MAUDE Adverse Event Report: SMITH & NEPHEW, INC. LGN POS FEM WDG 5MM SZ7-8 LNG; PROSTHESIS, KNEE, PATELLOFEMOROTIBIAL, SEMI-CONSTRAINED, CEMENTED, POLYMER/

Model Number	71421807
Medical Device Problem Code	Connection Problem (2900)
Health Effect - Clinical Code	No Clinical Signs, Symptoms or Conditions (4582)
Date of Event	02/04/2021
Type of Reportable Event	Malfunction
Additional Manufacturer Narrative
Internal complaint reference number: (b)(4).
Event or Problem Description
It was reported that during use, outside the patient, the screw of the posterior wedge could not fully engage with the legion oxinium femur screw hole.Because of this the posterior wedge could not be properly tightened and would stay a bit loose.The procedure finished with a smith and nephew backup device.Surgical delay less than 30 minutes.Patient injuries were not reported.All available information has been disclosed.If additional information should become available, a supplemental report will be submitted accordingly.
Additional Manufacturer Narrative
Results of investigation: the device, intended for use in treatment, was not returned for evaluation.Therefore, product analysis could not be performed at this time.So the reported event could not be confirmed.A complaint history review found related failures; this failure mode will be monitored for future complaints for any necessary corrective actions.A review of the manufacturing records did not reveal any manufacturing or material abnormalities that could have caused or contributed to the reported incident this device is a reusable instrument that can be exposed to numerous surgeries; damage from repeated use can occur.Damage from prolonged use, misuse or rough handling are likely probable causes of the reported event.We recommend that all reusable instruments be routinely inspected for wear and damage and replaced as necessary.At this time, we have no reason to suspect that the product failed to meet any product specifications at the time of manufacture.Based on this investigation, the need for corrective action is not indicated.Without the actual product involved and/or device information, our investigation cannot proceed.If the device or new information is received in the future, this complaint can be re-opened.No further investigation warranted for these complaints; however, we will continue to monitor for future complaints and investigate as necessary.We consider this investigation closed.

• Brand Name: LGN POS FEM WDG 5MM SZ7-8 LNG
• Common Device Name: PROSTHESIS, KNEE, PATELLOFEMOROTIBIAL, SEMI-CONSTRAINED, CEMENTED, POLYMER/
• Manufacturer (Section D): SMITH & NEPHEW, INC.; 1450 brooks rd.; memphis TN 38116
• MDR Report Key: 11391136
• Report Number: 1020279-2021-01688
• Device Sequence Number: 1283679
• Product Code: JWH
• UDI-Device Identifier: 03596010545411
• UDI-Public: 03596010545411
• Combination Product (Y/N): N
• Initial Reporter Country: NL
• PMA/510(K) Number: K041106
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Serviced by Third Party (Y/N): N
• Reporter Type: Manufacturer
• Report Source: company representative,foreig
• Initial Reporter Occupation: Physician
• Type of Report: Initial,Followup
• Report Date (Section B): 04/27/2021

1 Device was Involved in the Event

1 Patient was Involved in the Event

• Is this an Adverse Event Report?: No
• Is this a Product Problem Report?: Yes
• Operator of Device: Health Professional
• Device Model Number: 71421807
• Device Catalogue Number: 71421807
• Device Lot Number: 20FSM0120
• Was Device Available for Evaluation?: No
• Initial Date Received by Manufacturer: 02/04/2021
• Supplement Date Received by Manufacturer: 03/30/2021
• Initial Report FDA Received Date: 03/01/2021
• Supplement Report FDA Received Date: 04/27/2021
• Is This a Single-Use Device that was Reprocessed and Reused on a Patient? (Y/N): No
• Patient Sequence Number: 1
• Concomitant Medical Products and Therapy/Usage Dates: 71421168, LGN OX FEM 8 LT, LOT: 19FM14354