MAUDE Adverse Event Report: SMITH & NEPHEW, INC. JOURN ART INS BCS STD 7-8 RT11; PROSTHESIS, KNEE, PATELLOFEMOROTIBIAL, SEMI-CONSTRAINED, CEMENTED, POLYMER/METAL

Catalog Number	74023273
Medical Device Problem Code	Fracture (1260)
Health Effect - Clinical Codes	Failure of Implant (1924); Joint Dislocation (2374); Joint Laxity (4526)
Date of Event	01/14/2025
Type of Reportable Event	Serious Injury
Event or Problem Description
It was reported that, after tka surgery had been performed on 2011, the patient experienced several episodes of gross knee instability in which the surgeon described as a knee dislocation.This adverse event was treated by revision surgery on (b)(6) 2025, in which the journ art ins bcs std 7-8 rt11 was exchanged due to breakage of the post.Patient's current health status is unknown.
Additional Manufacturer Narrative
Internal complaint reference: (b)(4).This complaint was opened by smith+nephew to document a patient complication related to a product problem with a smith+nephew device.The reported issue(s) relate to known inherent device and/or procedural risks that are appropriately documented in our risk files.Smith+nephew will continue to monitor trends in accordance with our post-market surveillance process and take necessary action as required if anticipated severity and/or occurrence rates are exceeded.Smith+nephew has no reason to suspect that the product failed to meet any specifications at the time of manufacture.Based on our review of all currently available information, we are unable to identify a definitive root cause.However, as the use of our product cannot be excluded as a potential cause or contributory factor to the reported issue, we are submitting this report in accordance with applicable regulations.If additional investigative findings or information becomes available that alters the conclusions of this report, a follow-up report will be submitted as required.
Additional Manufacturer Narrative
H3, h6: the reported event was analyzed.Although the involvement of all the devices was reported, the relationship with the investigated failure was directly associated to the journ art ins bcs std 7-8 rt11.Therefore, no investigation is deemed for the other devices.The devices were not returned for evaluation; therefore, a device analysis could not be performed.The clinical/medical investigation concluded that, the root cause of the reported event seems to be due to multiple factors.The "several episodes of gross knee instability" likely happened partly because of ligament issues and too much bending, causing repeated contact with the tibial post over the 14 years it was in place.Additionally, we can't rule out the possibility that the cam jumped the post, which might explain the suspected dislocation, although this can't be confirmed from the imaging and complaint form.It's important to note that the patellar resurfacing done during the revision surgery doesn't indicate any problem with the components themselves.A review of the production order did not reveal a manufacturing abnormality that could have caused or contributed to the reported incident.A review of complaint history based on the historical data revealed a similar event for the listed batch, this failure mode will be monitored for future complaints for any necessary corrective actions.A review of the instructions for use documents for knee systems revealed in warnings and precautions that the implant can break or become damaged as a result of strenuous activity or trauma.The patient should be warned that the device does not replace normal healthy bone.A review of the risk management file revealed this failure mode was previously identified.A review of previous actions concluded that there is a higher-than-expected risk of revision surgery for the first generation of journey bcs systems.It was recommended to undertake a field safety corrective action to inform surgeons of the higher expected risk of revision and ensure clear communication that the device should only be used for polyethylene exchange revision of journey bcs total knee constructs where the femoral component and tibial baseplate are well fixed.According with material specification, the quality and manufacture of polyethylene bar stock shall be controlled.At this time, we have no evidence to conclude that the product failed to meet any specifications at the time of manufacture.Factors that could contribute to the reported event include size selected, surgical technique, postoperative care, patient anatomy, abnormal loading of limb, excessive forces and/or injury.Based on this investigation, the need for corrective action is not indicated.Should the devices 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: JOURN ART INS BCS STD 7-8 RT11
• Common Device Name: PROSTHESIS, KNEE, PATELLOFEMOROTIBIAL, SEMI-CONSTRAINED, CEMENTED, POLYMER/METAL
• 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: 21304010
• Report Number: 1020279-2025-00219
• Device Sequence Number: 18184888
• Product Code: JWH
• UDI-Device Identifier: 03596010555298
• UDI-Public: 3596010555298
• Combination Product (Y/N): N
• Initial Reporter Country: AS
• PMA/510(K) Number: K042515
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Device Explanted Year: 2025
• Serviced by Third Party (Y/N): N
• Reporter Type: Manufacturer
• Report Source: Other,Foreign,Health Professional,Company Representative
• Initial Reporter Occupation: Other
• Remedial Action: Other,Recall
• Type of Report: Initial,Followup
• Report Date (Section B): 03/07/2025

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: 07/28/2016
• Device Catalogue Number: 74023273
• Device Lot Number: 06GM10755
• 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: 01/14/2025
• Supplement Date Received by Manufacturer: 03/06/2025
• Initial Report FDA Received Date: 02/04/2025
• Supplement Report FDA Received Date: 03/07/2025
• Was Device Evaluated by Manufacturer? (Y/N): Device Not Returned to Manufacturer
• Date Device Manufactured: 07/31/2006
• Is the Device Labeled for Single Use? (Y/N): Yes
• Is This a Single-Use Device that was Reprocessed and Reused on a Patient? (Y/N): No
• Usage of Device: Initial
• Patient Sequence Number: 1
• Concomitant Medical Products and Therapy/Usage Dates: PN: 74021117 / LOT: 09CM06167.; PN: 74022217 / LOT: 09CM13735A.
• Outcome Attributed to Adverse Event: Other; Required Intervention
• Patient Sex: Unknown