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Triathlon 5532-G-709Recalls & reported problems

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

All models of Triathlon (608)

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

Adverse event reports
22
Deaths reported
0
Injuries reported
20
Recalls naming it
0

Summary

The FDA's MAUDE database contains 22 adverse event reports that list this exact device (DI 07613327046274), received between Sep 28, 2017 and Jul 17, 2025 — classified as 20 injuries, 2 malfunctions.

The most frequently reported specific device problem is “Insufficient Device Problem Information” (11 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: 3 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 reports2024202520263
Last 36 months. The most recent month may be incomplete.

Most reported problems

Device problems

  • Insufficient Device Problem Information11
  • Adverse Event Without Identified Device or Use Problem6
  • Fracture2
  • Unstable2
  • Crack1
  • Detachment Of Device Component1
  • Device Difficult to Setup or Prepare1
  • Malposition of Device1

Patient problems

  • Injury14
  • Unspecified Infection7
  • Pain4
  • Loss of Range of Motion3
  • Ambulation or Postural Difficulties2
  • No Known Impact Or Consequence To Patient2
  • Bacterial Infection1
  • Inflammation1

Recent adverse event reports

The 22 most recent of 22 reports, in the reporter's own words as published by the FDA.

  • InjuryJul 17, 2025Adverse Event Without Identified Device or Use Problem; Adverse Event Without Identified Device or Use Problem

    THE FOLLOWING WAS REPORTED: "AS PART OF AN INVESTIGATOR INITIATED STUDY, A SPREADSHEET WAS PROVIDED INDICATING THAT AN MUA WAS PERFORMED ON THE PATIENT'S LEFT KNEE".

    Patient problems: Loss of Range of Motion

    MAUDE report 22538814 ↗
  • InjuryJul 11, 2025Adverse Event Without Identified Device or Use Problem; Adverse Event Without Identified Device or Use Problem

    AS PART OF AN INVESTIGATOR INITIATED STUDY, A SPREADSHEET WAS PROVIDED INDICATING THAT AN MUA WAS PERFORMED ON THE PATIENT'S RIGHT KNEE.

    Patient problems: Loss of Range of Motion

    MAUDE report 22477614 ↗
  • InjuryJul 9, 2025Insufficient Device Problem Information; Insufficient Device Problem Information

    AS PART OF AN INVESTIGATOR INITIATED STUDY, A SPREADSHEET WAS PROVIDED INDICATING THAT AN MUA WAS PERFORMED ON THE PATIENT'S LEFT KNEE.

    Patient problems: Ambulation or Postural Difficulties

    MAUDE report 22458758 ↗
  • InjuryApr 14, 2021Fracture; Fracture

    IT WAS REPORTED THAT THE PATIENT'S RIGHT KNEE WAS REVISED DUE TO PATIENT DISLOCATING (FEMORAL COMPONENT RIDING OFF THE POSTERIOR OF THE INSERT). INTRA-OPERATIVELY, THE POST OF THE INSERT WAS FOUND TO HAVE BROKEN OFF OF THE INSERT. THE PATIENT WAS REVISED FROM A 7X9 PS INSERT TO A 7X12 PS INSERT. THERE ARE NO ALLEGATIONS AGAINST THE FEMORAL COMPONENT, WHICH WAS NOT REVISED. REP CONFIRMED THAT NO FURTHER INFORMATION WOULD BE RELEASED BY THE HOSPITAL OR SURGEON.

    Patient problems: Ambulation or Postural Difficulties

    MAUDE report 11668857 ↗
  • InjuryMar 23, 2021Adverse Event Without Identified Device or Use Problem; Adverse Event Without Identified Device or Use Problem

    (B)(6) YEAR-OLD MALE WHO PRESENTS WITH LEFT KNEE PAIN. HE IS NOW 11 MONTHS STATUS POST LEFT TOTAL KNEE REPLACEMENT. HE HAD BEEN DOING EXTREMELY WELL UP UNTIL ABOUT A WEEK AGO. HE NOW PRESENTS WITH ACUTE WORSENING OF LEFT KNEE PAIN WITH SWELLING AND SUBJECTIVE FEVERS. THE TIMING OF THIS EVENT WAS FOLLOWING A DENTAL PROCEDURE AND ALSO DOING WORK AT HIS LAKE HOUSE. HE HAS NO OPEN WOUNDS OR RECENT INFECTIONS. X-RAYS LOOK GOOD WITH NO EVIDENCE OF LOOSENING OR MECHANICAL FAILURE. BLOOD WORK AND LEFT KNEE ASPIRATION RESULTS DEMONSTRATE LEFT KNEE INFECTION WITH STREPTOCOCCUS ANGINOSUS. I THINK THIS LIKELY REPRESENTS A LATE HEMATOGENOUS ACUTE INFECTION. I HAVE RECOMMENDED IRRIGATION AND DEBRIDEMENT OF THE LEFT KNEE WITH IMPLANT RETENTION AND POLYETHYLENE EXCHANGE.

    Patient problems: Bacterial Infection

    MAUDE report 11555545 ↗
  • InjuryJan 19, 2021Adverse Event Without Identified Device or Use Problem; Adverse Event Without Identified Device or Use Problem

    IN PROVIDING RECORDS FOR A REVISION OF THE PATIENT'S LEFT KNEE ON (B)(6) 2019, AN OFFICE VISIT NOTE FROM (B)(6) 2019 INDICATES "A SIZEABLE EFFUSION OF THE LEFT KNEE." AN ASPIRATION "OF 80 CC OF BLOODY, THIN FLUID" WAS PERFORMED. STUDY SITE CONFIRMED THAT NO FURTHER INFORMATION WILL BE RELEASED.

    Patient problems: Inflammation; Unspecified Infection

    MAUDE report 11192929 ↗
  • InjuryJun 24, 2020Insufficient Device Problem Information; Insufficient Device Problem Information

    AS REPORTED: "CASE: RIGHT REVISION TKA, POLY LINER EXCHANGE. DIAGNOSIS: HISTORY OF TKA, RIGHT. CHRONIC PAIN OF RIGHT KNEE. NO FURTHER INFO AVAILABLE PER HOSPITAL." A 7X9 PS INSERT WAS EXCHANGED FOR A 7X11 PS INSERT.

    Patient problems: Injury; Pain

    MAUDE report 10189479 ↗
  • InjuryMar 12, 2020Adverse Event Without Identified Device or Use Problem; Insufficient Device Problem Information; Adverse Event Without Identified Device or Use Problem; Insufficient Device Problem Information

    AS REPORTED: "WASH OUT/POLY SWAP. INFECTED TOTAL RIGHT KNEE."

    Patient problems: Injury; Unspecified Infection

    MAUDE report 9822893 ↗
  • InjuryFeb 12, 2020Insufficient Device Problem Information; Insufficient Device Problem Information

    IT WAS REPORTED THAT THE PATIENT'S RIGHT KNEE WAS REVISED DUE TO INFECTION. A 7X9 PS INSERT WAS SWAPPED FOR ANOTHER 7X9 PS INSERT.

    Patient problems: Injury; Unspecified Infection

    MAUDE report 9702460 ↗
  • InjuryJun 28, 2019Unstable; Unstable

    IT WAS REPORTED THAT THE PATIENT'S LEFT KNEE WAS REVISED. AS REPORTED BY REP: "THE PATIENT WAS GETTING OUT OF A CHAIR AND THE FEMUR JUMPED THE POLY POST ANTERIORLY. THE PATIENT TOOK A PHOTO OF THIS OCCURRENCE AND SHOWED IT TO THE SURGEON OR HE WOULDN'T HAVE BELIEVED THIS WAS POSSIBLE. SINCE THEN THE PATIENT HAS COMPLAINED OF A UNSTABLE KNEE ASSOCIATED WITH PAIN". SURGEON DECIDED TO IMPLANT A THICKER POLY WITH COMMENT "...AN INDUSTRY POTENTIAL CRITICISM OF THIS KNEE IS THAT THE POST DOES NOT INCREASE IN SIZE AS THE IMPLANT GETS LARGER".

    Patient problems: Injury; Pain

    MAUDE report 8743711 ↗
  • InjuryJun 27, 2019Unstable; Unstable

    IN PROVIDING INFORMATION FOR A REVISION FOR A DIFFERENT PATIENT, REP SUPPLIED AN OPERATIVE REPORT THAT MADE REFERENCE TO SEEING THE SAME DEVICE BEHAVIOR IN A PREVIOUS PATIENT. REP WAS ABLE TO OBTAIN SOME PATIENT AND DEVICE INFORMATION FOR THIS ADDITIONAL CASE. AS REPORTED BY THE REP: "THE PATIENT WAS GETTING OUT OF A CHAIR AND THE FEMUR JUMPED THE POLY POST ANTERIORLY. SINCE THEN THE PATIENT HAS COMPLAINED OF A UNSTABLE KNEE ASSOCIATED WITH PAIN." PATIENT HAS SINCE BEEN REVISED TO A THICKER INSERT.

    Patient problems: Injury; Pain

    MAUDE report 8738875 ↗
  • InjuryJun 11, 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 " RIGHT KNEE PAIN, HYPERTROPHIC SYNOVIUM, STATUS-POST TOTAL KNEE ARTHROPLASTY."

    Patient problems: Injury; Pain; Synovitis

    MAUDE report 8687087 ↗
  • InjuryFeb 22, 2019Insufficient Device Problem Information; Insufficient Device Problem Information

    POSTOPERATIVE DIAGNOSIS: PATIENT UNDERWENT LEFT TOTAL KNEE REPLACEMENT (B)(6) 2018. PATIENT UNDERWENT A RIGHT REVISION TOTAL KNEE ARTHROPLASTY TO TREAT INFECTION (B)(6) 2018. ALL COMPONENTS EXCHANGED.

    Patient problems: Injury; Unspecified Infection

    MAUDE report 8361453 ↗
  • InjuryFeb 18, 2019Crack; Fracture; Crack; Fracture

    IT WAS REPORTED THAT THE PATIENT'S RIGHT KNEE WAS REVISED DUE TO INSTABILITY. INTRAOPERATIVELY, THE POST ON THE PS INSERT WAS NOTED TO BE BROKEN. A 7X9 PS INSERT WAS REVISED TO A 7X11 PS INSERT.

    Patient problems: Injury

    MAUDE report 8347939 ↗
  • InjuryJan 2, 2019Insufficient Device Problem Information; Insufficient Device Problem Information

    PATIENT HAD A PRIMARY TOTAL KNEE (B)(6) 2018. PATIENT SHOWED UP FOR FOLLOW UP WITH WOUND COMPLICATIONS. PATIENT WAS TAKEN TO THE OR FOR A SUSPECTED INFECTION. SURGEON NOTED THE WOUND WAS CLEAN BUT HAD SOME NECROTIC TISSUE. THE POLY WAS EXCHANGED AS A PRECAUTION. SURGEON ALSO NOTED THAT THE PATIENT WAS ON ANTI CANCER DRUGS THAT CONTRIBUTED TO THE WOUND BREAKDOWN. WOUND WAS COPIOUSLY IRRIGATED AND THE POLY EXCHANGED SUCCESSFULLY. UPDATE (B)(4) 2018: SPOKE TO REP. INFECTION WAS NOT CONFIRMED BY PATHOLOGY BUT SURGEON REPORTED THAT HE FELT THERE WAS NO INFECTION. REP PROVIDED PRIMARY AND REVISION IMPLANT SHEETS, AND REPORTED THAT NO ADDITIONAL INFORMATION IS AVAILABLE DUE TO HOSPITAL POLICY.

    Patient problems: Injury; Post Operative Wound Infection

    MAUDE report 8210226 ↗
  • InjuryJul 16, 2018Insufficient Device Problem Information; Insufficient Device Problem Information

    IT WAS REPORTED THAT A FIRST-STAGE REVISION WAS PERFORMED ON THE PATIENTS' LEFT KNEE WITH THE IMPLANTATION OF A "2-STAGE SPACER" AFTER ALL PRIMARY IMPLANTS WERE REMOVED.

    Patient problems: Injury; Unspecified Infection

    MAUDE report 7691300 ↗
  • MalfunctionMar 23, 2018Device Difficult to Setup or Prepare; Device Difficult to Setup or Prepare

    SURGEON ATTEMPTED TO IMPACT TIBIAL INSERT AS PER USUAL TECHNIQUE (USING CORRECT INSERT IMPACTOR). HOWEVER, INSERT WOULD NOT ENGAGE AS IT SHOULD AND WHEN THE SURGEON TOOK THE INSERT OUT FOR FURTHER INSPECTION, IT WAS NOTED THAT THE WIRE HAD COMPLETELY DETACHED FROM THE INSERT. THE INITIAL CR INSERT WAS REPLACED WITH A CS EQUIVALENT INSERT.

    Patient problems: No Known Impact Or Consequence To Patient

    MAUDE report 7365291 ↗
  • InjuryMar 22, 2018Insufficient Device Problem Information; Insufficient Device Problem Information

    COMPANY REP REPORTED THAT PATIENT HAD A POLY SWAP DUE TO INFECTION.

    Patient problems: Injury; Unspecified Infection

    MAUDE report 7363661 ↗
  • InjuryMar 22, 2018Insufficient Device Problem Information; Insufficient Device Problem Information

    IT WAS REPORTED THAT A STAGE ONE REVISION OF PATIENT'S LEFT KNEE WAS PERFORMED DUE TO INFECTION.

    Patient problems: Injury; Unspecified Infection

    MAUDE report 7363655 ↗
  • MalfunctionFeb 2, 2018Detachment Of Device Component; Scratched Material; Detachment Of Device Component; Scratched Material

    IT HAS BEEN REPORTED BY THE CUSTOMER THAT THE WIRE SURROUNDING THE POLYETHYLENE IS LOOSE.

    Patient problems: No Known Impact Or Consequence To Patient

    MAUDE report 7235446 ↗
  • InjuryDec 11, 2017Migration or Expulsion of Device; Malposition of Device; Adverse Event Without Identified Device or Use Problem; Migration or Expulsion of Device; Malposition of Device; Adverse Event Without Identified Device or Use Problem

    DOCTOR REPORTED PATIENT PRESENTED TO EMERGENCY DEPARTMENT ON (B)(6) (APPROXIMATELY 6 MONTHS POST TRIATHLON PS TOTAL KNEE REPLACEMENT) WITH A LOCKED KNEE POST REPORTED HYPERFLEXION (PATIENT CROUCHING TO TIE HIS CONTRALATERAL SHOE LACE). FINDINGS ON X-RAY REVEALED A MALPLACED FEMORAL COMPONENT OVER THE INSERT POST OF THE TIBIAL INSERT. THE PATIENT'S KNEE WAS RELOCATED UNDER ANAESTHETIC ON (B)(6).

    Patient problems: Injury; Loss of Range of Motion

    MAUDE report 7104468 ↗
  • InjurySep 28, 2017Insufficient Device Problem Information; Insufficient Device Problem Information

    AS REPORTED: "INCISION AND DRAINAGE OF LEFT TOTAL KNEE".

    Patient problems: Injury

    MAUDE report 6900833 ↗

Other PROSTHESIS, KNEE, PATELLO/FEMOROTIBIAL, SEMI-CONSTRAINED, UNCEMENTED, POROUS, COATED, POLYMER/METAL/POLYMER devices

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Sources and updates

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