Incomplete Seating of Modular Dual Mobility Metal Liner within a Hemispherical Acetabular Shell
نویسندگان
چکیده
منابع مشابه
Canted seating of the Stryker Modular Dual Mobility liner within a Trident hemispherical acetabular shell
A 75-year-old woman who suffered a left femoral neck fracture underwent a left total hip arthroplasty using a Stryker Trident (Kalamazoo, MI) hemispherical acetabular shell and Modular Dual Mobility (MDM) metal liner. Post-operative radiographs demonstrated canted seating of the liner. The patient was taken immediately back to the operating room where the acetabular liner appeared well seated s...
متن کاملIncomplete seating of the liner with the Trident acetabular system: a cause for concern?
We reviewed the initial post-operative radiographs of the Trident acetabulum and identified a problem with seating of the metal-backed ceramic liner. We identified 117 hips in 113 patients who had undergone primary total hip replacement using the Trident shell with a metal-backed alumina liner. Of these, 19 (16.4%) were noted to have incomplete seating of the liner, as judged by plain anteropos...
متن کاملA biomechanical analysis of polyethylene liner cementation into a fixed metal acetabular shell.
BACKGROUND A common clinical scenario encountered by an orthopaedic surgeon is a patient with a secure cementless acetabular shell and a failed polyethylene liner. One treatment option is to cement a new liner into the fixed shell. The purpose of this study was to evaluate technical variables to improve the mechanical strength of such cemented liner constructs. METHODS The contributions of sh...
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Liner dissociation of polyethylene from a cementless acetabular socket following total hip arthroplasty (THA) is a rare complication. Cross-linked polyethylene liner dissociation from AMS-HA shell (KYOCERA Med, Osaka, Japan) occurred in 2 out of the 4153 (0.04%) cases approximately 10 years after undergoing surgery at our institute. First case was an 80-year-old female who underwent right THA a...
متن کاملCorrosion on the acetabular liner taper from retrieved modular metal-on-metal total hip replacements.
Eight retrieved metal-on-metal total hip replacements displayed corrosion damage along the cobalt-chromium alloy liner taper junction with the Ti alloy acetabular shell. Scanning electron microscopy indicated the primary mechanism of corrosion to be grain boundary and associated crevice corrosion, which was likely accelerated through mechanical micromotion and galvanic corrosion resulting from ...
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ژورنال
عنوان ژورنال: Kerala Journal of Orthopaedics
سال: 2020
ISSN: 2249-233X,2249-2348
DOI: 10.52314/kjo.2020.v33i01.13