MAUDE Adverse Event Report: WRIGHT MEDICAL TECHNOLOGY INC UNKNOWN INFINITY TALAR COMPONENT; PROSTHESIS, ANKLE, SEMI-CONSTRAINED, CEMENTED, METAL/POLYMER

Catalog Number	UNK_WWA
Medical Device Problem Codes	Adverse Event Without Identified Device or Use Problem (2993); Osseointegration Problem (3003)
Health Effect - Clinical Codes	Cyst(s) (1800); Inadequate Osseointegration (2646)
Date of Event	12/07/2025
Type of Reportable Event	Serious Injury
Additional Manufacturer Narrative
Based on the available information the device will not be returned therefore an evaluation of the device cannot be performed.A review of the device history is not possible because the lot number was not communicated.Should additional information become available, it will be provided in 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 a large cyst in the talus.
Event or Problem Description
The digital stryker prophecy team received a ct scan indicating that the patient may require a revision surgery due to a large cyst in the talus.In addition to the cyst under the talus the was report of collapsed talar dome.The patient was initially doing excellent post primary.The patient was compliant to mobilization instructions of the surgeon.No images are available.Oa was provided as the indication the implant was initially used.
Additional Manufacturer Narrative
The reported event could be confirmed since images of ct scans were provided and shows loosening and subsidence of the talar component.Upon further investigation of the ct scans by healthcare professionals the following was observed: the ct scan shows only minor radiolucence and little change adjacent to the tibial component.The talar component however, shows radiolucence and anterior subsidence with some migration.Therefore, the loosened and migrated component can be confirmed with the given ct scan.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.More detailed information about the complaint event as well as the affected device must be available in order to determine the root cause of the complaint event.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.If the device is returned or if any additional information is provided, the investigation will be reassessed.

• Brand Name: UNKNOWN INFINITY TALAR COMPONENT
• 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: dannielle stap ; 325 corporate drive; mahwah, NJ 07430 ; 2018315000
• MDR Report Key: 23875449
• Report Number: 3010667733-2025-01558
• Device Sequence Number: 20226571
• Product Code: HSN
• UDI-Device Identifier: 00840420122049
• UDI-Public: 00840420122049
• Combination Product (Y/N): N
• Initial Reporter Country: EI
• 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): 04/14/2026

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?: No
• Operator of Device: Lay User/Patient
• Device Catalogue Number: UNK_WWA
• Device Lot Number: UNKNOWN
• Was Device Available for Evaluation?: No
• Is the Reporter a Health Professional?: Yes
• Type of Report(Section G): Initial
• Initial Date Received by Manufacturer: 12/09/2025
• Supplement Date Received by Manufacturer: 03/24/2026
• Initial Report FDA Received Date: 12/23/2025
• Supplement Report FDA Received Date: 04/14/2026
• Was Device Evaluated by Manufacturer? (Y/N): No
• 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