MAUDE Adverse Event Report: AESCULAP AG AS COLUMBUS REV F TIB.OFFSET CEMENT.T1; KNEE ENDOPROSTHESES

Model Number	NR071Z
Medical Device Problem Code	Device Appears to Trigger Rejection (1524)
Health Effect - Clinical Code	Failure of Implant (1924)
Date of Event	04/25/2022
Type of Reportable Event	Serious Injury
Additional Manufacturer Narrative
Manufacturing site evaluation: the device was not returned to the manufacturer for physical evaluation.Additionally, no on-site evaluation of the unit was performed and no parts were returned for failure analysis.Therefore, the investigation was not able to confirm a device issue that could be associated with the reported event.Batch history review: the device history records (dhr) were reviewed for the reported lot number; the device was found to be within specification at the time of production.All device history records (dhr) are reviewed and released according to documented procedures and a device is not released if it does not meet requirements or is nonconforming.No similar complaints were identified against the same lot number with a similar reported event.Conclusion: a definitive conclusion regarding the complaint incident cannot be reached without a physical examination of the complaint device.There is no indication of a material defect, manufacturing failure, or design error on the basis of the device history record.For further investigation, examination of the complaint device is required.
Event or Problem Description
It was reported to aesculap inc.That a as columbus rev f tib.Offset cement.T1 (part # nr071z) was implanted during a left knee revision surgery performed on (b)(6) 2018.According to the complainant, post-operative bone deterioration of femur and tibia occurred.The complaint device has not been returned to the manufacturer for evaluation.An additional medical intervention was required.According to the patient , a revision surgery in the future is likely.Additional information was not provided.The malfunction is filed under aic reference (b)(4).Associated medwatch reports: 400554585: nr191z, (2916714-2022-00055), 400554586: nr291z, (2916714-2022-00056), 400554587: nr565z, (2916714-2022-00057), 400554588: nr565z, (2916714-2022-00058), 400554589: nr611m, (2916714-2022-00059), 400554591: nr005z, (2916714-2022-00061), 400554592: nr400z, (2916714-2022-00062).
Additional Manufacturer Narrative
Additional information: b5 - patient harm updated, patient condition, planned revision date.B7 - patient medical history.Investigation results previously submitted.
Event or Problem Description
Update: the patient provided some additional information including the proposed revision date of (b)(6) 2023.She had been in contact with a newer surgeon in 2019, after the accident; the doctor at that time noted that the implant was "fine".Some recent unspecified diagnostic test results supposedly showed that the stem was broken or disconnected.She is now working with cedars-sinai orthopedic center.The adverse event is filed under aag reference (b)(4).Associated medwatch reports: 400554585 - nr191z (2916714-2022-00055).400554587 - nr565z (2916714-2022-00056).400554588 - nr565z (2916714-2022-00057).400554589 - nr611m (2916714-2022-00058).400554590 - nr071z (2916714-2022-00059).400554591 - nr005z (2916714-2022-00061).400554592 - nr400z (2916714-2022-00062).

• Brand Name: AS COLUMBUS REV F TIB.OFFSET CEMENT.T1
• Common Device Name: KNEE ENDOPROSTHESES
• Manufacturer (Section D): AESCULAP AG; po box 40; tuttlingen, 78501 ; GM 78501
• MDR Report Key: 14456074
• Report Number: 2916714-2022-00060
• Device Sequence Number: 15037864
• Product Code: KRO
• UDI-Device Identifier: 04046963175948
• UDI-Public: 4046963175948
• Combination Product (Y/N): N
• Initial Reporter State: CA
• Initial Reporter Country: US
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Device Implanted Year: 2018
• Serviced by Third Party (Y/N): Unknown
• Reporter Type: Importer
• Initial Reporter Occupation: Other Health Care Professional
• Type of Report: Initial,Followup
• Report Date (Section B): 04/18/2024
• Report Date (Section F): 05/19/2022

1 Device was Involved in the Event

1 Patient was Involved in the Event

• Is this an Adverse Event Report?: Yes
• Is this a Product Problem Report?: Yes
• Operator of Device: Health Professional
• Device Expiration Date: 02/28/2022
• Device Model Number: NR071Z
• Device Catalogue Number: NR071Z
• Device Lot Number: 52318047
• Was Device Available for Evaluation?: No
• Is the Reporter a Health Professional?: Yes
• Was the Report Sent to FDA?: Yes
• Distributor Facility Aware Date: 04/25/2022
• Device Age: 5 YR
• Event Location: Hospital
• Date Report to Manufacturer: 04/25/2022
• Initial Date Received by Manufacturer: Not provided
• Supplement Date Received by Manufacturer: Not provided
• Initial Report FDA Received Date: 05/20/2022
• Supplement Report FDA Received Date: 04/18/2024
• Is This a Single-Use Device that was Reprocessed and Reused on a Patient? (Y/N): No
• Patient Sequence Number: 1
• Outcome Attributed to Adverse Event: Required Intervention; Other
• Patient Age: 70 YR
• Patient Sex: Female
• Date Report Sent to FDA: 05/19/2022