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It was reported that, after total knee arthroplasty was performed on (b)(6) 2011, the patient experienced pain.A hot spot on the tibia under the tibial component was determined by conducting a bone scan.This adverse event was treated with a revision surgery on (b)(6) 2022.Patient's current health status is unknown.
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H3, h6: the device was not returned for evaluation and the reported event could not be confirmed.The clinical/medical investigation concluded that it was communicated that the requested documentation was not available, and the patient's current health status is unknown.Without the requested information, the clinical root cause of the reported pain and ¿hot spot¿ on bone scan cannot be further assessed.The patient impact beyond the reported clinical findings/symptoms, revision procedure and an anticipated transient post-revision rehabilitation phase cannot be determined.No further medical assessment can be rendered at this time.A review of the manufacturing records did not reveal a manufacturing abnormality that could have caused or contributed to the reported incident.A review of complaint history for the part number over the past 12 months and for the batch number based on historical data of the device did not reveal similar events for the listed device.A review of the instructions for use documents for knee systems revealed in the postoperative section that periodic, long-term follow-up is recommended to monitor the position and state of the prosthetic components, as well as the condition of the adjoining bone.A review of the risk management file revealed this failure mode was previously identified.The anticipated risk level is still adequate.A historical review concluded that there are no prior actions related to this product and event.At this time, we have no reason to suspect that the product failed to meet any product specifications at the time of manufacture.Possible causes could include but not limited to traumatic injury, joint tightness, material in use, patient reaction or loss of sterility.The contribution of the device to the reported event could not be corroborated.Based on this investigation, the need for corrective action is not indicated.Without the return of the actual product involved, our investigation could not proceed.Should the device or additional information be received, the complaint will be reopened.No further investigation is warranted for this complaint; however, we will continue to monitor for future complaints and investigate as necessary.We consider this investigation closed.
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