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Case Reports
Incarceration of a dislocated mobile bearing to the popliteal fossa after unicompartmental knee arthroplasty.
- Jae-Heon Jeong, Hyun Kang, Yong-Chan Ha, and Eui-Chan Jang.
- Department of Orthopaedic Surgery, Chung-Ang University College of Medicine, Seoul, South Korea.
- J Arthroplasty. 2012 Feb 1;27(2):323.e5-7.
AbstractThe mobile meniscal bearing of unicompartmental knee arthroplasty is completely free moving, and dislocation of this bearing is a major concern for all mobile-bearing designs. Most dislocations are located in the intracapsular area; however, posterior dislocation of the polyethylene bearing to an extra-articular area of the knee after unicompartmental arthroplasty has not been previously reported. During a revision surgery, separate incision was necessary to remove a dislocated meniscal bearing in the popliteal fossa. The authors present a case of incarceration of a dislocated mobile bearing to the popliteal fossa after unicompartmental knee arthroplasty that was missed during initial diagnosis.Copyright © 2012 Elsevier Inc. All rights reserved.
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