MAUDE Adverse Event Report: MEDACTA INTERNATIONAL SA SMS STEM; SMS SOLID STEM STD SIZE 4

Model Number	01.36.044
Medical Device Problem Code	Adverse Event Without Identified Device or Use Problem (2993)
Health Effect - Clinical Code	Unequal Limb Length (4534)
Date of Event	08/07/2025
Type of Reportable Event	Serious Injury
Additional Manufacturer Narrative
Batch review performed on 8 august 2025: lot 2348705: (b)(4) items manufactured and released on 22-apr-2024.Expiration date: 07-apr-2029.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.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.
Event or Problem Description
The patient came in reporting pain and instability due to a leg length discrepancy.About 2 weeks after the primary surgery, the surgeon revised the stem, head and liner.The patient was long by 6mm; downsizing the head would not be enough; he had to downsize the stem to address the length.The stem was downsized and revised with the same size liner and head.The surgery was completed successfully.

• Brand Name: SMS STEM
• Common Device Name: SMS SOLID STEM STD SIZE 4
• Manufacturer (Section D): MEDACTA INTERNATIONAL SA; strada regina; castel san pietro, switzerland 6874 ; SZ 6874
• Manufacturer (Section G): MEDACTA INTERNATIONAL SA; strada regina; castel san pietro, switzerland 6874 ; SZ 6874
• Manufacturer Contact: marco giannessi ; strada regina; castel san pietro, switzerland 6874 ; SZ 6874
• MDR Report Key: 22902786
• Report Number: 3005180920-2025-00820
• Device Sequence Number: 20837608
• Product Code: LZO
• UDI-Device Identifier: 07630030888632
• UDI-Public: 07630030888632
• Combination Product (Y/N): N
• Initial Reporter Country: US
• PMA/510(K) Number: K181693
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Device Implanted Year: 2025
• Device Explanted Year: 2025
• Serviced by Third Party (Y/N): N
• Reporter Type: Manufacturer
• Report Source: Other
• Initial Reporter Occupation: Non-Healthcare Professional
• Type of Report: Initial
• Report Date (Section B): 08/27/2025

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: Health Professional
• Device Model Number: 01.36.044
• Device Lot Number: 2348705
• Was Device Available for Evaluation?: No
• Type of Report(Section G): Thirty-Day
• Initial Date Received by Manufacturer: 08/07/2025
• Initial Report FDA Received Date: 08/27/2025
• Was Device Evaluated by Manufacturer? (Y/N): No
• Date Device Manufactured: 04/22/2024
• 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 Age: 33 YR
• Patient Sex: Female
• Patient Weight: 72 KG
• Patient Race: White