• J Clin Ultrasound · Feb 2017

    Case Reports

    Sonographic evaluation of patellar clunk syndrome following total knee arthroplasty.

    • Christian Geannette, Theodore Miller, Gregory Saboeiro, and Michael Parks.
    • Hospital for Special Surgery, Department of Radiology and Imaging, 535 East 70th Street, New York, New York, 10021.
    • J Clin Ultrasound. 2017 Feb 1; 45 (2): 105-107.

    AbstractPatellar clunk syndrome is a painful mechanical phenomenon that may develop following total knee arthroplasty. The diagnosis is usually made clinically, but cross-sectional imaging may be needed to confirm the clinical suspicion. Sonographic confirmation of patellar clunk syndrome can be obtained by directly visualizing the soft tissue proliferation deep to the distal quadriceps tendon and by dynamically demonstrating the clunking tissue during flexion and extension of the knee. © 2016 Wiley Periodicals, Inc. J Clin Ultrasound 45:105-107, 2017.© 2016 Wiley Periodicals, Inc.

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