MAUDE Adverse Event Report: TREACE MEDICAL CONCEPTS, INC. 4.0MM COMPRESSION SCREW SYSTEM - INTERFRAG

Model Number	SK25
Medical Device Problem Code	Adverse Event Without Identified Device or Use Problem (2993)
Health Effect - Clinical Code	Nonunion/Delayed-union Bone Fracture (2369)
Date of Event	01/31/2023
Type of Reportable Event	Serious Injury
Event or Problem Description
It was reported that after an initial bunion surgery on (b)(6) 2022, the hardware was removed in a revision surgery on (b)(6) 2023 due to a nonunion.The site was revised with bone filler and non-tmc hardware.No other patient outcomes were reported as a result of this event.
Additional Manufacturer Narrative
It was reported that after an initial bunion surgery on (b)(6) 2022, the hardware was removed in a revision surgery on (b)(6) 2023 due to a nonunion.The site was revised with bone filler and non-tmc hardware, which had fewer fixation points in the bone.No other patient outcomes were reported as a result of this event.Additional information indicates within eight weeks of the bunion surgery, the patient's calcium level declined to zero, she had two blood clots, and was prescribed two different bone-thinners by a different provider.The surgeon believes the patient's depleted calcium paired with the patient's post-surgery activity resulted in the nonunion.No devices were returned for evaluation.The device history records were reviewed and no nonconformances or issues during the manufacture or release of the devices were identified that could have contributed to what was reported.Although a number of factors could have contributed to what was reported, based on information provided, the most likely cause of the reported event is the patient's bone quality and post-op activity.The company will supplement this mdr as necessary and appropriate.Additional tmc device explanted in the same revision surgery was reported in mdr 3011623994-2023-00043.

• Brand Name: 4.0MM COMPRESSION SCREW SYSTEM - INTERFRAG
• Common Device Name: SCREW
• Manufacturer (Section D): TREACE MEDICAL CONCEPTS, INC.; 100 palmetto park place; ponte vedra FL 32081
• Manufacturer (Section G): TREACE MEDICAL CONCEPTS, INC.; 100 palmetto park place; ponte vedra FL 32081
• Manufacturer Contact: uriza shums ; 100 palmetto park place; ponte vedra, FL 32081 ; 9043735940
• MDR Report Key: 16475910
• Report Number: 3011623994-2023-00044
• Device Sequence Number: 3150812
• Product Code: HWC
• UDI-Device Identifier: 00853114006174
• UDI-Public: 00853114006174
• Combination Product (Y/N): N
• Initial Reporter State: FL
• Initial Reporter Country: US
• PMA/510(K) Number: K172617
• 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: Company Representative
• Initial Reporter Occupation: Non-Healthcare Professional
• Type of Report: Initial
• Report Date (Section B): 03/02/2023

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?: No
• Operator of Device: Health Professional
• Device Expiration Date: 11/01/2024
• Device Model Number: SK25
• Device Lot Number: 38827
• Was Device Available for Evaluation?: No
• Type of Report(Section G): Thirty-Day
• Initial Date Received by Manufacturer: 01/31/2023
• Initial Report FDA Received Date: 03/03/2023
• Was Device Evaluated by Manufacturer? (Y/N): Device Not Returned to Manufacturer
• Date Device Manufactured: 11/01/2021
• 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
• Outcome Attributed to Adverse Event: Required Intervention
• Patient Age: 65 YR
• Patient Sex: Female