The reason for this revision surgery was the ulnar component loosened.The actual length of in-vivo patient service was 8 years.There is no information in this complaint about any patient injuries, activities, or accidents that may have contributed to the need for this revision surgery.There are no reported pre-existing patient health conditions.The healthcare professional indicated there was no delay in surgery and another suitable device was available for use.The revision surgery was completed as intended.The device was disposed of at the hospital and not made available to djo surgical for examination.A review of the device history record (dhr) was not conducted since a lot number was not provided or determined during the complaint evaluation.A search of the device investigation history produced no anomalies or evidence of a product issue.Multiple searches of the djo surgical records and patient database revealed no additional information concerning this event.Zimmer-biomet was contacted for additional information through an invoice search and they provided an original surgery date but no other information that advanced the complaint evaluation.This complaint will be closed with the lot unknown pending receipt of additional information.Should additional information become available concerning this complaint, the complaint will be re-opened and a further review shall be conducted.This event is deemed to be non-product related.The root cause for the ulnar component loosening was not reported.The scope of this investigation is limited without having the parts available to djo surgical for evaluation.Other conditions relating to this event could not be determined with confidence.The surgeon reported no issues associated with the explanted product.Inventory containment is not required as there are no indications of a product or process issue affecting implant safety or effectiveness.
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