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It was reported that, during an arthroscopy reconstruction surgery, the biosure screw was broken.The procedure was successfully completed without a significant delay using a back-up device.No further complications were reported.Per preliminary results of investigation it was confirmed the distal end of the screw was fractured, and there was debris on the device.
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H10: h3, h6: the reported device was received for evaluation.There was a relationship found between the device and the reported event.A complaint history review found similar reported events.A review of device records showed there were no indications to suggest that the product did not meet manufacturing specification upon release for distribution.The instructions for use was reviewed and found to include conditions of off label use and technique specifics, as well as precautions and warnings related to the use of the device.A risk management review found that the reported failure was documented appropriately, and there were no indications to suggest the anticipated risk is not adequate.A review of the polymer found that the storage requirements for the material are specified, and the material must comply with provided percentage composition specifications as measured by ash test.A review of the customer provided image found labelling confirming the product identification information.The screw is in a plastic bag, but the bag obscures the view of the device.No damage can be seen in the image.A visual inspection of the returned device found that it is not in its original packaging.The distal end of the screw is fractured, and there is debris on the device.Based on the condition of the product material found during visual inspection, additional material testing is not required.This case reports a biosure screw breakage, and it is unknown if all broken fragments were retrieved from the patient.No clinically relevant supporting documentation was provided for review.If a portion of the biosure screw remains retained in the patient, it is made of a biocomposite material which is intended for implantation to allow for bone ingrowth.If retained micro-motion or movement cannot be predicted.There is potential risk for tissue inflammation and/or pain.No further clinical/medical assessment is warranted at this time.Should additional clinical documentation become available in the future, the clinical/medical task may be re-evaluated.The complaint was confirmed, and the root cause was associated with unintended use of the device.Factors that could have contributed to the reported event include excessive force on the device, excessive torque on the device, attempted correction of a damaged device, off-axis insertion, improper preparation of the insertion site, or an inadvertent impact event inconsistent with normal use.Please refer to the instructions for use for recommendations on proper use of the device and potential troubleshooting methods to prevent future reoccurrence of the reported event.No containment or corrective actions are recommended at this time.
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