MAUDE Adverse Event Report: SMITH & NEPHEW, INC. JUNI OX FB FEM SZ 5 LM RL; PROSTHESIS, KNEE, FEMOROTIBIAL, NON-CONSTRAINED, CEMENTED, METAL/POLYMER

Model Number	71422345
Medical Device Problem Code	Adverse Event Without Identified Device or Use Problem (2993)
Health Effect - Clinical Code	Failure of Implant (1924)
Date of Event	11/12/2021
Type of Reportable Event	Serious Injury
Additional Manufacturer Narrative
Internal complaint reference case (b)(4).
Event or Problem Description
It was reported that, after tka surgery had been performed on (b)(6) 2014, the tibial baseplate became lose, the cement was still attached to the tibial implant but cement failed (loosened from tibial bone), it was not a s&n cement.This adverse event was solved by tka revision surgery on (b)(6) 2021, in which the original uni implants were removed.Current health status of patient is unknown.
Additional Manufacturer Narrative
H3, h6: the device was not returned for evaluation and the reported event could not be confirmed.The clinical/medical investigation concluded that, this case reports, approximately 7.5 years after a unilateral knee arthroplasty surgery was performed, the tibial baseplate loosened due to failure of a (competitor cement) non-smith and nephew cement, which was still attached to the tibial implant.Per email correspondence, the patient¿s current health status is ¿normal,¿ and the devices will not be returned for evaluation.No additional requested information was provided.Based on the information provided the clinical root cause of the reported tibial baseplate cement loosening and failure, cannot definitively concluded.Reportedly, ¿the cement was still attached to the tibial implant, but cement failed (loosened from tibial bone), it was not a s&n cement.¿ per email correspondence, the patient¿s current health status is ¿normal.¿ the patient impact beyond the reported device loosening and revision cannot be determined.No further clinical 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 did not reveal similar events for the listed device.A review of the risk management file and instructions for use documents 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.Factors and/or some potential probable causes that could contribute to the reported event have been identified as abnormal motion over time, cement failure, bone degeneration, fit/sizing issue, lack of ingrowth, lifetime of device, and/or traumatic injury.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.

• Brand Name: JUNI OX FB FEM SZ 5 LM RL
• Common Device Name: PROSTHESIS, KNEE, FEMOROTIBIAL, NON-CONSTRAINED, CEMENTED, METAL/POLYMER
• Manufacturer (Section D): SMITH & NEPHEW, INC.; 1450 brooks rd.; memphis TN 38116
• Manufacturer (Section G): SMITH & NEPHEW, INC.; 1450 brooks rd.; memphis TN 38116
• Manufacturer Contact: holly topping ; 7000 west william cannon drive; austin, TX 78735 ; 5123913905
• MDR Report Key: 12908637
• Report Number: 1020279-2021-08451
• Device Sequence Number: 14722964
• Product Code: HSX
• UDI-Device Identifier: 03596010627346
• UDI-Public: 03596010627346
• Combination Product (Y/N): N
• Initial Reporter State: MO
• Initial Reporter Country: US
• PMA/510(K) Number: K073175
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Device Implanted Year: 2014
• Device Explanted Year: 2021
• Reporter Type: Manufacturer
• Report Source: Company Representative
• Initial Reporter Occupation: Other
• Type of Report: Initial,Followup
• Report Date (Section B): 02/18/2022

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?: No
• Operator of Device: Health Professional
• Device Expiration Date: 02/08/2024
• Device Model Number: 71422345
• Device Catalogue Number: 71422345
• Device Lot Number: 14BM06730
• Was Device Available for Evaluation?: No
• Is the Reporter a Health Professional?: No
• Type of Report(Section G): Thirty-Day
• Initial Date Received by Manufacturer: 11/12/2021
• Supplement Date Received by Manufacturer: 02/16/2022
• Initial Report FDA Received Date: 12/01/2021
• Supplement Report FDA Received Date: 02/18/2022
• Was Device Evaluated by Manufacturer? (Y/N): No
• Date Device Manufactured: 02/10/2014
• Is the Device Labeled for Single Use? (Y/N): No
• Is This a Single-Use Device that was Reprocessed and Reused on a Patient? (Y/N): No
• Usage of Device: A
• Patient Sequence Number: 1
• Patient Age: 65 YR
• Patient Sex: Male
• Patient Weight: 209 KG