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Triathlon 5515-F-401Recalls & reported problems

Howmedica Osteonics Corp. · Posterior Stabilized Femoral · Class 2 · Implant

All models of Triathlon (608)

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

Adverse event reports
11
Deaths reported
0
Injuries reported
10
Recalls naming it
0

Summary

The FDA's MAUDE database contains 11 adverse event reports that list this exact device (DI 07613327050387), received between Apr 3, 2017 and Apr 21, 2025 — classified as 10 injuries, 1 malfunction.

The most frequently reported specific device problem is “Insufficient Device Problem Information” (5 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: 1 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: 0 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

  • Insufficient Device Problem Information5
  • Malposition of Device2
  • Adverse Event Without Identified Device or Use Problem1
  • Difficult to Open or Remove Packaging Material1
  • Fracture1
  • Osseointegration Problem1
  • Unstable1

Patient problems

  • Injury5
  • Bone Fracture(s)4
  • Fall2
  • Inadequate Osseointegration2
  • Pain2
  • Ambulation or Postural Difficulties1
  • Deformity/ Disfigurement1
  • No Known Impact Or Consequence To Patient1

Recent adverse event reports

The 11 most recent of 11 reports, in the reporter's own words as published by the FDA.

  • InjuryApr 21, 2025Malposition of Device; Malposition of Device

    AS REPORTED: "REV LTKA- FOR LOOSE TIBIA AND MAL ALIGNMENT." A PS KNEE WAS CONVERTED TO A TS KNEE WITH STEMS AND AUGMENTS. REP CONFIRMED THAT NO FURTHER INFORMATION WILL BE RELEASED BY THE HOSPITAL OR SURGEON.

    Patient problems: Ambulation or Postural Difficulties

    MAUDE report 21875176 ↗
  • InjuryAug 1, 2023Adverse Event Without Identified Device or Use Problem; Adverse Event Without Identified Device or Use Problem

    PATIENT HAD A PRIMARY LEFT TKA ON (B)(6) 2022. THE PATIENT FELL AND HAD A PERIPROSTHETIC FRACTURE AROUND THE FEMUR B2. UNDERWENT REVISION FOR ALL COMPONENTS EXCEPT THE PATELLA. TIBIAL BASEPLATE WAS REVISED DUE TO CHANGE THE CONSTRUCT.

    Patient problems: Bone Fracture(s); Fall

    MAUDE report 17438308 ↗
  • InjuryOct 20, 2021Malposition of Device; Malposition of Device

    SURGEON NOT HAPPY WITH OUTCOME OF SURGERY. PT STARTED IN VALGUS ENDED UP IN VARUS.

    Patient problems: Deformity/ Disfigurement

    MAUDE report 12665211 ↗
  • InjuryApr 27, 2021Insufficient Device Problem Information; Insufficient Device Problem Information

    IT WAS REPORTED THAT THE PATIENT'S LEFT KNEE WAS REVISED DUE TO PAIN AND SWELLING, AND DISLOCATION OF THE PATIENT'S RESURFACED PATELLA. THE TIBIAL COMPONENT AND INSERT WERE REVISED. NO INTRA-OPERATIVE FINDINGS OR SURGEON OPINION WAS REPORTED TO THE REP AS TO WHY THE TIBIA WAS REVISED. REP PROVIDED THE REVISION USAGE SHEET, CONFIRMED THERE WERE NO ALLEGATIONS AGAINST THE REVISED INSERT, AND CONFIRMED THAT NO FURTHER INFORMATION WILL BE RELEASED BY THE HOSPITAL OR SURGEON.

    Patient problems: Pain; Swelling/ Edema

    MAUDE report 11730569 ↗
  • InjuryOct 23, 2020Insufficient Device Problem Information; Insufficient Device Problem Information

    IT WAS REPORTED THAT THE PATIENT'S LEFT KNEE WAS REVISED DUE TO PAIN AND ASEPTIC LOOSENING (IT WAS NOT REPORTED TO THE REP WHICH SPECIFIC DEVICE(S) LOOSENED). A FEMORAL COMPONENT, BASEPLATE AND INSERT WERE REVISED TO A TS KNEE CONSTRUCT WITH FEMORAL AND TIBIAL AUGMENTS, AND STEMS. REP PROVIDED THE PRIMARY AND REVISION USAGE SHEETS AND CONFIRMED THAT NO FURTHER INFORMATION WILL BE RELEASED.

    Patient problems: Inadequate Osseointegration; Pain

    MAUDE report 10725078 ↗
  • InjurySep 26, 2019Insufficient Device Problem Information; Insufficient Device Problem Information

    PATIENT FELL RECENTLY AND HAD DISTAL FEMUR FRACTURE FROM ORIGINAL SURGERY DATE OF (B)(6) 2018. TODAY'S SURGERY IS TO REMOVE ORIGINALLY PLACED LEFT TOTAL KNEE AND REVISE TO GMRS DISTAL FEMORAL REPLACEMENT

    Patient problems: Bone Fracture(s); Injury

    MAUDE report 9123618 ↗
  • InjurySep 5, 2019Osseointegration Problem; Osseointegration Problem

    IT WAS REPORTED THROUGH THE COMMUNICATION OF AN ATTORNEY THAT ALLEGEDLY THE PATIENT WAS REVISED DUE TO ASEPTIC LOOSENING LEFT TOTAL KNEE REPLACEMENT AND MORBID OBESITY.

    Patient problems: Inadequate Osseointegration; Injury

    MAUDE report 8964583 ↗
  • InjuryJul 2, 2019Unstable; Unstable

    THIS PI IS FOR THE LEFT KNEE IT WAS REPORTED THROUGH THE COMMUNICATION OF AN ATTORNEY THAT ALLEGEDLY THE PATIENT WAS REVISED DUE TO "UNSTABLE LEFT TOTAL KNEE ARTHROPLASTY, ALL COMPONENTS." UPDATE (B)(6) 2019: AS PER MEDICAL REVIEW DATED (B)(6) 2019 "COMPONENT MALPOSITION OF TRIATHLON PS KNEE COMPONENTS WITH A ¿SIGNIFICANTLY ELEVATED JOINT LINE¿ HAS CONTRIBUTED TO GROSS INSTABILITY OF THE ARTHROPLASTY REQUIRING EXCHANGE OF ALL KNEE DEVICES AFTER 5-YEARS".

    Patient problems: Injury

    MAUDE report 8753913 ↗
  • InjuryMar 14, 2018Insufficient Device Problem Information; Insufficient Device Problem Information

    IT IS REPORTED BY COUNSEL FOR CLAIMANT PATIENT THAT CLAIMANT RECEIVED A LTKA PERFORMED BY DR. (B)(6) AT THE (B)(6) CLINIC IN (B)(6) ON (B)(6) 2017. A (B)(6) UNIT WAS USED DURING THE SURGERY. TWO WEEKS FOLLOWING HER LTKA, THE CLAIMANT EXPERIENCED A FEMUR FRACTURE. ACCORDING TO COUNSEL, THE FRACTURE WAS DUE TO A WEAKNESS IN THE FEMUR RESULTING FROM THE PINHOLE USED FOR (B)(6) COMPUTER NAVIGATION. THE CLAIMANT REQUIRED AN INTERNAL FIXATION ON (B)(6) 2017 TO REPAIR THE FRACTURE AND EXPERIENCED SUBSEQUENT COMPLICATIONS.

    Patient problems: Bone Fracture(s); Injury

    MAUDE report 7338787 ↗
  • MalfunctionFeb 16, 2018Difficult to Open or Remove Packaging Material; Difficult to Open or Remove Packaging Material

    AS REPORTED: "THIS HAS HAPPENED IN THE PAST. I'VE SUGGESTED PACKAGING BE CHANGED SO THE FEMUR DOES NOT 'STICK' TO THE PLASTIC MATERIAL MAKING IT VERY DIFFICULT FOR STAFF TO PASS IT OFF STERILE AND NOT DROPPING IT BY HAVING TO PULL IT VERY HARD OUT OF PACKAGE...".

    Patient problems: No Known Impact Or Consequence To Patient

    MAUDE report 7276912 ↗
  • InjuryApr 3, 2017Fracture; Insufficient Device Problem Information; Insufficient Device Problem Information

    THE PATIENT'S TOTAL KNEE REPLACEMENT WAS REVISED DUE TO A FALL THAT CAUSED A PERIPROSTHETIC FRACTURE AROUND THE DISTAL FEMORAL COMPONENT. A DISTAL FEMORAL ROTATING HINGE TKA WAS PERFORMED TO TREAT THE PROBLEM.

    Patient problems: Bone Fracture(s); Fall; Injury

    MAUDE report 6452870 ↗

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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