The manufacturer did not receive devices, x-rays, or other source documents for review.As no lot numbers were provided for the devices, the device history records could not be reviewed.A cause for this specific event cannot be ascertained from the information provided.Should additional information become available and an investigation result be available, that changes this assessment, an amended medical device report will be submitted.(b)(4).
|
A technical investigation was not possible to perform, as the device was not at hand.However, based on the available information the investigation is conducted with outcome as follows.It was reported that an ankle fix plate was revised due to breakage.The patient was not forthcoming and was indeed still smoking a pack a day for the four months prior to the surgery.There was a non-union which caused the fracture and the surgeon did not put an interfragmentary screw in independently of the plate.Trend analysis: n/a as no reference number was available.The dhr check could not be performed as the lot number was not available.Neither x-rays, operative notes, office visit notes, nor devices or photos of the explanted implant were received; therefore the condition of the component is unknown.Patient factors that may affect the performance of the components such as bone quality, activity level, type of activity (low impact vs.High impact), and relevant medical history are unknown.Adherence to rehabilitation protocol is unknown.The event detail describes that the plate was broken due to non union, this information was provided by the surgeon.It is not known how long the plate was in vivo.Additional information has been requested but until today no answer has been received.In conclusion, due to significant lack of information, it is impossible to perform a meaningful analysis of the reported event.Based on the given information and the results of the investigation, the complaint could not be confirmed as the alleged failure could not be identified or reproduced.The need for corrective actions is not indicated and zimmer (b)(4) considers this case as closed.Zimmer's reference number of this file is (b)(4).
|