MAUDE Adverse Event Report: ZIMMER BIOMET, INC. CONSTRAINED TIBIAL ARTICULAR SURFACE PROVISIONAL LEFT SIZE GH +0 THICKNESS; PROSTHESIS, KNEE

Model Number	N/A
Medical Device Problem Code	Fracture (1260)
Health Effect - Clinical Code	No Clinical Signs, Symptoms or Conditions (4582)
Date of Event	12/16/2021
Type of Reportable Event	Malfunction
Additional Manufacturer Narrative
(b)(4).The complainant has not yet indicated whether the product will be returned to zimmer biomet for investigation.The investigation is in process.Once the investigation has been completed, a follow-up mdr will be submitted.
Event or Problem Description
It was reported that the surgeon was trialing with an articular surface.The gap space was super tight and while trying to retrieve the trials, that composed of 2 taps and a shim, one of the tasps broke in 2 pieces.There was no consequences or impact to the patient.Attempts have been made and no further information has been provided.
Event or Problem Description
No further event information available at the time of this report.
Additional Manufacturer Narrative
This follow-up is being submitted to relay additional information.The results of the investigation are as follows: performed a visual inspection of the returned item and found it to exhibit signs of repeated use and is fractured on the medial side of the post feature.All pieces were returned.Photographs were also referenced.-the device history records for item were reviewed for deviations and/ or anomalies with no deviations/ anomalies identified.Fractured tasps were analyzed by optical microscopy revealing hackle marks and river lines in the case of bending overload; and hackle marks, river lines and striations were found in the case of low cycle fatigue culminating in a bending overload failure type.In addition to the visual and optical microscopy analysis, a review of the dhf and dfmea was performed.Ongoing complaint monitoring confirms that the rate of instrument fracture is within the expected risk profile as specified in the dfmea.A definitive root cause cannot be determined.If any further information is found which would change or alter any conclusions or information, a supplemental will be filed accordingly.Zimmer biomet will continue to monitor for trends.

• Brand Name: CONSTRAINED TIBIAL ARTICULAR SURFACE PROVISIONAL LEFT SIZE GH +0 THICKNESS
• Common Device Name: PROSTHESIS, KNEE
• Manufacturer (Section D): ZIMMER BIOMET, INC.; 56 e. bell drive; warsaw IN 46582
• Manufacturer (Section G): ZIMMER BIOMET, INC.; 56 e. bell drive; warsaw IN 46582
• Manufacturer Contact: christina arnt ; 56 e. bell dr.; warsaw, IN 46582 ; 5745273773
• MDR Report Key: 13175142
• Report Number: 0001822565-2021-03656
• Device Sequence Number: 4561312
• Product Code: MBH
• UDI-Device Identifier: 00889024238992
• UDI-Public: (01)00889024238992(10)62957071
• Combination Product (Y/N): N
• Initial Reporter State: FL
• Initial Reporter Country: US
• PMA/510(K) Number: N/A
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Serviced by Third Party (Y/N): Unknown
• Reporter Type: Manufacturer
• Report Source: Health Professional,Distributor
• Initial Reporter Occupation: Physician
• Type of Report: Initial,Followup
• Report Date (Section B): 01/13/2022

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: N/A
• Device Catalogue Number: 42517600707
• Device Lot Number: 62957071
• Was Device Available for Evaluation?: Device Returned to Manufacturer
• Date Returned to Manufacturer: 12/31/2021
• 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: 12/17/2021
• Supplement Date Received by Manufacturer: 01/13/2022
• Initial Report FDA Received Date: 01/06/2022
• Supplement Report FDA Received Date: 01/18/2022
• Was Device Evaluated by Manufacturer? (Y/N): Yes
• Date Device Manufactured: 02/08/2015
• Is the Device Labeled for Single Use? (Y/N): No
• Is This a Single-Use Device that was Reprocessed and Reused on a Patient? (Y/N): No
• Usage of Device: Unknown
• 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
• Patient Sex: Male