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The reported event that during a variax clavicle surgery, a metal piece, like a wire, appeared when the surgeon was inserting an unknown screw into a ¿superior plate - decreased curvature variax clavicle 7 hole / right¿ could not be confirmed, since the devices were not returned for evaluation and no other evidences were provided.Since the actual plate was not returned, and the lot no was not communicated, a visual and manufacturing inspection could not be performed.However a potential mishandling of the devices could have led to this event.During tightening, the screw is usually under high tension.Such power, in combination with the existing rotational moves could potentially deform the threads of the screw or the surface of the plates` hole.This deformation could have translated into a complete detachment of the screw`s threads or the hole`s threaded surface, which could resulted into the appearance of a metal piece like a wire as it was reported.As stated in the ifu ((b)(4)): ¿ensure that you are familiar with the recommended uses, compatibility and correct handling of the instrument; please remember that product systems may be subject to alterations that affect the compatibility of the instrument with other instruments or with implants! [¿] avoid surface damage of implants.[¿] discard all damaged or mishandled implants.¿ nevertheless, it was also reported that the surgeon removed the metal piece, progressed with the surgery, and that both reported devices (plate and screw) were successfully implanted.Therefore the stripped event of the screws` threads or the plates` threaded surface cannot be confirmed.A review of the device history for the reported lot did not indicate any abnormalities.No corrective actions are required at this time.A review of the labeling did not indicate any abnormalities.No indications of material, manufacturing or design related problems were found during the investigation.If the device is returned or if any additional information is provided, the investigation will be reassessed.Based on the investigation, the potential root cause would be attributed to a user related issue.However, please note that more detailed information about the complaint event as well as the affected device must be available in order to determine the exact root cause of the complaint.If the device is returned or if any additional information is provided, the investigation will be reassessed.
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