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Semin Musculoskelet Radiol 2017; 21(02): 089-101
DOI: 10.1055/s-0037-1599207
Review Article
Thieme Medical Publishers 333 Seventh Avenue, New York, NY 10001, USA.

The Extensor Mechanism: Imaging and Intervention

Colm J. McMahon
1   Harvard Medical School, Beth Israel Deaconess Medical Center, Boston, Massachusetts
,
Arun Ramappa
1   Harvard Medical School, Beth Israel Deaconess Medical Center, Boston, Massachusetts
,
Kenneth Lee
2   Department of Radiology, University of Wisconsin School of Medicine and Public Health, Madison, Wisconsin
› Author Affiliations
Further Information

Publication History

Publication Date:
29 March 2017 (online)

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Abstract

We present an overview of imaging and intervention of the extensor mechanism of the knee. Particular focus is placed on the evaluation of patellofemoral tracking disorders, patellar and quadriceps tendinosis and tears, patellar fracture, lateral patellar condyle patellar friction syndrome, and prepatellar bursitis. Anatomical and biomechanical factors contributing to these disorders are considered. Imaging evaluation is presented in a clinical context, and therapeutic options for these disorders are discussed. Image-guided therapy options for symptomatic patellar tendinosis are also described and illustrated.

Keywords

patellofemoral pain syndrome - patellar ligament - patellar dislocation - tendinopathy - bursitis
 

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