Current information is insufficient to permit a conclusion as to the cause of the event.Review of device history records show that lot released with no recorded anomaly or deviation.There are warnings in the package insert that state that this type of event can occur: under possible adverse effects, number 9 states, "fatigue fracture of component can occur as a result of loss of fixation, strenuous activity, malalignment, trauma, non-union, and/or excessive weight." number 11 states, "wear and/or deformation of articulating surfaces." number 14 states, "postoperative bone fracture and pain." this report is number 3 of 4 mdrs filed for the same patient (reference 3002806535-2016-00830 and 1825034-2016-04651 / 04653).
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Patient underwent a hip revision procedure approximately 19 months post-implantation due to pain, fractured locking ring, fractured liner, and the head wearing through the liner, creating metallosis and grey tissue/fluid that had to be removed.
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