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It was reported that during the refixation of the posterior cruciate ligament, the needle broke while firing with the knee scorpion.The broken piece was retrieved from the patient.Per complaint reporter there was no harm for patient, operator or third party.The surgery was finished successfully with a new device with the same part number.It was not necessary to switch the surgical technique or do a second surgery.
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Complaint allegation is confirmed by the attached picture, which shows a piece of the distal end of the knee scorpion needle shaft broken off.Based on the information provided which may include the device (if available and returned), pictures, videos, event description, and any additional information from the field, arthrex was able to conclude a most likely cause.Per dfu, dfu-0392-sub: warns against the usages listed to help avoid needle breakage and potential patient injury: do not resterilize or reuse the scorpion suture passer needle.Avoid striking bone or using excessive force to pass the needle through fibrous/calcific tissue.If excessive force is encountered, replace the needle, reposition the device, and pass in a different area.Ensure a secure grasp of tissue to prevent the needle from buckling under the tissue.Avoid "dry" repetitive actuations outside the surgical site.Abrasion of the needle surface can occur, which may inhibit proper function.The most likely cause for the reported failure can be attributed to user error of the device due to excessive force being used during firing of the needle thus, breaking the needle and causing a blockage within the shaft.
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