Failure of a polyaryletheretherketone-cobalt-chromium composite femoral stem due to coating separation and subsidence: A case report

Meredith K. Bartelstein; Douglas W. Van Citters; Mitchell C. Weiser; Calin S. Moucha

doi:10.2106/JBJS.CC.16.00280

Failure of a polyaryletheretherketone-cobalt-chromium composite femoral stem due to coating separation and subsidence: A case report

Meredith K. Bartelstein, Douglas W. Van Citters, Mitchell C. Weiser, Calin S. Moucha

Research output: Contribution to journal › Article › peer-review

5 Scopus citations

Abstract

Case: A 52-year-old man who previously had undergone total hip arthroplasty with use of an Epoch (Zimmer) extensively porous-coated femoral stem presented with hip pain after a high-energy motor-vehicle accident. Radiographs demonstrated delamination at the polyaryletheretherketone-cobalt-chromium (PEEK-CoCr) core interface, which led to loosening. At revision, the implant demonstrated gross evidence of debonding at the PEEK-CoCr interface. Conclusion: We demonstrate clinical and tribologic evidence of a rare failure mode involving the PEEK-metal interface in a composite femoral stem, which surgeons should be aware of when evaluating patients with this type of implant.

Original language	English (US)
Article number	e83
Journal	JBJS Case Connector
Volume	7
Issue number	4
DOIs	https://doi.org/10.2106/JBJS.CC.16.00280
State	Published - Jan 1 2017
Externally published	Yes

ASJC Scopus subject areas

Surgery
Orthopedics and Sports Medicine

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abstract = "Case: A 52-year-old man who previously had undergone total hip arthroplasty with use of an Epoch (Zimmer) extensively porous-coated femoral stem presented with hip pain after a high-energy motor-vehicle accident. Radiographs demonstrated delamination at the polyaryletheretherketone-cobalt-chromium (PEEK-CoCr) core interface, which led to loosening. At revision, the implant demonstrated gross evidence of debonding at the PEEK-CoCr interface. Conclusion: We demonstrate clinical and tribologic evidence of a rare failure mode involving the PEEK-metal interface in a composite femoral stem, which surgeons should be aware of when evaluating patients with this type of implant.",

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AU - Weiser, Mitchell C.

AU - Moucha, Calin S.

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N2 - Case: A 52-year-old man who previously had undergone total hip arthroplasty with use of an Epoch (Zimmer) extensively porous-coated femoral stem presented with hip pain after a high-energy motor-vehicle accident. Radiographs demonstrated delamination at the polyaryletheretherketone-cobalt-chromium (PEEK-CoCr) core interface, which led to loosening. At revision, the implant demonstrated gross evidence of debonding at the PEEK-CoCr interface. Conclusion: We demonstrate clinical and tribologic evidence of a rare failure mode involving the PEEK-metal interface in a composite femoral stem, which surgeons should be aware of when evaluating patients with this type of implant.

AB - Case: A 52-year-old man who previously had undergone total hip arthroplasty with use of an Epoch (Zimmer) extensively porous-coated femoral stem presented with hip pain after a high-energy motor-vehicle accident. Radiographs demonstrated delamination at the polyaryletheretherketone-cobalt-chromium (PEEK-CoCr) core interface, which led to loosening. At revision, the implant demonstrated gross evidence of debonding at the PEEK-CoCr interface. Conclusion: We demonstrate clinical and tribologic evidence of a rare failure mode involving the PEEK-metal interface in a composite femoral stem, which surgeons should be aware of when evaluating patients with this type of implant.

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Failure of a polyaryletheretherketone-cobalt-chromium composite femoral stem due to coating separation and subsidence: A case report

Abstract

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