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Triathlon 5531-G-513Recalls & reported problems

Howmedica Osteonics Corp. · Tibial Bearing Insert · Class 2 · Implant

All models of Triathlon (608)

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

Adverse event reports
15
Deaths reported
0
Injuries reported
14
Recalls naming it
0

Summary

The FDA's MAUDE database contains 15 adverse event reports that list this exact device (DI 07613327045888), received between May 24, 2017 and Aug 12, 2024 — classified as 14 injuries, 1 malfunction.

The most frequently reported specific device problem is “Insufficient Device Problem Information” (7 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: 1 reportsJul 2024: 0 reportsAug 2024: 2 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: 0 reportsJun 2026: 0 reportsJul 2026: 0 reportsAug 2026: 0 reportsSep 2026: 0 reportsOct 2026: 0 reports2024202520262
Last 36 months. The most recent month may be incomplete.

Most reported problems

Device problems

  • Insufficient Device Problem Information7
  • Unstable4
  • Adverse Event Without Identified Device or Use Problem3
  • Degraded1
  • Fracture1
  • Material Discolored1

Patient problems

  • Injury5
  • Joint Laxity3
  • Pain3
  • Unspecified Infection3
  • Ambulation or Postural Difficulties1
  • Arthritis1
  • Hematoma1
  • Joint Dislocation1

Recent adverse event reports

The 15 most recent of 15 reports, in the reporter's own words as published by the FDA.

  • InjuryAug 12, 2024Unstable; Unstable

    THIS PI IS FOR LEFT KNEE. PATIENT WOULD LIKE TO KNOW IF IMPLANTS ARE SUBJECT TO A RECALL. PATIENT REPORTED PAIN, WEAKNESS AND INSTABILITY.

    Patient problems: Joint Laxity; Pain

    MAUDE report 19967848 ↗
  • InjuryAug 9, 2024Unstable; Unstable

    PATIENT WOULD LIKE TO KNOW IF IMPLANTS ARE SUBJECT TO A RECALL. THIS PI IS FOR RIGHT KNEE. UPDATE: 18-JUL-2024: PATIENT REPORTED PAIN, WEAKNESS AND INSTABILITY.

    Patient problems: Joint Laxity; Pain

    MAUDE report 19947594 ↗
  • InjuryJun 13, 2024Degraded; Fracture; Degraded; Fracture

    PATIENT SHOWED TO CLINIC WITH SIGNIFICANT IMBALANCE IN JOINT SPACE. UPON REVISION WE FOUND THE POSTERIOR MEDIAL CORNER OF THE POLY HAD BEEN BROKEN. IT WAS THE RIGHT KNEE.

    Patient problems: Ambulation or Postural Difficulties

    MAUDE report 19528877 ↗
  • InjuryAug 22, 2022Adverse Event Without Identified Device or Use Problem; Adverse Event Without Identified Device or Use Problem

    IT WAS REPORTED THAT THE PATIENT'S LEFT KNEE WAS REVISED. THE PATIENT HAD A RUPTURED QUADRICEPS TENDON. WHILE PERFORMING TENDON REPAIR, SURGEON DECIDED TO EXCHANGE THE 5X13 INSERT FOR ANOTHER 5X13 INSERT.

    Patient problems: Rupture

    MAUDE report 15263737 ↗
  • InjuryMar 23, 2021Adverse Event Without Identified Device or Use Problem; Adverse Event Without Identified Device or Use Problem

    SEPTIC ARTHRITIS, LEFT KNEE. ARTHROTOMY, IRRIGATION, AND DEBRIDEMENT AND TIBIAL POLYETHYLENE EXCHANGE FOR INFECTED LEFT TOTAL KNEE REPLACEMENT.

    Patient problems: Arthritis; Unspecified Infection

    MAUDE report 11555617 ↗
  • InjuryMar 23, 2021Unstable; Unstable

    IT WAS REPORTED THAT THE PATIENT'S LEFT KNEE WAS REVISED DUE TO INSTABILITY. THE PATIENT'S ENTIRE CR KNEE WAS REVISED TO A TS KNEE. REP PROVIDED PRIMARY USAGE AND CONFIRMED THAT NO FURTHER INFORMATION WILL BE RELEASED BY THE HOSPITAL OR SURGEON.

    Patient problems: Joint Laxity

    MAUDE report 11555005 ↗
  • InjuryDec 21, 2020Adverse Event Without Identified Device or Use Problem; Adverse Event Without Identified Device or Use Problem

    IT WAS REPORTED THROUGH THE SUBMISSION OF A REVISION USAGE SHEET THAT THE PATIENT'S LEFT KNEE WAS REVISED. A SIZE 5 TRIATHLON TIBIAL COMPONENT AND 5 X 13 CS INSERT WERE REVISED TO A SIZE 4 TRIATHLON TIBIAL COMPONENT AND 4 X 14 CS INSERT. SPOKE TO REP, PATIENT WAS REVISED ONE DAY AFTER THE PRIMARY. SURGEON NOTICED SOME MEDICAL OVERHANG ON THE TIBIAL COMPONENT WHICH HAD SHIFTED. SURGEON TOOK OUT LINER AND TIBIAL COMPONENT AND DOWNSIZED BOTH. WHEN DOWNSIZING THE POLY, SURGEON DECIDED TO INCREASE THE THICKNESS.

    Patient problems: No Clinical Signs, Symptoms or Conditions

    MAUDE report 11044949 ↗
  • InjuryOct 9, 2020Insufficient Device Problem Information; Insufficient Device Problem Information

    IT WAS REPORTED THAT THE PATIENT'S RIGHT KNEE WAS REVISED DUE TO FLEXION CONTRACTURE. THE PATIENT'S CR KNEE WAS REVISED TO AN MRH KNEE (PATELLAR COMPONENT WAS RETAINED). REP PROVIDED THE REVISION USAGE SHEET AND CONFIRMED THAT NO FURTHER INFORMATION WILL BE RELEASED BY THE HOSPITAL OR SURGEON.

    Patient problems: Loss of Range of Motion

    MAUDE report 10654376 ↗
  • InjuryAug 20, 2019Insufficient Device Problem Information; Insufficient Device Problem Information

    THIS PI IS FOR THE RIGHT KNEE. AS REPORTED IN PI (B)(4): IT WAS REPORTED BY THE SALE REP THAT THE HCP IS CONCERNED OVER A/P INSTABILITY & ANTERIOR SUBLUXATION OF FEMUR USING CS INSERT AFTER THE PRIMARY SURGERY. REFER PHOTO IN INTAKE TAB. PATIENT FUNCTION IS NORMAL. PRIMARY SURGERY : (B)(6) 2019. PATIENT HAS NOT BEEN REVISED AS OF THE TIME OF CREATION OF THIS PI. IN RESPONSE TO FOLLOW-UP FOR PI (B)(4), A USAGE SHEET WAS PROVIDED AND NO FURTHER INFORMATION IS AVAILABLE AS IT IS BEING HELD BY THE HOSPITAL.

    Patient problems: Joint Dislocation

    MAUDE report 8913409 ↗
  • InjuryJul 2, 2019Insufficient Device Problem Information; Insufficient Device Problem Information

    IT WAS REPORTED THROUGH THE COMMUNICATION OF AN ATTORNEY THAT ALLEGEDLY THE PATIENT WAS REVISED DUE TO "FAILED LEFT TOTAL KNEE ARTHROPLASTY".

    Patient problems: Injury

    MAUDE report 8755077 ↗
  • InjuryJul 2, 2019Insufficient Device Problem Information; Insufficient Device Problem Information

    THIS PI IS FOR THE RIGHT HIP. IT WAS REPORTED THROUGH THE COMMUNICATION OF AN ATTORNEY THAT ALLEGEDLY THE PATIENT WAS REVISED DUE TO "RIGHT KNEE PAIN, STATUS POST RIGHT TOTAL KNEE ARTHROPLASTY."

    Patient problems: Injury; Pain

    MAUDE report 8753509 ↗
  • InjuryDec 19, 2018Material Discolored; Unstable; Material Discolored; Unstable

    SENT TO SEM AND INVESTIGATE THE YELLOW COLORING COMPONENTS. IMPLANTED TRN-TKA. ACL-INCOMPETENT KNEE, ABSENCE OF INTERNAL AND EXTERNAL CARTILAGE, OA, HYPEREXTENDED KNEE. AFTER SEVERAL WEEKS, SWELLING, INSTABILITY AND HEMATOMA WERE OBSERVED, SO THE SYNOVECTOMY WAS PERFORMED. SUSPECTED INFECTION, BUT IT WAS DECIDED AN INFECTION NEGATIVE BASED ON INVESTIGATION. SINCE HEMATOMA WAS AGAIN OBSERVED, SYNOVIAL RESECTION AND INSERT EXCHANGED. THERE IS NO INFECTION. SYNOVIAL PROLIFERATION WAS EXTENDED DOWN TO THE INSERT. THE REPLACEMENT NEW INSERT WAS AN INCREASED THICKNESS OF 16 MM.

    Patient problems: Hematoma; Injury; Swelling

    MAUDE report 8181290 ↗
  • InjuryOct 16, 2018Insufficient Device Problem Information; Insufficient Device Problem Information

    THE PATIENT HAD RIGHT KNEE REPLACEMENT ON (B)(6) 2018. PATIENT UNDERWENT I&D WITH POLYETHYLENE LINER EXCHANGED ON (B)(6) 2018.

    Patient problems: Injury; Unspecified Infection

    MAUDE report 7968828 ↗
  • InjuryApr 11, 2018Insufficient Device Problem Information; Insufficient Device Problem Information

    PATIENT UNDERWENT I&D WITH LINER EXCHANGE FOLLOWING PRIMARY [LEFT] TKA [DUE TO PERIPROSTHETIC JOINT INFECTION].

    Patient problems: Injury; Unspecified Infection

    MAUDE report 7421360 ↗
  • MalfunctionMay 24, 2017Insufficient Device Problem Information; Insufficient Device Problem Information

    CS POLY WAS REPLACED BY SAME SIZE BECAUSE IT WAS NOT FULLY SEATED WHEN LOCKING MECHANISM WAS ENGAGED.

    Patient problems: No Known Impact Or Consequence To Patient

    MAUDE report 6588481 ↗

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

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Sources and updates

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