MAUDE Adverse Event Report: SMITH & NEPHEW, INC. LGN POROUS CR FEM SZ 7R; PRSTHSS, KNEE,PAT/FMROTIBIAL,SEMI-CNSTRND,UNCMNTD,POROUS,COATED,POLY/METAL/POLY

Model Number	71423257
Medical Device Problem Code	Adverse Event Without Identified Device or Use Problem (2993)
Health Effect - Clinical Code	Unspecified Infection (1930)
Date of Event	02/11/2022
Type of Reportable Event	Serious Injury
Event or Problem Description
It was reported that after a tka performed on (b)(6) 2022, the patient experience an infection after 6 weeks.The adverse event was addressed via revision surgery on (b)(6) 2022 to explant the femur, tibia, insert and patellar components.Patient's current status of health is unknown.
Additional Manufacturer Narrative
Internal complaint reference: (b)(4).
Additional Manufacturer Narrative
Internal complaint reference: (b)(4).
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 a revision surgery due to infection approximately six weeks after tka.No further clinically relevant information was provided for evaluation.Without clinically relevant information for evaluation, the root cause of the reported infection cannot be determined.The patient impact beyond the reported revision could not be assessed.No further medical assessment could be rendered at this time.If additional clinically relevant materials are later received, then the case may be re-opened for further evaluation.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 acute post-surgical wound infection and late deep wound sepsis has been identified as a 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 review of the sterilization records revealed the batch was sterilized within normal parameters.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: LGN POROUS CR FEM SZ 7R
• Common Device Name: PRSTHSS, KNEE,PAT/FMROTIBIAL,SEMI-CNSTRND,UNCMNTD,POROUS,COATED,POLY/METAL/POLY
• 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
• MDR Report Key: 14147789
• Report Number: 1020279-2022-01864
• Device Sequence Number: 12245454
• Product Code: MBH
• UDI-Device Identifier: 00885556030769
• UDI-Public: 00885556030769
• Combination Product (Y/N): N
• Initial Reporter State: CT
• Initial Reporter Country: US
• PMA/510(K) Number: K073325
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Device Implanted Year: 2022
• Device Explanted Year: 2022
• Reporter Type: Manufacturer
• Report Source: Company Representative
• Initial Reporter Occupation: Other
• Type of Report: Initial,Followup,Followup
• Report Date (Section B): 05/20/2022

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
• Device Model Number: 71423257
• Device Catalogue Number: 71423257
• Device Lot Number: 20FHA0001
• 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: 03/28/2022
• Supplement Date Received by Manufacturer: 03/28/2022; 05/19/2022
• Initial Report FDA Received Date: 04/19/2022
• Supplement Report FDA Received Date: 04/20/2022; 05/21/2022
• Was Device Evaluated by Manufacturer? (Y/N): Device Not Returned to Manufacturer
• Date Device Manufactured: 09/30/2021
• Is the Device Labeled for Single Use? (Y/N): Yes
• Usage of Device: Initial
• Patient Sequence Number: 1
• Outcome Attributed to Adverse Event: Required Intervention
• Patient Age: 63 YR
• Patient Sex: Male