Volume 4, Issue 2, Pages (June 2018)

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Volume 4, Issue 2, Pages 148-152 (June 2018) Fracture of the insert cone of a polyethylene liner in a failed posterior-stabilized, rotating-platform total knee arthroplasty Marc R. Angerame, MD, Jason M. Jennings, MD, DPT, Douglas A. Dennis, MD Arthroplasty Today Volume 4, Issue 2, Pages 148-152 (June 2018) DOI: 10.1016/j.artd.2017.10.002 Copyright © 2017 The Authors Terms and Conditions

Figure 1 Coronal profile of the posterior-stabilized, rotating-platform polyethylene insert. Black arrow denotes insert cone. White arrow denotes tibial post. Arthroplasty Today 2018 4, 148-152DOI: (10.1016/j.artd.2017.10.002) Copyright © 2017 The Authors Terms and Conditions

Figure 2 Anteroposterior, lateral, and Merchant radiographs of the right total knee arthroplasty at the 9-year follow-up interval. Arthroplasty Today 2018 4, 148-152DOI: (10.1016/j.artd.2017.10.002) Copyright © 2017 The Authors Terms and Conditions

Figure 3 Anteroposterior, lateral, and Merchant views of the right total knee arthroplasty 11 years following operation. White arrow denotes osteolytic defect of the medial tibial plateau. Arthroplasty Today 2018 4, 148-152DOI: (10.1016/j.artd.2017.10.002) Copyright © 2017 The Authors Terms and Conditions

Figure 4 (a) Bird's eye view of broken polyethylene insert cone within a rotating-platform tibial tray. (b) Backside of the retrieved rotating-platform polyethylene tibial insert with delamination and a broken polyethylene insert cone. Arthroplasty Today 2018 4, 148-152DOI: (10.1016/j.artd.2017.10.002) Copyright © 2017 The Authors Terms and Conditions

Figure 5 (a) Anteroposterior, lateral, and Merchant views of the right revision total knee arthroplasty at the 5-week postoperative visit. (b) Anteroposterior, lateral, and Merchant views of the right revision total knee arthroplasty at the 1-year postoperative visit. Arthroplasty Today 2018 4, 148-152DOI: (10.1016/j.artd.2017.10.002) Copyright © 2017 The Authors Terms and Conditions