Mechanically assisted crevice corrosion of the head-neck taper in a large head metal- on-metal total hip arthroplasty Joseph Moskal, MD, Matthew Stover,

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Presentation transcript:

Mechanically assisted crevice corrosion of the head-neck taper in a large head metal- on-metal total hip arthroplasty Joseph Moskal, MD, Matthew Stover, DO Arthroplasty Today Volume 1, Issue 4, Pages 103-106 (December 2015) DOI: 10.1016/j.artd.2015.03.005 Copyright © 2015 Terms and Conditions

Figure 1 Pre-surgical anteroposterior pelvis radiograph showing arthritic left hip. Arthroplasty Today 2015 1, 103-106DOI: (10.1016/j.artd.2015.03.005) Copyright © 2015 Terms and Conditions

Figure 2 2 week post-operative anteroposterior radiograph showing left MoM THA. Arthroplasty Today 2015 1, 103-106DOI: (10.1016/j.artd.2015.03.005) Copyright © 2015 Terms and Conditions

Figure 3 3 year post-operative anteroposterior radiograph. Arthroplasty Today 2015 1, 103-106DOI: (10.1016/j.artd.2015.03.005) Copyright © 2015 Terms and Conditions

Figure 4 5 year post-operative anteroposterior radiograph showing extensive osteolysis of the medial calcar. Arthroplasty Today 2015 1, 103-106DOI: (10.1016/j.artd.2015.03.005) Copyright © 2015 Terms and Conditions

Figure 5 Photograph showing brown-tinged aspirate from the left hip. Arthroplasty Today 2015 1, 103-106DOI: (10.1016/j.artd.2015.03.005) Copyright © 2015 Terms and Conditions

Figure 6 Photographs showing discoloration consistent with fretting and/ or corrosion of the female and male head-neck taper. Arthroplasty Today 2015 1, 103-106DOI: (10.1016/j.artd.2015.03.005) Copyright © 2015 Terms and Conditions