Examination is not possible, as the device has not been returned.Without the return of the device in question a root cause for this incident cannot be determined.A review of the device history records and quality records associated with this manufactured lot confirmed that no additional complaints have been filed and that no abnormalities were reported with this product lot during manufacture.The surgeon determined that the distal lower tip of the duckling upbiter that broke during a meniscectomy could not be removed due to its location.It is reported that the retained fragment was observed on x-ray to be in the posterior part of the articulation in the knee.There are no radiographs or medical documentation provided for review.The retained fragment is comprised of 17-4 stainless steel material.Based on astm and iso standards, the material composition would fall into a standardized medical grade alloy and, although not approved for implantation, standardized alloys have not been determined to cause injury or harm when the duration of contact with tissues/blood/bone is short-term, however, the fragment is not intended as an implantable device.The patient impact beyond the procedure cannot be determined as there is no report of the patient¿s current condition.Based on the limited information provided, no further clinical assessment is warranted.
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