MAUDE Adverse Event Report: MEDACTA INTERNATIONAL SA QUADRA H FEMORAL STEMS; QUADRA STEM STANDARD HAP 12/14 S.0

Model Number	01.12.020
Medical Device Problem Code	Osseointegration Problem (3003)
Health Effect - Clinical Code	Aseptic loosening (4883)
Date of Event	02/26/2026
Type of Reportable Event	Serious Injury
Additional Manufacturer Narrative
Batch review: lot 148475: (b)(4) items manufactured and released on 09-apr-2015.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.Visual inspection: during the analysis it is evaluated the expianted stem.The body is completely free of ha coating.Absorption of ha from the stem body can indicate that metabolic activity was taking place and that, presumably, adequate bone contact was achieved at the time of surgery.Postoperative x-rays might have provided additional information, such as the evaluation of possible early rotational instability or initial stress-shielding, but they were not made available for investigation.Some signs of minor damage and scratches are present on the neck of the explanted stem, which is likely due to the revision surgery and not relevant to the reported issue.Based on the analysis completed and information available, it is not possible to identify a root cause of the stem loosening reported.Root cause: aseptic loosening is possible literature described adverse event after primary hip arthroplasties and causes are often unknown.There is no indication that any potential issue with the device may have caused or contributed to the event and the investigation does not indicate any potential manufacturing related issue or systemic deficiency.
Event or Problem Description
Revision surgery due to stem loosening about 10 years and 5 months after primary surgery.

• Brand Name: QUADRA H FEMORAL STEMS
• Common Device Name: QUADRA STEM STANDARD HAP 12/14 S.0
• 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: 24741266
• Report Number: 3005180920-2026-00227
• Device Sequence Number: 8772501
• Product Code: JDI
• UDI-Device Identifier: 07630030802010
• UDI-Public: 07630030802010
• Combination Product (Y/N): N
• PMA/510(K) Number: K082792
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Device Implanted Year: 2015
• 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): 03/31/2026

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 Expiration Date: 02/29/2020
• Device Model Number: 01.12.020
• Device Lot Number: 148475
• Was Device Available for Evaluation?: Device Returned to Manufacturer
• Date Returned to Manufacturer: 03/26/2026
• Type of Report(Section G): Thirty-Day
• Initial Date Received by Manufacturer: 03/03/2026
• Initial Report FDA Received Date: 03/31/2026
• Was Device Evaluated by Manufacturer? (Y/N): Yes
• Date Device Manufactured: 04/09/2015
• 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: 58 YR
• Patient Sex: Female