Open Access
CC BY-NC-ND 4.0 · Joints 2019; 07(04): 209-214
DOI: 10.1055/s-0041-1730980
Case Report

Irreducible Posterolateral Fracture Dislocation of the Knee in an Elderly Patient Treated with Rotating Hinge Total Knee Replacement

1   Department of Orthopedic Surgery, University of Rome Tor Vergata, Rome, Italy
,
Maria Teresa Manisera
1   Department of Orthopedic Surgery, University of Rome Tor Vergata, Rome, Italy
,
Alexander Vallone
1   Department of Orthopedic Surgery, University of Rome Tor Vergata, Rome, Italy
,
1   Department of Orthopedic Surgery, University of Rome Tor Vergata, Rome, Italy
› Institutsangaben

Funding None.
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Abstract

Knee dislocation is one of the few real orthopaedic emergencies. It is a serious but relative uncommon injury, representing less than 0.02% of all orthopaedic injuries. Especially posterolateral knee dislocation is much rarer condition that is often missed or misdiagnosed. The main feature of this very rare condition is to be irreducible by closed reduction due to the interposition of soft tissues inside the enlarged medial joint space, such as the medial capsule and retinaculum, vastusmedialis, and medial meniscus. The pathognomonic sign of a posterolateral knee dislocation is the anteromedial distal thigh transverse “pucker” or “dimple sign.” We report the case of an 87-year-old man who sustained an irreducible posterolateral fracture dislocation of the knee after being hit by car which has been treated with rotating hinge knee replacement with 1-year of follow-up.

Ethical Approval

The patient gave written informed consent prior being included in the case report.




Publikationsverlauf

Eingereicht: 08. April 2018

Angenommen: 18. April 2021

Artikel online veröffentlicht:
18. Juni 2021

© 2021. The Author(s). This is an open access article published by Thieme under the terms of the Creative Commons Attribution-NonDerivative-NonCommercial-License, permitting copying and reproduction so long as the original work is given appropriate credit. Contents may not be used for commercial purposes, or adapted, remixed, transformed or built upon. (https://creativecommons.org/licenses/by-nc-nd/4.0/).

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