Metallosis following a dual coat porous hydroxyapatite shoulder hemiarthroplasty

Abstract

We report a case of metallosis following a shoulder hemiarthroplasty with a humeral component resurfacing shoulder replacement.

Arthroplasty-Related Pseudotumor of the Scapula: Case Report and Review of the Literature

“…Most case reports about ARMD at the shoulder are based on clinical descriptions of intraoperative metallosis. [13][14][15][16][17][18][19][20][21] Our patient presented with a large pseudotumor centered in the scapula that simulated the CT appearance of a malignant bone tumor, a radiologic finding not previously reported in the literature. The emphasis of previously published cases of ARMD in the setting of shoulder arthroplasty has focused on reporting the features of metallosis that clinically feature dark metallic staining, macroscopic debris, and visible signs of hardware failure in the intracapsular and extracapsular tissues encountered at the time of surgery.…”

“…The emphasis of previously published cases of ARMD in the setting of shoulder arthroplasty has focused on reporting the features of metallosis that clinically feature dark metallic staining, macroscopic debris, and visible signs of hardware failure in the intracapsular and extracapsular tissues encountered at the time of surgery. 13,15,16,20,21 Prior reports have not described imaging features of pseudotumor at the shoulder, but instead generally have described radiological signs of hardware fracture, There is no evidence of malignant cells identified in this sample. prosthesis mechanical wear, prosthesis malalignment, and periprosthetic osteolysis and erosion.…”

Energy Dispersive X-ray (EDX) microanalysis: A powerful tool in biomedical research and diagnosis

“…where they show a metallosis following a shoulder hemi - arthroplasty with a humeral component resurfacing shoulder replacement. 4 Moreover, the EDX microanalysis on the pathological deposition of calcium has been useful to characterize the differences in the elemental composition of breast calcifications, in particular the composition of benign and malignant lesions 5 or the tight association of asbestos nano-fibers and lung cancer cells. 6 In fact, EDX microanalysis has greatly improved the characterization of the asbestos isotype and shed new light in the study of the possible bioaccumulation of polluting agents in different human organs and systems.…”

Giant cell tumor formation due to metallosis after open latarjet and partial shoulder resurfacing

“…1 Only a few case reports exist in the literature that describe metallosis in the shoulder, but there is no report on metallosis and giant cell tumor formation in the shoulder joint after multiple complex shoulder revision surgeries. [2][3][4][5] We report a 43-year old female with a history of multiple revision surgeries done at outside hospital who presents to the senior author (XL) with chronic right shoulder pain due to post traumatic arthritis and advanced metallosis with giant cell tumor formation of the soft tissue. We describe the patient's clinical presentation, management and a review of the literature about metallosis and giant cell tumor formation after shoulder surgery.…”