Systemic cobaltism manifesting as oral mucosal discoloration and metallic gustation after metal-on-metal hip resurfacing Joshua A. Shapiro, MD, Scott.

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Presentation transcript:

Systemic cobaltism manifesting as oral mucosal discoloration and metallic gustation after metal-on-metal hip resurfacing Joshua A. Shapiro, MD, Scott M. Eskildsen, MD, Daniel J. Del Gaizo, MD Arthroplasty Today Volume 4, Issue 4, Pages 436-440 (December 2018) DOI: 10.1016/j.artd.2018.06.005 Copyright © 2018 The Authors Terms and Conditions

Figure 1 Preoperative radiographs demonstrating MoM hip resurfacing, dated July 31, 2017. There is no evidence of calcar resorption or component loosening to suggest metallosis. There are prior suture anchors in the anterior pelvis from an unrelated surgery. Arthroplasty Today 2018 4, 436-440DOI: (10.1016/j.artd.2018.06.005) Copyright © 2018 The Authors Terms and Conditions

Figure 2 Clinical photograph of black discoloration of the patient’s tongue on June 15, 2017, coinciding with serum cobalt level of 39 ppb and chromium of 47.2 ppb. Arthroplasty Today 2018 4, 436-440DOI: (10.1016/j.artd.2018.06.005) Copyright © 2018 The Authors Terms and Conditions

Figure 3 Intraoperative photograph taken on August 8, 2017, of black-gray discoloration of periarticular tissue including fat, muscle, and capsule. Arthroplasty Today 2018 4, 436-440DOI: (10.1016/j.artd.2018.06.005) Copyright © 2018 The Authors Terms and Conditions

Figure 4 Clinical photograph of the patient’s resolved tongue coloration on August 21, 2017, after debridement and conversion arthroplasty, coinciding with serum cobalt 8.7 ppb and chromium 18.5 ppb. Arthroplasty Today 2018 4, 436-440DOI: (10.1016/j.artd.2018.06.005) Copyright © 2018 The Authors Terms and Conditions

Figure 5 Postoperative radiograph demonstrating CoP arthroplasty without adverse features, dated August 23, 2017. Arthroplasty Today 2018 4, 436-440DOI: (10.1016/j.artd.2018.06.005) Copyright © 2018 The Authors Terms and Conditions

Figure 6 Line chart depicting uptrend, preoperatively, and downtrend, postoperatively, of serum metal ion levels. The asterisk represents the date of conversion arthroplasty. Arthroplasty Today 2018 4, 436-440DOI: (10.1016/j.artd.2018.06.005) Copyright © 2018 The Authors Terms and Conditions