MAUDE Adverse Event Report: ZIMMER BIOMET, INC. NATURAL TIBIA TRABECULAR METAL TWO-PEG POROUS; PROSTHESIS, KNEE

Model Number	N/A
Medical Device Problem Codes	Fracture (1260); Osseointegration Problem (3003)
Health Effect - Clinical Codes	Failure of Implant (1924); Unspecified Infection (1930); Pain (1994); Inadequate Osseointegration (2646)
Date of Event	04/13/2023
Type of Reportable Event	Serious Injury
Additional Manufacturer Narrative
(b)(4).G2: foreign - australia.The device will not be returned for analysis; however, an investigation of the reported event is in progress.Once the investigation is completed, a supplemental medwatch will be submitted.Multiple mdr reports were filed for this event, please see associated reports: 0002648920-2023-00084, 3007963827-2023-00107 and 0001822565-2023-01196.
Event or Problem Description
It was reported a patient underwent a left knee arthroplasty.At 3 months post op, the patient was pain free with 120 degrees flexion.Approximately 4 months post implantation, the patient presented with knee pain.The original reason for revision was for suspected infection, however, the surgeon mentioned the knee did not look infected when removing the prosthesis.The surgeon took 6 swabs, 3 on distal femur and 3 on proximal tibia.When removing the tibia, it was noted that the medial tm peg had snapped prior to attempts to remove.The bone ingrowth on the underside of tm tibia was small.The peg that was left in patient had bone ingrowth.It was noted that the medial tm peg is not perpendicular to the baseplate in x-rays.Additionally, metal debris seen in x-rays.Attempts have been made and no further information has been provided.
Additional Manufacturer Narrative
This follow-up report is being submitted to relay additional information.Visual examination of the provided pictures identified sign of being in-vivo.One of the pegs from the tibial plate was fractured and it was removed from the patient.The removed peg shows sign of bone in growth.The device history record was reviewed and no discrepancies relevant to the reported event were found.Medical records/radiographs were provided and reviewed by a health care professional.Review of the available records identified the following: anatomic alignment of the left knee arthroplasty.Radiolucency along the tibial implant as noted.No sign of peg fracture were noted.A definitive root cause cannot be determined.If any further information is found which would change or alter any conclusions or information, a supplemental report will be filed accordingly.Zimmer biomet will continue to monitor for trends.
Event or Problem Description
No further event information available at the time of this report.

• Brand Name: NATURAL TIBIA TRABECULAR METAL TWO-PEG POROUS
• Common Device Name: PROSTHESIS, KNEE
• Manufacturer (Section D): ZIMMER BIOMET, INC.; 1800 w. center st.; warsaw IN 46580
• Manufacturer (Section G): ZIMMER BIOMET, INC.; 1800 w. center st.; warsaw IN 46580
• Manufacturer Contact: jennifer rapsavage ; 56 e. bell dr.; warsaw, IN 46582 ; 5745260384
• MDR Report Key: 16860487
• Report Number: 0001822565-2023-01195
• Device Sequence Number: 17664781
• Product Code: MBH
• UDI-Device Identifier: 00889024510555
• UDI-Public: (01)00889024510555(17)320413(10)65354116
• Combination Product (Y/N): N
• Initial Reporter Country: AS
• PMA/510(K) Number: K173417
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Device Implanted Year: 2022
• Device Explanted Year: 2023
• Serviced by Third Party (Y/N): Unknown
• Reporter Type: Manufacturer
• Report Source: Foreign,Health Professional,Company Representative
• Initial Reporter Occupation: Physician
• Type of Report: Initial,Followup
• Report Date (Section B): 08/17/2023

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 Model Number: N/A
• Device Catalogue Number: 42530007101
• Device Lot Number: 65354116
• Was Device Available for Evaluation?: No
• Is the Reporter a Health Professional?: Yes
• Was the Report Sent to FDA?: No
• Type of Report(Section G): Thirty-Day
• Initial Date Received by Manufacturer: 04/13/2023
• Supplement Date Received by Manufacturer: 08/17/2023
• Initial Report FDA Received Date: 05/03/2023
• Supplement Report FDA Received Date: 08/17/2023
• Was Device Evaluated by Manufacturer? (Y/N): Device Not Returned to Manufacturer
• Date Device Manufactured: 04/16/2022
• 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
• If action reported to FDA under 21 USC 360i(g), list FDA-assigned Recall Number or include a statement: N/A
• Patient Sequence Number: 1
• Outcome Attributed to Adverse Event: Hospitalization; Required Intervention
• Patient Sex: Female
• Patient Weight: 125 KG