Fracture of an uncemented tantalum patellar component

Nathan L. Grimm, MD; Robert A. Henderson, MD, MSc; Joseph J. Kavolus, MD, MSCR; Patrick D. Millikan, MD; Paul F. Lachiewicz, MD

doi:10.1016/j.artd.2016.01.005

Arthroplasty Today (Jun 2016)

Fracture of an uncemented tantalum patellar component

Nathan L. Grimm, MD,
Robert A. Henderson, MD, MSc,
Joseph J. Kavolus, MD, MSCR,
Patrick D. Millikan, MD,
Paul F. Lachiewicz, MD

Affiliations

Nathan L. Grimm, MD: Department of Orthopaedic Surgery, Duke University Medical Center, Durham, NC, USA
Robert A. Henderson, MD, MSc: Department of Orthopaedic Surgery, Duke University Medical Center, Durham, NC, USA
Joseph J. Kavolus, MD, MSCR: Department of Orthopaedic Surgery, Duke University Medical Center, Durham, NC, USA
Patrick D. Millikan, MD: Department of Orthopaedic Surgery, Duke University Medical Center, Durham, NC, USA
Paul F. Lachiewicz, MD: Department of Orthopaedic Surgery, Durham VA Medical Center, Durham, NC, USA

DOI: https://doi.org/10.1016/j.artd.2016.01.005
Journal volume & issue: Vol. 2, no. 2
pp. 45 – 47

Abstract

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A 62-year-old man presented with the acute, atraumatic onset of pain 3 years after uncemented right total knee arthroplasty. He complained of new mechanical locking with the knee held in extension on examination and unable to flex the knee. On the plain radiographs, the patellar component peg was fractured and the plate was dislocated. The knee was immobilized, and revision to a cemented 3-peg component was performed. Fracture of a single-peg, tantalum-backed uncemented patellar component has not been described. Clinical suspicion for this should be given in the setting of acute locking. We recommend revision with a cemented polyethylene component.

Published in Arthroplasty Today

ISSN: 2352-3441 (Online)
Publisher: Elsevier
Country of publisher: United States
LCC subjects: Medicine: Surgery: Orthopedic surgery
Website: https://www.journals.elsevier.com/arthroplasty-today/

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Abstract

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