Michael A. Yee, MD, Thomas J. O'Keefe, MD, Suzanne Winter, MS, CCRC

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Presentation transcript:

Incarcerated fracture fragments of Longevity polyethylene liners after total hip arthroplasty Michael A. Yee, MD, Thomas J. O'Keefe, MD, Suzanne Winter, MS, CCRC Arthroplasty Today Volume 2, Issue 1, Pages 6-10 (March 2016) DOI: 10.1016/j.artd.2015.12.006 Copyright © 2016 The Authors Terms and Conditions

Figure 1 Case 1: Initial postoperative right hip radiograph. Arthroplasty Today 2016 2, 6-10DOI: (10.1016/j.artd.2015.12.006) Copyright © 2016 The Authors Terms and Conditions

Figure 2 Case 1: Anteroposterior hip radiographs. (a) Dislocation of the right hip. (b) Interval relocation of the femoral head within the acetabular cup. The head is subtly eccentric and proud in comparison to the initial postoperative radiograph. Arthroplasty Today 2016 2, 6-10DOI: (10.1016/j.artd.2015.12.006) Copyright © 2016 The Authors Terms and Conditions

Figure 3 Case 1: Intraoperative picture during right THA revision showing a posterosuperior defect in the acetabular liner. The fracture fragment has been removed from its position interposed between the head and cup. Arthroplasty Today 2016 2, 6-10DOI: (10.1016/j.artd.2015.12.006) Copyright © 2016 The Authors Terms and Conditions

Figure 4 Case 1: Postoperative right hip radiograph after revision to a constrained liner. Arthroplasty Today 2016 2, 6-10DOI: (10.1016/j.artd.2015.12.006) Copyright © 2016 The Authors Terms and Conditions

Figure 5 Case 2: Initial postoperative right hip radiograph. Arthroplasty Today 2016 2, 6-10DOI: (10.1016/j.artd.2015.12.006) Copyright © 2016 The Authors Terms and Conditions

Figure 6 Case 2: Anteroposterior hip radiographs. (a) Dislocation of the right hip. (b) Interval relocation of the femoral head within the acetabular cup. The head is concentrically reduced but proud of the initial postoperative position. Arthroplasty Today 2016 2, 6-10DOI: (10.1016/j.artd.2015.12.006) Copyright © 2016 The Authors Terms and Conditions

Figure 7 Case 2: Highly cross-linked polyethylene acetabular liner with posterior rim fracture fragment. Intraoperatively, the fragment was found incarcerated between the liner and the femoral head. Arthroplasty Today 2016 2, 6-10DOI: (10.1016/j.artd.2015.12.006) Copyright © 2016 The Authors Terms and Conditions

Figure 8 Case 2: Postoperative right hip radiograph after acetabular revision with correction of the abduction angle and liner replacement. Arthroplasty Today 2016 2, 6-10DOI: (10.1016/j.artd.2015.12.006) Copyright © 2016 The Authors Terms and Conditions