The Journal of Knee Surgery Reports 2015; 1(01): 017-020
DOI: 10.1055/s-0034-1399760
Case Report
Thieme Medical Publishers 333 Seventh Avenue, New York, NY 10001, USA.

Massive Ossification of the Patellar Fat Pad: An Unusual Cause of Knee Stiffness

Cara Cipriano
1   Department of Orthopaedic Surgery, Rush University Medical Center, Chicago, Illinois
,
Nathan A. Mall
2   Regeneration Orthopedics, St. Louis, Missouri
,
Michael J. Salata
3   Department of Orthopedic Surgery, University Hospitals Case Medical Center, Cleveland, Ohio
,
Steven Gitelis
1   Department of Orthopaedic Surgery, Rush University Medical Center, Chicago, Illinois
,
Bernard R. Bach Jr.
1   Department of Orthopaedic Surgery, Rush University Medical Center, Chicago, Illinois
› Author Affiliations
Further Information

Publication History

20 December 2013

12 July 2014

Publication Date:
02 February 2015 (online)

Abstract

While stiffness following an injury is usually secondary to soft tissue scarring, a variety of different benign and malignant lesions may restrict range of motion about the knee. We report the unusual case of a patient who presented with a chronic knee extension contracture secondary to a large ossified mass in the anterior aspect of the knee. Radiographs, magnetic resonance imaging, and subsequent histopathology were consistent with a diagnosis of myositis ossificans of the fat pad. Subsequent resection resulted in full motion recovery and resolution of symptoms at 30-month follow-up.

 
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