Incidence of Ceramic Liner Malseating in Trident® 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 کاملExtraction of a well fixed but fractured ceramic acetabular liner
Ceramic fractures have been reported to occur in hip replacements, but the techniques used to extract a well fixed but fractured component are not commonly described. We present a case of ceramic liner fracture and validate a modification of a previously reported extraction technique that allowed us to save the acetabular cup and insert a polyethylene liner. With an increasing trend in ceramic ...
متن کاملEffects of Acetabular Shell Deformation and Liner Thickness on Frictional Torque in Polyethylene Acetabular Bearings
Introduction: Studies have shown that frictional forces in an acetabular component during the gait cycle may be a contributing factor to acetabular shell loosening.1,2 Recent publications have indicated that metal shell deformation can cause secondary forces attributed to insertion technique of press-fit components.3,4 In addition, it is also recognized that larger diameter femoral heads offer ...
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 fractured and immovable ceramic liner in a screw-fixed acetabular shell during total hip arthroplasty: a case report.
We report a complication during total hip arthroplasty using an uncemented press-fit acetabular shell and ceramic liner for a woman with osteoarthritis. Fracture of the ceramic liner occurred during its insertion owing to non-concentric reduction. The main body of the ceramic liner became wedged in the acetabular shell and was resistant to removal. The shell itself was immovable owing to the pr...
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ژورنال
عنوان ژورنال: Clinical Orthopaedics and Related Research®
سال: 2009
ISSN: 0009-921X,1528-1132
DOI: 10.1007/s11999-009-0770-5