MAUDE Adverse Event Report: SMITH & NEPHEW, INC. GEN II 7.5MM RESUR PAT 35MM; PROSTHESIS, KNEE, PATELLOFEMOROTIBIAL, SEMI-CONSTRAINED, CEMENTED, POLYMER/METAL

Catalog Number	71932637
Medical Device Problem Code	Fracture (1260)
Health Effect - Clinical Codes	Failure of Implant (1924); Arthralgia (2355)
Date of Event	04/11/2023
Type of Reportable Event	Serious Injury
Additional Manufacturer Narrative
Complaint reference number: (b)(4).
Event or Problem Description
It was reported that, after a tka surgery was performed on (b)(6) 2021, the patient experienced pain, feeling of wrongness, patella collapse (on (b)(6) 2022) and patellar fracture (on (b)(6) 2022).This adverse event was treated by a revision surgery on (b)(6) 2023, in which a gen ii 7.5mm resur pat 35mm was explanted and a jrny ii cr isrt xlpe rt sz 7-8 9mm was exchanged.Furthermore, the insert was exchanged to reduce pressure on the patella.Patient's current health status is unknown.
Additional Manufacturer Narrative
Section h3, h6: the device was not returned for evaluation; therefore, a device analysis could not be performed.The clinical/medical investigation concluded that, as of the date of this medical investigation, the requested clinical documentation has not been provided; therefore, there were no clinical factors found which would have definitively contributed to the event.However, per a case communication, ¿patient's activity level was high.So, the surgeon decided it is not the product failure.¿ the patient impact beyond the reported symptoms and revision cannot be determined and the patient¿s current health status is unknown.Therefore, no further clinical/medical assessment is warranted.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 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 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.The anticipated risk level is still adequate.A historical review concluded that there are no prior actions related to this product and event.According with the material specification, the quality and manufacture of ultra-high-molecular-weight polyethylene shall be controlled.This material is used in the manufacture of surgical implants and instruments, and can be considered a surgical grade of ultra-high-molecular-weight polyethylene.At this time, we have no reason to suspect that the product failed to meet any specifications at the time of manufacture.Factors that could contribute to the reported event include patient anatomy, abnormal loading of limb, excessive forces and/or traumatic injury.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: GEN II 7.5MM RESUR PAT 35MM
• 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: 16947562
• Report Number: 1020279-2023-01061
• Device Sequence Number: 20438802
• Product Code: JWH
• UDI-Device Identifier: 00885556057117
• UDI-Public: 885556057117
• Combination Product (Y/N): N
• Initial Reporter Country: JA
• PMA/510(K) Number: K951987
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Device Implanted Year: 2021
• Device Explanted Year: 2023
• Serviced by Third Party (Y/N): N
• Reporter Type: Manufacturer
• Report Source: Other,Foreign,Health Professional,Company Representative
• Initial Reporter Occupation: Physician
• Type of Report: Initial,Followup
• Report Date (Section B): 06/07/2023

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 Catalogue Number: 71932637
• Device Lot Number: 20JM06873
• Was Device Available for Evaluation?: No
• Is the Reporter a Health Professional?: Yes
• Type of Report(Section G): Thirty-Day
• Initial Date Received by Manufacturer: 04/24/2023
• Supplement Date Received by Manufacturer: 06/06/2023
• Initial Report FDA Received Date: 05/17/2023
• Supplement Report FDA Received Date: 06/07/2023
• Was Device Evaluated by Manufacturer? (Y/N): Device Not Returned to Manufacturer
• Date Device Manufactured: 09/10/2020
• 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
• Outcome Attributed to Adverse Event: Required Intervention
• Patient Sex: Male
• Patient Weight: 88 KG