Abstract
In this case report, we describe a cutaneous manifestation of extensive metallosis
in a patient 4 months post–metal-on-metal total hip arthroplasty with a Pinnacle cup
with dissociation of the liner from the shell and resultant stripe burnishing of the
shell and notch wear of the femoral neck. Dissociation of a metal liner has not been
previously reported with this implant. Cutaneous metallosis has only been reported
once in the literature. Clinicians should heighten their suspicion for metallosis
secondary to hardware failure when encountering patients with skin discoloration in
the setting of a painful and poorly functioning hip arthroplasty. In patients with
failure of a metal-on-metal prosthesis with a modular metal liner in the acetabular
component, liner dissociation must be considered.
Keywords
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Article info
Publication history
Published online: March 09, 2012
Accepted:
January 12,
2012
Received:
August 30,
2011
Footnotes
The Conflict of Interest statement associated with this article can be found at doi:10.1016/j.arth.2012.01.008.
Identification
Copyright
© 2012 Elsevier Inc. Published by Elsevier Inc. All rights reserved.
