Canted seating of the Stryker Modular Dual Mobility liner within a Trident hemispherical acetabular shell Scott M. Eskildsen, MD, Erik C. Olsson, MD,

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Presentation transcript:

Canted seating of the Stryker Modular Dual Mobility liner within a Trident hemispherical acetabular shell Scott M. Eskildsen, MD, Erik C. Olsson, MD, Daniel J. Del Gaizo, MD Arthroplasty Today Volume 2, Issue 1, Pages 19-22 (March 2016) DOI: 10.1016/j.artd.2015.05.003 Copyright © 2016 Terms and Conditions

Figure 1 Radiograph of a 75 year-old woman with a displaced femoral neck fracture. Arthroplasty Today 2016 2, 19-22DOI: (10.1016/j.artd.2015.05.003) Copyright © 2016 Terms and Conditions

Figure 2 Postoperative portable AP x-ray of the left hip demonstrating incomplete seating of the MDM liner. Arthroplasty Today 2016 2, 19-22DOI: (10.1016/j.artd.2015.05.003) Copyright © 2016 Terms and Conditions

Figure 3 Anteroposterior radiograph of the left hip at six months after revision left hip Arthroplasty with MDM liner and no further complications. Arthroplasty Today 2016 2, 19-22DOI: (10.1016/j.artd.2015.05.003) Copyright © 2016 Terms and Conditions

Figure 4 MDM (a) and Trident (b) ceramic liner. Both components have similar grooves and tapered locking mechanism. The MDM liner has the addition of tabs. Arthroplasty Today 2016 2, 19-22DOI: (10.1016/j.artd.2015.05.003) Copyright © 2016 Terms and Conditions

Figure 5 (a and b) (upper row)-Superior view of MDM liner appearing completely seated as would be seen in a posterior approach. (c) (lower left)-Lateral view shows transition from well seated to malseating. (d) (lower right)-Inferior view showing obvious malseating of the liner that can be difficult to detect intraoperatively. Arthroplasty Today 2016 2, 19-22DOI: (10.1016/j.artd.2015.05.003) Copyright © 2016 Terms and Conditions