This mdr report is based on the reclassification of a previously reviewed complaint.During a treatment of a pathologic fracture of a tibia, a 6.0mm flexible reamer broke at the distal end, when drilling from proximal to distal in preparation of delivering an illuminoss implant.All pieces of the reamer were removed with ball tipped guidewire.
|
This mdr report is based on the reclassification of a previously reviewed complaint.Followup information provided by the user: the 6mm flexible reamer broke at the distal end of the tibia when drilling from proximal to distal in preparation of delivering our illuminoss catheter.The entry point to the canal reaming pathway was at an angle of trajectory that required bend, as the user navigated the procedure to drill from proximal to distal end of the tibia.The user was able to remove all pieces of the reamer by pulling proximally on the 2mm ball tipped guidewire.The incident did not add significant delay to the procedure, and no harm to patient.Records review: a review of manufacturing records was performed, and found that the device met spefication at the time of manufacture and release.Returned product evaluation: the device was received on april 1, 2021.Device decontamination and photo-imaging was performed.The product evaluation performed identified that the break patterns observed are consistent with overtorquing of the device during use.Furthermore, that the observed break pattern is consistent with a grerat deal of torquing force applied rapidly, rather than gradually over time.Engineering evaluation further noted that use of the device under high torque in a position of significant bend could result in the multiple break points observed.Follow-up with the complainant confirmed that the entry point to canal reaming pathway was at an angle of trajectory that required significant bend, as the user navigated the procedure to drill from proximal to distal end of the tibia.No x-rays were provided to the firm to aid in the investigation.Conclusion: existing evidence supports that over-torquing of the device is the probable cause of this event, although this cannot be definitely proven with the evidence available to the firm at this time.
|