MAUDE Adverse Event Report: SMITH & NEPHEW, INC. JRNY UNI TIBIAL BASE LM/RL SZ 5; PROSTHESIS, KNEE, FEMOROTIBIAL, NON-CONSTRAINED, CEMENTED, METAL/POLYMER

Model Number 71422425

Device Problems Material Deformation (2976); Adverse Event Without Identified Device or Use Problem (2993); Loosening of Implant Not Related to Bone-Ingrowth (4002)

Patient Problems Pain (1994); Joint Dislocation (2374); Implant Pain (4561)

Event Date 03/08/2022

Event Type  Injury  

Event Description

It was reported that, after a tka had been performed on (b)(6) 2021, with a uni journey system, the patient experienced pain.X-rays indicated that the journey uni tibinrt s5-6lm/rl8mm was not in its position.This adverse event was solved by a revision surgery on (b)(6) 2022, in which the jrny uni tibial base lm/rl sz 5 was removed.The patient's health status is stable.

Manufacturer Narrative

Internal complaint reference: (b)(4).

Manufacturer Narrative

H3, h6: the device was not returned for evaluation but the pictures were reviewed, and the failure mode was confirmed.The clinical/medical investigation concluded that based on the documentation provided, the root cause of the reported revision due to ¿damage¿ and pain was most likely the uni-knee insert dislocation allowing contact between the femoral condyle and the tibial baseplate; however, the root cause of the insert dislocation could not be definitively concluded.The amount of periprosthetic tissue debris during the approximate 4 months in-vivo raises suspicion of possible post-operative trauma or incomplete seating/locking of the tibial insert into the tibial baseplate during the initial uni-knee procedure.The assessed patient impact is the reported pain, insert dislocation, revision/conversion to tka and findings indicative of metallic tissue debris.Further patient impact could not be determined; however, it was reported that the patient health condition is stable.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 that improper fixation, and/or migration of the components could cause possible adverse effects.Also, the warnings and precautions section establish that the implant can become damaged as a result of strenuous activity or trauma.The patient should be warned of surgical risks, and made aware of possible adverse effects.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.Potential causes could include but are not limited to friction, joint tightness or lifetime of device.The contribution of the device to the reported incident could be corroborated as the device was damaged and it was required a revision surgery to treat this event.Based on this investigation, the need for corrective action is not indicated.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: JRNY UNI TIBIAL BASE LM/RL SZ 5
• Type of Device: 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: 13996089
• MDR Text Key: 288498322
• Report Number: 1020279-2022-01483
• Device Sequence Number: 1
• Product Code: HSX
• UDI-Device Identifier: 00885556088043
• UDI-Public: 00885556088043
• Combination Product (y/n): N
• Reporter Country Code: CI
• PMA/PMN Number: K102069
• Number of Events Reported: 1
• Summary Report (Y/N): N
• Report Source: Manufacturer
• Source Type: Other,Foreign,Health Professional,User Facility,Company Representative
• Reporter Occupation: Physician
• Type of Report: Initial,Followup
• Report Date: 05/03/2022

1 Device was Involved in the Event

1 Patient was Involved in the Event

• Date FDA Received: 04/04/2022
• Is this an Adverse Event Report?: Yes
• Is this a Product Problem Report?: Yes
• Device Operator: Health Professional
• Device Model Number: 71422425
• Device Catalogue Number: 71422425
• Device Lot Number: 21GM10737
• Was Device Available for Evaluation?: No
• Is the Reporter a Health Professional?: Yes
• Date Manufacturer Received: 04/29/2022
• Was Device Evaluated by Manufacturer?: Device Not Returned to Manufacturer
• Date Device Manufactured: 07/19/2021
• Is the Device Single Use?: Yes
• Is This a Reprocessed and Reused Single-Use Device?: No
• Type of Device Usage: Initial
• Patient Sequence Number: 1
• Patient Outcome(s): Hospitalization; Required Intervention