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Triathlon 5526-B-300Recalls & reported problems

Howmedica Osteonics Corp. · Primary Tibial Baseplate · Class 2 · Implant

All models of Triathlon (608)

Data updated Oct 18, 2026 from official FDA records · Editorial policy

Adverse event reports
4
Deaths reported
0
Injuries reported
4
Recalls naming it
0

Summary

The FDA's MAUDE database contains 4 adverse event reports that list this exact device (DI 07613327041347), received between Feb 1, 2018 and May 22, 2026 — classified as 4 injuries.

The most frequently reported specific device problem is “Malposition of Device” (3 reports).

Reports come from manufacturers, hospitals and patients and are not verified by the FDA. A report does not prove the device caused the event, and counts can't be used to compare devices or estimate failure rates. What reports can and can't tell you · How this data works · Data updated Oct 18, 2026.

Reports received per month

Nov 2023: 0 reportsDec 2023: 0 reportsJan 2024: 0 reportsFeb 2024: 0 reportsMar 2024: 0 reportsApr 2024: 0 reportsMay 2024: 0 reportsJun 2024: 0 reportsJul 2024: 0 reportsAug 2024: 0 reportsSep 2024: 0 reportsOct 2024: 0 reportsNov 2024: 0 reportsDec 2024: 0 reportsJan 2025: 0 reportsFeb 2025: 0 reportsMar 2025: 0 reportsApr 2025: 0 reportsMay 2025: 0 reportsJun 2025: 0 reportsJul 2025: 0 reportsAug 2025: 0 reportsSep 2025: 0 reportsOct 2025: 0 reportsNov 2025: 0 reportsDec 2025: 0 reportsJan 2026: 0 reportsFeb 2026: 0 reportsMar 2026: 0 reportsApr 2026: 0 reportsMay 2026: 1 reportsJun 2026: 0 reportsJul 2026: 0 reportsAug 2026: 0 reportsSep 2026: 0 reportsOct 2026: 0 reports2024202520261
Last 36 months. The most recent month may be incomplete.

Most reported problems

Device problems

  • Malposition of Device3
  • Positioning Problem2
  • Fracture1

Patient problems

  • Injury2
  • Joint Laxity2
  • Insufficient Information1
  • Pain1

Recent adverse event reports

The 4 most recent of 4 reports, in the reporter's own words as published by the FDA.

  • InjuryMay 22, 2026Fracture

    THE FOLLOWING INFORMATION WAS PROVIDED: A PIECE OF THE POSTERIOR PART OF A TRIATHLON BASEPLATE HAS BROKEN OFF INSIDE THE PATIENT.¿ INSTABILITY AND PAIN IN THE PATIENT.

    Patient problems: Insufficient Information; Joint Laxity; Pain

    MAUDE report 25260173 ↗
  • InjuryApr 24, 2023Malposition of Device; Malposition of Device

    KNEE REVISION. REASON FOR REVISION: INSTABILITY. UPDATE - IN THIS PARTICULAR CASE THE FEMORAL COMPONENT WAS PLACED POSTERIOR TO ITS IDEAL POSITION AND THE TIBIAL IMPLANT WAS PLACED IN A GREATER DEGREE OF FLEXION THAN IDEAL.

    Patient problems: Joint Laxity

    MAUDE report 16793261 ↗
  • InjuryAug 22, 2018Malposition of Device; Positioning Problem; Malposition of Device; Positioning Problem

    KNEE REVISION DUE TO INSTABILITY. UPDATE BASED ON MEDICAL REVIEW: BASEPLATE MALPOSITION IN EXCESSIVE POSTERIOR TIBIAL SLOPE AND EXCESSIVE PROXIMAL TIBIAL BONE REMOVAL HAVE RENDERED THE PCL DYSFUNCTIONAL WITH SEVERE INSTABILITY.

    Patient problems: Injury

    MAUDE report 7805553 ↗
  • InjuryFeb 1, 2018Malposition of Device; Positioning Problem; Malposition of Device; Positioning Problem

    THE SURGEON REPORTED VIA THE SALES REP, PER-OLAF BRETTMAR THAT A FEMALE PATIENT UNDERWENT A REVISION OF THE LEFT KNEE ON (B)(6) 2017 DUE TO A FRACTURED TIBIAL INSERT SIZE 3 9MM. IT WAS FURTHER REPORTED THAT THE PATIENT HAD EXPERIENCED A TWISTING TRAUMA TO THE KNEE APPROXIMATELY 2 MONTHS PRIOR TO THE REVISION. IT WAS FURTHER REPORTED THAT THE OPERATION BEGAN AS AN EXPLORATORY ENDOSCOPY BUT WAS TRANSFERRED TO AN OPEN PROCEDURE WHEN IT WAS DISCOVERED THAT THE INSERT HAD FRACTURED. IT WAS FURTHER REPORTED THAT THE INSERT WAS REPLACED WITH A SIZE 3 11MM INSERT AND THAT THE PRIMARY OPERATION TOOK PLACE ON (B)(6) 2016. UPDATE: THE MEDICAL REVIEW CONCLUDED MALPOSITION OF BOTH THE FEMORAL COMPONENT AND THE BASEPLATE.

    Patient problems: Injury

    MAUDE report 7233636 ↗

Other PROSTHESIS, KNEE, PATELLOFEMOROTIBIAL, SEMI-CONSTRAINED, CEMENTED, POLYMER/METAL/POLYMER devices

All PROSTHESIS, KNEE, PATELLOFEMOROTIBIAL, SEMI-CONSTRAINED, CEMENTED, POLYMER/METAL/POLYMER devices →

Sources and updates

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