MAUDE Adverse Event Report: ONKOS SURGICAL ELEOS LIMB SALVAGE SYSTEM; CEMENTED SEGMENTAL STEM

Lot Number	90743
Medical Device Problem Code	Adverse Event Without Identified Device or Use Problem (2993)
Health Effect - Clinical Code	Aseptic loosening (4883)
Date of Event	02/18/2025
Type of Reportable Event	Serious Injury
Additional Manufacturer Narrative
The root cause of this complaint was not determined.
Event or Problem Description
It was reported by (b)(6), an onkos sales representative, that a 77-year-old male patient with an eleos distal femur replacement underwent a revision due to loosening of the femoral stem.

• Brand Name: ELEOS LIMB SALVAGE SYSTEM
• Common Device Name: CEMENTED SEGMENTAL STEM
• Manufacturer (Section D): ONKOS SURGICAL; 77 east halsey road; parsippany NJ 07054
• Manufacturer (Section G): ONKOS SURGICAL; 77 east halsey road; parsippany NJ 07054
• Manufacturer Contact: yara neurauter ; 77 east halsey road; parsippany, NJ 07054 ; 8447672766
• MDR Report Key: 21597260
• Report Number: 3013450937-2025-00032
• Device Sequence Number: 8878097
• Product Code: KRO
• UDI-Device Identifier: B278CS1712003M0
• UDI-Public: B278CS1712003M0
• Combination Product (Y/N): N
• Initial Reporter Country: US
• PMA/510(K) Number: K161520
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Device Implanted Year: 2023
• Device Explanted Year: 2025
• Serviced by Third Party (Y/N): N
• Reporter Type: Manufacturer
• Report Source: Health Professional
• Initial Reporter Occupation: Other Health Care Professional
• Type of Report: Initial
• Report Date (Section B): 03/13/2025

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
• Device Lot Number: 90743
• Was Device Available for Evaluation?: No
• Is the Reporter a Health Professional?: Yes
• Type of Report(Section G): Thirty-Day
• Initial Date Received by Manufacturer: Not provided
• Initial Report FDA Received Date: 03/13/2025
• Was Device Evaluated by Manufacturer? (Y/N): No
• Date Device Manufactured: 08/11/2021
• 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: 77 YR
• Patient Sex: Male