Successful conservative management of symptomatic bilateral dorsal patellar defects presenting with cartilage involvement and bone marrow edema: MRI findings

Skeletal Radiology
Thomas C KweeMaarten Nix

Abstract

The dorsal patellar defect is a relatively rare entity that involves the superolateral quadrant of the patella. It is usually considered to represent a delayed ossification process, although its exact origin remains unclear. Because of its usually innocuous nature and clinical course, invasive interventions are generally deemed unnecessary, although curretage has been successfully performed on symptomatic cases. This case report presents a rather unusual case of symptomatic bilateral dorsal patellar defects with cartilage involvement and widespread surrounding bone marrow edema as demonstrated by magnetic resonance imaging (MRI). Both cartilage involvement and bone marrow edema should be considered part of the spectrum of associated MRI findings that can be encountered in this entity. Furthermore, the presented case shows that symptomatic dorsal patellar defects can be treated conservatively with success and that (decrease of) pain symptoms are likely related to (decrease of) bone marrow edema.

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Citations

Nov 19, 2016·Journal of the Belgian Society of Radiology·Filip VanhoenackerPieter Van Dyck
Oct 3, 2019·Magnetic Resonance Imaging Clinics of North America·Héloïse LerissonNathalie Boutry
Oct 25, 2021·Journal of Vascular and Interventional Radiology : JVIR·Pierre BoureilleSylvain Grange

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