Complete 180-Degree Dislocation of a Rotating Platform after Closed Reduction for Mobile Bearing Spinout

Corinne Sommi, MD; Victor J. Wu, MD; John Heffernan, MD; William Sherman, MD, MBA

Arthroplasty Today (Sep 2020)

Complete 180-Degree Dislocation of a Rotating Platform after Closed Reduction for Mobile Bearing Spinout

Corinne Sommi, MD,
Victor J. Wu, MD,
John Heffernan, MD,
William Sherman, MD, MBA

Affiliations

Corinne Sommi, MD: Corresponding author. 1430 Tulane Avenue, New Orleans, LA 70112-2632, USA. Tel.: +1 504 988 5192.; Tulane Dept of Orthopedics, Tulane University School of Medicine, New Orleans, LA, USA
Victor J. Wu, MD: Tulane Dept of Orthopedics, Tulane University School of Medicine, New Orleans, LA, USA
John Heffernan, MD: Tulane Dept of Orthopedics, Tulane University School of Medicine, New Orleans, LA, USA
William Sherman, MD, MBA: Tulane Dept of Orthopedics, Tulane University School of Medicine, New Orleans, LA, USA

Journal volume & issue: Vol. 6, no. 3
pp. 556 – 559

Abstract

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Rotating-platform total knee arthroplasty was designed to help decrease backside polyethylene wear and allow maximal conformity between the femoral and tibial components, but there have been multiple reports of dislocation and spinout of these implants. There are 4 case reports in the literature of knee dislocations with 180° rotation of the platform, 3 of which occurred during relocation attempts. This is only the second case in a posterior-stabilized mobile-bearing device. We present a case of complete 180° dislocation of a rotating platform after closed reduction in a posterior-stabilized total knee arthroplasty, with subsequent conversion to hinge knee arthroplasty.

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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