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Case Reports in Orthopedics
Volume 2016 (2016), Article ID 4749871, 5 pages
http://dx.doi.org/10.1155/2016/4749871
Case Report

Fabella Fractures after Total Knee Arthroplasty with Correction of Valgus Malalignment

1Department of Radiology and Nuclear Medicine, University Medical Center Utrecht, Heidelberglaan 100, 3584 CX Utrecht, Netherlands
2Department of Radiology, Meander Medical Center, Amersfoort, Netherlands
3Department of Orthopedics and Trauma, Meander Medical Center, Amersfoort, Netherlands

Received 22 October 2015; Accepted 27 April 2016

Academic Editor: Paul E. Di Cesare

Copyright © 2016 Thomas Christian Kwee et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

The incidence of fabella fractures is considered to be extremely low. This report presents two patients with femorotibial osteoarthritis and considerable preoperative valgus malalignment, who developed a fracture of the fabella (as demonstrated by radiography) after total knee arthroplasty with intraoperative correction of the valgus malalignment. Special attention should be paid to the fabella for not missing a fabella fracture in these patients.