MAUDE Adverse Event Report: WRIGHT MEDICAL TECHNOLOGY INC INFINITY ADAPTIS TIB SZ4 INFINITY ADAPTIS; PROSTHESIS, ANKLE, SEMI-CONSTRAINED, CEMENTED, METAL/POLYMER

Catalog Number	33680004
Medical Device Problem Codes	Loss of Osseointegration (2408); Osseointegration Problem (3003)
Health Effect - Clinical Codes	Cyst(s) (1800); Inadequate Osseointegration (2646)
Date of Event	01/05/2026
Type of Reportable Event	Serious Injury
Event or Problem Description
The stryker prophecy team has received a ct scan for upcoming revision surgery due to progressive anterior tibial subsidence as well as posterior talar lucency consistent with subchondral cyst formation due to abnormal ankle joint mechanics/pressures.
Additional Manufacturer Narrative
Upon completion of the investigation, additional information will be provided in a supplemental report.
Additional Manufacturer Narrative
Correction: h6 (device code).The reported event could be confirmed based on available information and assessment of ct scans by medical expert.The device inspection was not possible as the product was not returned for investigation.A review of the device history for the reported lot did not indicate any abnormalities.No corrective actions are required at this time.A review of the labeling did not indicate any abnormalities.No indications of material, manufacturing or design related problems were found during the investigation.Upon assessment of available ct scans medical expert opined that in the provided ct scans the device components look intact.Subsidence of tibial component can be clearly observed, but no definitive loosening can be seen.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.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.If the device is returned or if any additional information is provided, the investigation will be reassessed.
Event or Problem Description
The stryker prophecy team has received a ct scan for upcoming revision surgery due to progressive anterior tibial subsidence as well as posterior talar lucency consistent with subchondral cyst formation due to abnormal ankle joint mechanics/pressures.

• Brand Name: INFINITY ADAPTIS TIB SZ4 INFINITY ADAPTIS
• 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: 24194246
• Report Number: 3010667733-2026-00072
• Device Sequence Number: 20849338
• Product Code: HSN
• UDI-Device Identifier: 00889797069663
• UDI-Public: (01)00889797069663(11)220628(17)300628(10)1734731
• Combination Product (Y/N): N
• Initial Reporter State: IN
• Initial Reporter Country: US
• PMA/510(K) Number: K181557
• 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): 04/16/2026

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: 33680004
• Device Lot Number: 1734731
• Was Device Available for Evaluation?: No
• Is the Reporter a Health Professional?: Yes
• Type of Report(Section G): Initial
• Initial Date Received by Manufacturer: 01/05/2026
• Supplement Date Received by Manufacturer: 03/25/2026
• Initial Report FDA Received Date: 01/27/2026
• Supplement Report FDA Received Date: 04/16/2026
• Was Device Evaluated by Manufacturer? (Y/N): No
• Date Device Manufactured: 06/28/2022
• 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
• Patient Sequence Number: 1
• Outcome Attributed to Adverse Event: Other
• Patient Sex: Unknown