown more reliable bone ingrowths and survival rates. We are reporting a midterm result of two designs of cementless prosthesis in a unique culture with different social habits and expectations.Methods: 52 primary cementless total hip arthroplasty in...
متن کاملEffect of Taper Design on Trunnionosis in Metal on Polyethylene Total Hip Arthroplasty.
This study examines how taper design affects corrosion and fretting at the head trunnion surface. All hip prostheses retrieved between 1999 and 2013 with 28mm/+0 heads were selected, resulting in 44 cobalt-chrome-on-polyethylene implants, representing six taper designs. Mean implantation time: 8.9±3.7years. The femoral head tapers were scored for fretting and corrosion using the Goldberg scale ...
متن کاملEvaluation and treatment of painful total hip arthroplasties with modular metal taper junctions.
Modern primary total hip arthroplasty femoral components have evolved to include modular necks. Subsequently, the additional taper junction provides another interface as a potential source for mechanically assisted crevice corrosion, which is a complex process involving fretting and crevice corrosion. Furthermore, it is becoming evident that an adverse local tissue reaction may result in some p...
متن کاملRetrieval analysis of metal and ceramic femoral heads on a single CoCr stem design
OBJECTIVES The use of ceramic femoral heads in total hip arthroplasty (THA) has increased due to their proven low bearing wear characteristics. Ceramic femoral heads are also thought to reduce wear and corrosion at the head-stem junction with titanium (Ti) stems when compared with metal heads. We sought to evaluate taper damage of ceramic compared with metal heads when paired with cobalt chromi...
متن کامل