MAUDE Adverse Event Report: WRIGHT MEDICAL TECHNOLOGY INC INFINITY TALAR DOME SZ 4 TOTAL ANKLE SYSTEM; PROSTHESIS, ANKLE, SEMI-CONSTRAINED, CEMENTED, METAL/POLYMER

Catalog Number	33630024
Medical Device Problem Codes	Osseointegration Problem (3003); Migration (4003); Implant subsidence (4078)
Health Effect - Clinical Codes	Cyst(s) (1800); Inadequate Osseointegration (2646); Insufficient Information (4580)
Date of Event	03/25/2025
Type of Reportable Event	Serious Injury
Additional Manufacturer Narrative
The device is not available for evaluation as it remains implanted in the patient therefore an evaluation of the device cannot be performed.If additional information becomes available, it will be provided on a supplemental report.
Event or Problem Description
The digital stryker prophecy team received a ct scan indicating that the patient may require a revision surgery due to talus subsidence.
Event or Problem Description
The digital stryker prophecy team received a ct scan indicating that the patient may require a revision surgery due to talus subsidence.
Additional Manufacturer Narrative
Correction to d4 (gtin) and h6 (device code and clinical signs code).The complaint could be confirmed, since the information for evaluation matches the alleged failure.Upon further investigation of the ct scans by healthcare professionals the following was observed: the ct scan shows clear radiolucence and small cysts adjacent to the talar component.The talus is loosened and subsided.The underlying cause of the failure is not clear, but likely patient related.However, failure of total ankle replacement tar over time is a known complication.In case of a planned revision procedure a medical opinion aiming to determine the root cause of the failure is part of the internal investigation process.Sufficient radiological and clinical information must be provided to enable a meaningful clinical assessment and to identify possible causes of failure.In cases where a ct scan is the only available clinical source, this assessment is limited.No conclusive statement can be provided, because key clinical information e.G.Clinical status, exact symptoms and range of motion of the patient, assessment of the treating physician is missing.The root causes of radiographic findings such as radiolucent areas and bone cysts are often complex and multifactorial and cannot be determined scientifically without this decisive evidence.Due to these limitations, we are unable in such cases to provide statements about the patient, the procedure and or the device in relation to cause of the failure.A review of the device history was not possible because the lot number was not communicated.No corrective actions are required at this time.A review of the labeling did not indicate any abnormalities.Indications of material, manufacturing, or design related problems were unable to be identified as the lot number was not communicated.More detailed information about the complaint event must be available in order to determine the root cause of the complaint event.If the device is returned or if any additional information is provided, the investigation will be reassessed.

• Brand Name: INFINITY TALAR DOME SZ 4 TOTAL ANKLE SYSTEM
• Common Device Name: PROSTHESIS, ANKLE, SEMI-CONSTRAINED, CEMENTED, METAL/POLYMER
• Manufacturer (Section D): WRIGHT MEDICAL TECHNOLOGY INC; 1023 cherry rd; memphis TN 38117
• Manufacturer (Section G): WRIGHT MEDICAL TECHNOLOGY, INC.; 11576 memphis arlington rd; arlington TN 38002
• Manufacturer Contact: cécile lefeuvre ; 325 corporate drive; mahwah, NJ 07430 ; 2018315000
• MDR Report Key: 21860999
• Report Number: 3010667733-2025-00476
• Device Sequence Number: 7982076
• Product Code: HSN
• UDI-Device Identifier: 00840420122056
• UDI-Public: (01)00840420122056(11)200610(17)280608(10)1684500
• Combination Product (Y/N): N
• Initial Reporter Country: US
• PMA/510(K) Number: K123954
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Reporter Type: Manufacturer
• Report Source: Health Professional
• Initial Reporter Occupation: Physician
• Type of Report: Initial,Followup
• Report Date (Section B): 06/17/2025

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: Lay User/Patient
• Device Catalogue Number: 33630024
• Device Lot Number: 1684500
• Was Device Available for Evaluation?: No
• Is the Reporter a Health Professional?: Yes
• Type of Report(Section G): Initial
• Initial Date Received by Manufacturer: 03/25/2025
• Supplement Date Received by Manufacturer: 05/21/2025
• Initial Report FDA Received Date: 04/17/2025
• Supplement Report FDA Received Date: 06/17/2025
• Was Device Evaluated by Manufacturer? (Y/N): No
• Date Device Manufactured: 06/10/2020
• 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: Other
• Patient Sex: Unknown