eng Science and Education Publishing American Journal of Medical Sciences and Medicine 2327-6657 2016-03-31 4 2 23 25 10.12691/ajmsm-4-2-1 AJMSM2016421 article Eshnazarov Kamolhuja Eshnazarovich 1 Jong Keun Seon seonbell@jnu.ac.kr 2 Department of Orthopedic Surgery, Shinchon Yonsei Hospital, Korea Department of Orthopedic Surgery, Chonnam National University Hospital, Korea Some reported bearing fractures are due to entrapment of the bearing between the femoral component and posterior edge of the tibial base plate in unstable meniscal -bearing design TKA. However, so far no cases of bearing fracture has been reported for the rotating platform or anteroposterior gliding designs of mobile bearing TKA. The authors describe two cases of polyethylene stress fracture after primary TKA using a cruciate-retaining floating platform mobile-bearing prosthesis (e.motion-FP, B.Braun-Aesculap, Tuttlingen, Germany), and includes a review of the pertinent literature and a discussion of possible fracture mechanisms. http://pubs.sciepub.com/ajmsm/4/2/1/ajmsm-4-2-1.pdf TKA Mobile-bearing polyethylene stress fracture