MAUDE Adverse Event Report: SMITH & NEPHEW, INC. GNS II RESURF PAT 32MM; PROSTHESIS, KNEE, PATELLOFEMOROTIBIAL, SEMI-CONSTRAINED, CEMENTED, POLYMER/METAL

Model Number	71420576
Medical Device Problem Code	Adverse Event Without Identified Device or Use Problem (2993)
Health Effect - Clinical Codes	Unspecified Infection (1930); Implant Pain (4561)
Date of Event	03/11/2022
Type of Reportable Event	Serious Injury
Additional Manufacturer Narrative
Internal complaint reference: (b)(4).
Event or Problem Description
It was reported that, after a tka revision surgery had been performed on (b)(6) 2015, the patient experienced pain.The physician mentioned that the lgn rev tibia base sz 5 lt was showing red on the bone scan report and that the tkr replacement was most likely infected; therefore, an antibiotic spacer was needed.This adverse event was solved by a third revision surgery on (b)(6) 2022, in which the gns ii resurf pat 32mm was explanted, and gii implants were implanted with antibiotics.The current health status of the 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, a 3rd left tka revision was performed nearly 7 years post 2nd revision due the onset of pain ¿a few months ago¿ and the ¿tibial component was "showing red" on the bone scan¿¿ as the knee was ¿most likely infected¿.Reportedly, an antibiotic spacer was needed.It was communicated on the anz customer complaint form that medical records and x-rays were not available, and the patient was ¿fit and healthy¿.Reportedly, the root cause of the revision was ¿most likely¿ infection supported by the bone scan ¿showing red¿ in the presence of pain; however, without the requested documentation the root cause could not be further assessed.The patient impact beyond that which was reported could not be determined.No further medical assessment can be rendered at this time.A review of complaint history revealed similar events for the listed device over the previous 12 months, but no similar events for the batch based on the historical data, this failure mode will be monitored for future complaints for any necessary corrective actions.A review of the risk management file revealed this failure mode was previously identified.The anticipated risk level is still adequate.A review of the instructions for use for this device revealed that infection has been identified in section as a possible adverse effect.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.Possible causes could include but are not limited to contamination, patient reaction, and post-operative healing issue.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: GNS II RESURF PAT 32MM
• 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: 13996176
• Report Number: 1020279-2022-01479
• Device Sequence Number: 4393974
• Product Code: JWH
• UDI-Device Identifier: 03596010208309
• UDI-Public: 03596010208309
• Combination Product (Y/N): N
• Initial Reporter Country: AS
• PMA/510(K) Number: K951987
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Device Implanted Year: 2005
• Device Explanted Year: 2022
• Reporter Type: Manufacturer
• Report Source: Other,Foreign,Health Professional,User Facility,Company Representative
• Initial Reporter Occupation: Physician
• Type of Report: Initial,Followup
• Report Date (Section B): 05/02/2022

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 Model Number: 71420576
• Device Catalogue Number: 71420576
• Device Lot Number: 05FM07296
• 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: 03/11/2022
• Supplement Date Received by Manufacturer: 04/28/2022
• Initial Report FDA Received Date: 04/04/2022
• Supplement Report FDA Received Date: 05/04/2022
• Was Device Evaluated by Manufacturer? (Y/N): Device Not Returned to Manufacturer
• 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: 71424066/LGN PRSFT STEM 13MMX220MM STRT; 71424224/OFFSET COUPLER +4 ANTERIOR LATERAL
• Outcome Attributed to Adverse Event: Required Intervention; Hospitalization
• Patient Sex: Unknown