MAUDE Adverse Event Report: MEDACTA INTERNATIONAL SA SHOULDER SYSTEM; GLENOSPHERE - Ø42X24.5

Model Number	04.01.0171
Medical Device Problem Code	Adverse Event Without Identified Device or Use Problem (2993)
Health Effect - Clinical Codes	Joint Laxity (4526); Implant Pain (4561)
Date of Event	04/21/2026
Type of Reportable Event	Serious Injury
Event or Problem Description
At 1 year and 8 months from the primary, the patient came in complaining of instabilityand discomfort during range of motion.The surgeon suspected the greater tuberosity was protruding proximally to the metaphysis.He removed some of the greater tuberosity, revised the glenosphere to alat.Glenosphere and the liner to a constrained liner.The surgery was completed successfully.
Additional Manufacturer Narrative
Batch review performed on (b)(6) 2026 reverse shoulder system 04.01.0171 glenosphere - d 42x24.5 (k170452) lot 2346509: (b)(4) items manufactured and released on 16-apr-2024.Expiration date: 2029-apr-03.No anomalies found related to the problem.To date, (b)(4) items of the same lot have been sold with no similar reported event during the period of review.Reverse shoulder system 04.01.0126 humeral reverse hc liner d 42/+3mm (k170452) lot 2308782: (b)(4) items manufactured and released on 08-aug-2023.Expiration date: 2028-jul-0243.No anomalies found related to the problem.To date, (b)(4) items of the same lot have been sold with no similar reported event during the period of review.Root cause: based on the information available no definitive root cause can be established, while there is no indication that any potential issue with the device may have caused or contributed to the event, and the device history record review does not indicate any potential manufacturing related issue.

• Brand Name: SHOULDER SYSTEM
• Common Device Name: GLENOSPHERE - Ø42X24.5
• Manufacturer (Section D): MEDACTA INTERNATIONAL SA; strada regina; castel san pietro 6874 ; SZ 6874
• Manufacturer Contact: marco giannessi ; strada regina; castel san pietro 6874 ; SZ 6874
• MDR Report Key: 25185350
• Report Number: 3005180920-2026-00440
• Device Sequence Number: 18804839
• Product Code: PHX
• UDI-Device Identifier: 07630040706582
• UDI-Public: 07630040706582
• Combination Product (Y/N): N
• PMA/510(K) Number: K170452
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Device Implanted Year: 2024
• Device Explanted Year: 2026
• Serviced by Third Party (Y/N): N
• Reporter Type: Manufacturer
• Report Source: Company Representative
• Initial Reporter Occupation: Other
• Type of Report: Initial
• Report Date (Section B): 05/15/2026

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: Health Professional
• Device Model Number: 04.01.0171
• Device Lot Number: 2346509
• Was Device Available for Evaluation?: No
• Type of Report(Section G): Thirty-Day
• Initial Date Received by Manufacturer: 04/21/2026
• Initial Report FDA Received Date: 05/15/2026
• Was Device Evaluated by Manufacturer? (Y/N): Device Not Returned to Manufacturer
• Date Device Manufactured: 04/16/2024
• 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 Sex: Male
• Patient Race: White