Metallosis after Exchange of the Femoral Head and Liner following Ceramic Acetabular Liner Dissociation in Total Hip Arthroplasty with a Modular Layered Acetabular Component

Figure 2

An anteroposterior view of plain radiograph (a) and a CT coronal image (b) showing the expanding retroacetabular osteolysis. A pseudotumor at the anterior aspect of the right hip (asterisk) connected to the hip joint was observed in a CT sagittal image (c). Pigmentation of metallic debris inside the osteolytic lesion and around the joint capsule and acetabulum was seen intraoperatively (d). A photograph of the retrieved cup (e) showing abrasion inside the metallic shell connecting to polyethylene liner (dotted circle).

(a)

(b)

(c)

(d)

(e)