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The Knee

The Knee Downloaded from http://journals.lww.com/topicsinmri by BhDMf5ePHKbH4TTImqenVA5KvPVPZ0P5BEgU+IUTEfzO/GUWifn2IfwcEVVH9SSn on 06/04/2020 REVIEW ARTICLE William B. Morrison, MD* and Nancy Major, MD† fluid collections can also reveal a pattern of joint pathology and Abstract: Sports injuries at the knee are very common, not only in con- can help explain the patient's pain. tact sports such as football but also in sports with jumping and pivoting. In addition, overuse injuries can affect the tendons, ligaments, and bone Joint Effusion and Synovial Plicae with degeneration, friction, and stress response. Radiologists and sports medicine professionals should be familiar with the range of injury occur- Joint effusion is very common, and although nonspecific, its ring at the knee and patterns of injury that can be used to predict other more presence should suggest presence of trauma, internal derange- subtle pathology. These topics and others will be discussed. ment, or inflammatory arthritis. Rounding of the joint recesses is a sign of excess fluid. Hyperintensity of fluid on T1-weighted Key Words: knee images or a fluid-fluid level is associated with hemarthrosis in (TopMagnReson Imaging 2015;24: 193–203) the setting of acute trauma (Fig. 1). A sharply defined supernatant of fat signal represents a lipohemarthrosis, in which case an intraarticular fracture should http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Topics in Magnetic Resonance Imaging Wolters Kluwer Health

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References (40)

Publisher
Wolters Kluwer Health
ISSN
0899-3459
eISSN
1536-1004
DOI
10.1097/RMR.0000000000000059
Publisher site
See Article on Publisher Site

Abstract

Downloaded from http://journals.lww.com/topicsinmri by BhDMf5ePHKbH4TTImqenVA5KvPVPZ0P5BEgU+IUTEfzO/GUWifn2IfwcEVVH9SSn on 06/04/2020 REVIEW ARTICLE William B. Morrison, MD* and Nancy Major, MD† fluid collections can also reveal a pattern of joint pathology and Abstract: Sports injuries at the knee are very common, not only in con- can help explain the patient's pain. tact sports such as football but also in sports with jumping and pivoting. In addition, overuse injuries can affect the tendons, ligaments, and bone Joint Effusion and Synovial Plicae with degeneration, friction, and stress response. Radiologists and sports medicine professionals should be familiar with the range of injury occur- Joint effusion is very common, and although nonspecific, its ring at the knee and patterns of injury that can be used to predict other more presence should suggest presence of trauma, internal derange- subtle pathology. These topics and others will be discussed. ment, or inflammatory arthritis. Rounding of the joint recesses is a sign of excess fluid. Hyperintensity of fluid on T1-weighted Key Words: knee images or a fluid-fluid level is associated with hemarthrosis in (TopMagnReson Imaging 2015;24: 193–203) the setting of acute trauma (Fig. 1). A sharply defined supernatant of fat signal represents a lipohemarthrosis, in which case an intraarticular fracture should

Journal

Topics in Magnetic Resonance ImagingWolters Kluwer Health

Published: Aug 1, 2015

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