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Imaging patellar complications after knee arthroplasty

Abstract The purpose of this study is to describe complications affecting the patella in patients with total or partial knee arthroplasty. We respectively analysed plain-film radiographs, as well as ultrasound images when acquired, in a consecutive series of 1272 patients. The mean interval from kne...

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Published in:	European journal of radiology 2008-03, Vol.65 (3), p.478-482
Main Authors:	Melloni, Pietro, Valls, Rafael, Veintemillas, Maite
Format:	Article
Language:	English
Subjects:	Aged Aged, 80 and over Arthroplasty, Replacement, Knee Biological and medical sciences Female Humans Investigative techniques, diagnostic techniques (general aspects) Knee arthroplasty Male Medical sciences Middle Aged Patella Patellar complications Postoperative Complications - diagnostic imaging Radiography Radiology Retrospective Studies Ultrasonography X-rays
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container_title	European journal of radiology
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creator	Melloni, Pietro Valls, Rafael Veintemillas, Maite
description	Abstract The purpose of this study is to describe complications affecting the patella in patients with total or partial knee arthroplasty. We respectively analysed plain-film radiographs, as well as ultrasound images when acquired, in a consecutive series of 1272 patients. The mean interval from knee replacement to patellar complications was 5 years and 7 months (range, 5 months to 14 years). The complications described include fracture, instability, dislocation or luxation, necrosis of the patella, infection of the patella, erosion of the patella, patellar impingement on the prosthesis and patellar or quadricipital tendon tear. We discuss the pathological imaging findings in the patella and their differential diagnosis after knee arthroplasty. Patellar complications after knee arthroplasty are uncommon but often potentially serious.
doi_str_mv	10.1016/j.ejrad.2007.04.018
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subjects	Aged Aged, 80 and over Arthroplasty, Replacement, Knee Biological and medical sciences Female Humans Investigative techniques, diagnostic techniques (general aspects) Knee arthroplasty Male Medical sciences Middle Aged Patella Patellar complications Postoperative Complications - diagnostic imaging Radiography Radiology Retrospective Studies Ultrasonography X-rays
title	Imaging patellar complications after knee arthroplasty
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