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It was reported that during a shoulder arthroscopy with rc repair, two (2) twinfix ultra anchors broke during insertion.The insertion site was prepared with the awl 3.8 mm, the patient had normal bone quality.One of the broken anchors could not be retrieved entirely.The procedure was completed with a s+n back up device.There was a delay less than 30 minutes and no further complications were reported.
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H3, h6: a device deficiency was not identified, and the root cause of the reported event could not be determined since the device was not returned for evaluation.A review of device records showed there were no indications to suggest that the product did not meet manufacturing specifications upon release for distribution.A complaint history review found similar reported events.A risk management review found that the reported failure and/or harm was documented appropriately, and there were no indications to suggest the anticipated risk is not adequate.The instructions for use were 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 review of the material specifications 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 clinical review states that based on the limited information provided the clinical root cause of the reported events could not be determined and we are currently unable to rule out a procedural variance as a contributing factor to the reported event, which does not represent a device malfunction.The device instructions for use does caution that ¿use of excessive force during insertion can cause failure of the suture anchor or insertion device.¿ the twinfix ultra anchor is implantable, biocompatibility is not an issue.The patient impact is determined to be the retained broken anchor and the prolonged surgery.Local irritation/discomfort, and/or migration of the retained broken anchor should not be ruled out.Please refer to the instructions for use for precautions and warnings related to the use of the device.Based on this investigation, the need for corrective action is not indicated.If the product associated with this event is returned at a future date, this investigation will be reopened for evaluation.
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