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Triathlon 5551-G-320-ERecalls & reported problems

Howmedica Osteonics Corp. · Asymmetric Patella · 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 07613327314649), received between Aug 11, 2021 and May 6, 2026 — classified as 4 injuries.

The most frequently reported specific device problem is “Fracture” (1 report).

7 other recalls cover devices cleared under the same FDA submission (K172634); they may or may not involve this specific model.

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: 1 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: 1 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

  • Adverse Event Without Identified Device or Use Problem2
  • Fracture1
  • Loss of Osseointegration1

Patient problems

  • Bone Fracture(s)1
  • Fall1
  • Inadequate Osseointegration1
  • Pain1
  • Unspecified Infection1

Recent adverse event reports

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

  • InjuryMay 6, 2026Adverse Event Without Identified Device or Use Problem

    THE FOLLOWING INFORMATION WAS PROVIDED: REVISION RIGHT PFJ DUE TO INFECTION. ARTICULATING SPACER WAS IMPLANTED TODAY. NO ADDITIONAL DETAILS TO BE REPORTED BY THE FACILITY.

    Patient problems: Unspecified Infection

    MAUDE report 25092417 ↗
  • InjuryNov 12, 2024Loss of Osseointegration; Loss of Osseointegration

    THIS PI IS FOR THE LEFT KNEE. AS REPORTED: "DR. IS ASKING FOR US TO DOCUMENT AN INSTANCE OF ASEPTIC LOOSENING FOR A PATIENT SHE OPERATED ON (B)(6) 2022. THE PATIENT HAD BILATERAL TKA AND IS NOW BEING REVISED ON BOTH SIDES FOR LOOSENING. SHE HAD SHARED THE IMPLANT INFORMATION AND ASKED THAT WE CHECK THE LOT NUMBERS FOR ANY RECALLS." NONE OF THE REPORTED IMPLANTS WERE SUBJECT TO RECALL.

    Patient problems: Inadequate Osseointegration

    MAUDE report 20666256 ↗
  • InjuryNov 4, 2023Adverse Event Without Identified Device or Use Problem; Adverse Event Without Identified Device or Use Problem

    PATIENT HAD A FALL, RUPTURED EXTENSOR MECHANISM AND LOOSENING OF THE TIBIAL COMPONENT. IMPLANTS REMOVED, CEMENT SPACER IMPLANTED. RIGHT TRIATHLON. SALES REPS RESPONSE CONFIRMS THAT ALL DEVICES WERE REMOVED.

    Patient problems: Bone Fracture(s); Fall

    MAUDE report 18070546 ↗
  • InjuryAug 11, 2021Fracture; Fracture

    IT WAS REPORTED THAT THE PATIENT'S LEFT KNEE WAS REVISED DUE TO ANTERIOR KNEE PAIN. INTRA-OPERATIVELY, THE PATELLAR COMPONENT WAS FOUND TO HAVE A LATERAL FRACTURE AND THE PEGS SHEARED OFF. THE PATELLAR COMPONENT AND LINER WERE REVISED. REP CAN PROVIDE PICTURES AND CONFIRMED THAT NO FURTHER INFORMATION WILL BE RELEASED BY THE HOSPITAL OR SURGEON.

    Patient problems: Pain

    MAUDE report 12306187 ↗

Recalls under the same FDA submission

These recalls involve devices cleared under K172634. One submission often covers many models, so check the product and lot details in each record.

  • Z-1265-2024 · Feb 6, 2024 · Open, Classified
    NO 4 TRIATHLON TS PLUS TIB INS X3 POLY 16 MM
  • Z-1263-2024 · Feb 6, 2024 · Open, Classified
    NO 3 TRIATHLON TS PLUS TIB INS X3 POLY 11 MM
  • Z-1262-2024 · Feb 6, 2024 · Open, Classified
    X3 TRIATHLON CS INSERT NO 7 9 MM
  • Z-1266-2024 · Feb 6, 2024 · Open, Classified
    NO 4 TRIATHLON TS PLUS TIB INS X3 POLY 16 MM
  • Z-1261-2024 · Feb 6, 2024 · Open, Classified
    X3 TRIATHLON CS INSERT NO 6 11 MM
  • Z-1264-2024 · Feb 6, 2024 · Open, Classified
    NO 4 TRIATHLON TS PLUS TIB INS X3 POLY 11 MM
  • Z-1654-2023 · Apr 13, 2023 · Open, Classified
    TRIATHLON X3 TIBIAL BEARING INSERT PS #4 13MM Intended for knee replacement Catalog Number: 5532-G-413-E

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

How reports and recalls are matched · Editorial policy · Report an error on this page