MRI Visualization of Polyethylene Post Fractures in Posterior Stabilized Total Knee Arthroplasty

MRI Visualization of Polyethylene Post Fractures in Posterior Stabilized Total Knee Arthroplasty

Polyethylene post fracture is a recognized complication of posterior stabilized total knee arthroplasty. Two radiologists retrospectively reviewed MRI examinations in 19 reported post fractures in 18 patients; all fractures were subsequently confirmed surgically with no false positive cases. All pos...

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Veröffentlicht in:American journal of roentgenology (1976) 2021-10, Vol.217 (4), p.957-958
Hauptverfasser: Sahr, Meghan E, Potter, Hollis G, Endo, Yoshimi
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container_title American journal of roentgenology (1976)
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creator Sahr, Meghan E
Potter, Hollis G
Endo, Yoshimi
description Polyethylene post fracture is a recognized complication of posterior stabilized total knee arthroplasty. Two radiologists retrospectively reviewed MRI examinations in 19 reported post fractures in 18 patients; all fractures were subsequently confirmed surgically with no false positive cases. All post fractures were visualized as a combination of post deformity and signal void fragment in a joint recess. A metal artifact reduction 3D multispectral imaging sequence improved fracture visualization versus conventional sequences in 47% of cases.
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source American Roentgen Ray Society; Alma/SFX Local Collection
title MRI Visualization of Polyethylene Post Fractures in Posterior Stabilized Total Knee Arthroplasty
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