MAUDE Adverse Event Report: MEDACTA INTERNATIONAL SA STEM: AMISTEM H HA COATED STD SIZE 7; FEMORAL CEMENTLESS STEM

Model Number	01.18.137
Medical Device Problem Code	Osseointegration Problem (3003)
Health Effect - Clinical Code	Insufficient Information (4580)
Date of Event	04/28/2021
Type of Reportable Event	Serious Injury
Additional Manufacturer Narrative
Batch review performed on 10 may 2021: lot 102743: (b)(4) items manufactured and released on 13-sep-2010.Expiration date: 2015-08-31.No anomalies found related to the problem.To date, (b)(4) items of the same lot have been already sold.No other similar events have been reported on this lot since 2017.Clinical evaluation performed by medacta medical affairs department: femoral component revision performed 10.5 years after primary cementless total hip arthroplasty in (b)(6) year old man.In the radiographic image provided, radiolucent lines and signs of stress shielding are visible.Aseptic loosening is a possible literature described adverse event after primary cementless hip arthroplasties and causes are often unknown.The reason of this failure cannot be determined.
Event or Problem Description
Revision surgery performed 10 years 6 months after the primary due to aseptic stem loosening.Stem and head successfully revised.

• Brand Name: STEM: AMISTEM H HA COATED STD SIZE 7
• Common Device Name: FEMORAL CEMENTLESS STEM
• Manufacturer (Section D): MEDACTA INTERNATIONAL SA; strada regina; castel san pietro, 6874 ; SZ 6874
• MDR Report Key: 11885811
• Report Number: 3005180920-2021-00437
• Device Sequence Number: 17052382
• Product Code: LZO
• UDI-Device Identifier: 07630030804137
• UDI-Public: 07630030804137
• Combination Product (Y/N): N
• Initial Reporter Country: SZ
• PMA/510(K) Number: K093944
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Device Implanted Year: 2010
• Device Explanted Year: 2021
• Serviced by Third Party (Y/N): N
• Reporter Type: Manufacturer
• Report Source: company representative
• Initial Reporter Occupation: Non-Healthcare Professional
• Type of Report: Initial
• Report Date (Section B): 05/26/2021

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: 08/31/2015
• Device Model Number: 01.18.137
• Device Catalogue Number: 01.18.137
• Device Lot Number: 102743
• Was Device Available for Evaluation?: No
• Type of Report(Section G): Thirty-Day
• Initial Date Received by Manufacturer: 04/28/2021
• Initial Report FDA Received Date: 05/26/2021
• Is This a Single-Use Device that was Reprocessed and Reused on a Patient? (Y/N): No
• Patient Sequence Number: 1
• Outcome Attributed to Adverse Event: Required Intervention
• Patient Age: 71 YR
• Patient Weight: 108