Failure at the Taper Lock of a Modular Stemmed Femoral Implant in Revision Knee Arthroplasty: A Report of Two Cases and a Retrieval Analysis

Issack, Paul S.; Cottrell, Jocelyn M.; Delgado, Samuel; Wright, Timothy M.; Sculco, Thomas P.; Su, Edwin P.
October 2007
Journal of Bone & Joint Surgery, American Volume;Oct2007, Vol. 89-A Issue 10, p2271
Academic Journal
Case Study
The article reports on two cases of patients who had failure in the male portion of the taper lock between the femoral component and the stem extension of the Optetrak stemmed constrained femoral implant in revision knee arthroplasty. Both cases underwent second revision arthroplasty, during which gross loosening of the femoral components was noted along with a fracture through the male portion of the taper lock. Symptoms on both was resolved after surgery.


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