Canted seating of the Stryker Modular Dual Mobility liner within a Trident hemispherical acetabular shell

نویسندگان

  • Scott M. Eskildsen
  • Erik C. Olsson
  • Daniel J. Del Gaizo
چکیده

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 superiorly but was in a canted position inferiorly. Removal and replacement was performed and post-operative radiographs demonstrated complete seating. Subsequent follow up at 6 months demonstrated good clinical function with no adverse radiographic findings. Canted seating is a potential complication of the MDM metal liner. Providers should be aware of potential incomplete seating inferiorly despite the superior portion of the liner being well seated.

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عنوان ژورنال:

دوره 2  شماره 

صفحات  -

تاریخ انتشار 2016