MAUDE Adverse Event Report: EXACTECH, INC. UNKNOWN KNEE COMPONENTS; PROSTHESIS, KNEE, PATELLOFEMOROTIBIAL, SEMI-CONSTRAINED, CEMENTED, POLYMER/METAL

Medical Device Problem Codes	Naturally Worn (2988); Loosening of Implant Not Related to Bone-Ingrowth (4002)
Health Effect - Clinical Codes	Pain (1994); Synovitis (2094); Osteolysis (2377); Joint Laxity (4526); Implant Pain (4561); Appropriate Clinical Signs, Symptoms and Conditions Term/Code Not Available (4581)
Date of Event	12/19/2023
Type of Reportable Event	Serious Injury
Event or Problem Description
It was reported that approximately 175 months after a left total knee replacement procedure, the patient underwent a revision procedure to address prosthesis wear, pain, grossly loose femur, tibial insert, tibia, patella, broken poly locking screw, massive bone loss in the femur and tibia, marked bone loss in the patella, advanced wear and oxidation on tibial insert and patella.Revision surgery operative notes were provided.Patient left the operating room in stable condition.Post operative diagnosis noted wear of the implant.No further issues or complications were reported.No additional information is available.
Additional Manufacturer Narrative
D10: concomitants: 208-23-18 - 1163109 -cc tibial insert sz 3, 18mm.200-02-32 - three peg patella 32mm.This follow-up report is being submitted to relay additional and/or corrected information.The following sections were added/corrected: d1, d4 (remove expiration date), d10, g4, h6: clinical code, medical device problem code, component code, type of investigation.The revision reported was likely the result of prosthesis wear of the insert and patella, fracture of the spine stiffening screw, and loosening of the tibial tray and femoral component over the 14.5 years of implantation.The underlying cause and sequence of events cannot be determined because the devices were not returned, and no images or radiographs were provided.If any further information is obtained that would change or alter any information provided, a supplemental report will be filed accordingly.

• Brand Name: UNKNOWN KNEE COMPONENTS
• Common Device Name: PROSTHESIS, KNEE, PATELLOFEMOROTIBIAL, SEMI-CONSTRAINED, CEMENTED, POLYMER/METAL
• Manufacturer (Section D): EXACTECH, INC.; 2320 nw 66 court; gainesville FL 32653
• Manufacturer (Section G): EXACTECH INC.; 2320 nw 66th court; gainesville 32653
• Manufacturer Contact: geoff gannon ; 2320 nw 66th court; gainesville 32653 ; 3523771140
• MDR Report Key: 19574164
• Report Number: 1038671-2024-02034
• Device Sequence Number: 14467432
• Product Code: JWH
• Combination Product (Y/N): N
• Initial Reporter State: FL
• Initial Reporter Country: US
• PMA/510(K) Number: UNK
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Device Implanted Year: 2009
• Device Explanted Year: 2023
• Serviced by Third Party (Y/N): N
• Reporter Type: Manufacturer
• Report Source: Company Representative
• Initial Reporter Occupation: Non-Healthcare Professional
• Type of Report: Initial,Followup
• Report Date (Section B): 02/11/2026

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
• Was Device Available for Evaluation?: No
• Type of Report(Section G): Thirty-Day
• Initial Date Received by Manufacturer: 06/12/2024
• Supplement Date Received by Manufacturer: 02/10/2026
• Initial Report FDA Received Date: 06/20/2024
• Supplement Report FDA Received Date: 02/11/2026
• 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: SEE H11.
• Outcome Attributed to Adverse Event: Required Intervention; Hospitalization
• Patient Sex: Female