Triathlon 5532-G-409Recalls & 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
Quick summary
This Howmedica Osteonics Triathlon tibial bearing insert is the plastic spacer fitted between the metal parts of a knee replacement. The 27 reports mostly describe a knee feeling unstable or giving way, with revision surgery for infection, a sheared-off post or worn natural tissue;25 reports involve injuries and no deaths. No recalls name this device.
AI-generated from the FDA records on this page and checked automatically against the numbers below. Read the details before relying on it.
- Adverse event reports
- 27
- Deaths reported
- 0
- Injuries reported
- 25
- Recalls naming it
- 0
Summary
The FDA's MAUDE database contains 27 adverse event reports that list this exact device (DI 07613327050707), received between Jan 5, 2017 and Jul 11, 2025 — classified as 25 injuries, 2 malfunctions.
The most frequently reported specific device problem is “Insufficient Device Problem Information” (12 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
Most reported problems
Device problems
- Insufficient Device Problem Information12
- Adverse Event Without Identified Device or Use Problem8
- Unstable8
- Detachment of Device or Device Component1
- Fracture1
- Naturally Worn1
- Positioning Problem1
Patient problems
- Injury13
- Unspecified Infection9
- Insufficient Information4
- Joint Laxity3
- Pain3
- Ambulation or Postural Difficulties2
- Discomfort1
- Joint Disorder1
Recent adverse event reports
The 25 most recent of 27 reports, in the reporter's own words as published by the FDA.
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: Insufficient Information
MAUDE report 22477321 ↗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: Insufficient Information
MAUDE report 22458831 ↗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 22458503 ↗InjurySep 16, 2024Fracture; Fracture
IT WAS REPORTED THAT THE PATIENT'S RIGHT KNEE WAS REVISED DUE TO THE POST OF THE INSERT SHEARING OFF. THE INSERT WAS REVISED. REP REPORTED THAT NO FURTHER INFORMATION WOULD BE RELEASED BY THE HOSPITAL OR SURGEON.
Patient problems: Ambulation or Postural Difficulties
MAUDE report 20224346 ↗InjuryApr 15, 2024Adverse Event Without Identified Device or Use Problem; Adverse Event Without Identified Device or Use Problem
AS REPORTED, THE ISSUE IS ABOUT A RIGHT KNEE PROSTHESIS INFECTION. ( IMPLANTATION DATE : (B)(6) 2023).
Patient problems: Unspecified Infection
MAUDE report 19110064 ↗InjuryFeb 28, 2024Unstable; Unstable
PATIENT HAD A LEFT TKA ON (B)(6) 2017. PATIENT HAD A FALL AND STARTING HAVING SYMPTOMS OF INSTABILITY. PATIENT HAD A REVISION LEFT TKA ON (B)(6) 2023 WITH POLY EXCHANGE ONLY AND MCL REPAIR.
Patient problems: Joint Laxity
MAUDE report 18795439 ↗InjuryMar 8, 2023Adverse Event Without Identified Device or Use Problem; Adverse Event Without Identified Device or Use Problem
IT WAS REPORTED THAT THE PATIENT'S RIGHT KNEE WAS REVISED DUE TO INFECTION. A 4X9 PS INSERT WAS REVISED TO A 4X13 CS INSERT. REP CONFIRMED THAT NO FURTHER INFORMATION WILL BE RELEASED BY THE HOSPITAL OR SURGEON.
Patient problems: Unspecified Infection
MAUDE report 16504136 ↗InjuryApr 18, 2022Adverse Event Without Identified Device or Use Problem; Adverse Event Without Identified Device or Use Problem
IT WAS REPORTED THE PATIENT'S LEFT KNEE WAS REVISED. AS REPORTED BY REP: "PATIENT REVISED DUE TO POSSIBLE INFECTION." A 4X9 PS INSERT WAS SWAPPED.
Patient problems: Unspecified Infection
MAUDE report 14135108 ↗InjuryMar 13, 2022Unstable; Unstable
IT WAS REPORTED THAT THE PATIENT'S RIGHT KNEE WAS REVISED DUE TO PATIENT COMPLAINT OF DISCOMFORT AND MEDIAL LAXITY. A 4X9 PS INSERT WAS REVISED TO A 4X15 PS INSERT.
Patient problems: Discomfort; Joint Laxity
MAUDE report 13752570 ↗InjuryMay 19, 2021Unstable; Unstable
IT WAS REPORTED THAT THE PATIENT'S KNEE WAS REVISED DUE TO INSTABILITY. A 4X9 PS INSERT WAS REVISED TO A 4X13 PS INSERT. REP CONFIRMED THAT NO FURTHER INFORMATION WILL BE RELEASED BY THE HOSPITAL OR SURGEON.
Patient problems: Joint Laxity
MAUDE report 11847404 ↗InjuryJan 7, 2021Adverse Event Without Identified Device or Use Problem; Adverse Event Without Identified Device or Use Problem
IT WAS REPORTED THAT THE PATIENT'S RIGHT KNEE WAS REVISED DUE TO POSSIBLE INFECTION. AN IRRIGATION AND DEBRIDEMENT WAS PERFORMED WITH AN EXCHANGE OF A 4X9 PS INSERT FOR ANOTHER 4X9 PS INSERT. REP CONFIRMED THAT NO FURTHER INFORMATION WILL BE RELEASED BY THE HOSPITAL OR SURGEON.
Patient problems: Unspecified Infection
MAUDE report 11131884 ↗InjuryNov 15, 2020Adverse Event Without Identified Device or Use Problem; Insufficient Device Problem Information; Adverse Event Without Identified Device or Use Problem; Insufficient Device Problem Information
IT WAS REPORTED THROUGH THE COMMUNICATION OF AN ATTORNEY THAT ALLEGEDLY THE PATIENT WAS REVISED DUE TO PAINFUL FAILED LEFT TOTAL KNEE ARTHROPLASTY. UPDATE FROM MED REVIEW: (B)(6) 2017 OP REPORT: "REVISION LEFT TKA - FEMORAL AND TIBIAL COMPONENTS' FOR "PAINFUL, FAILED LEFT TKA WITH INADEQUATE FIXATION OF TIBIAL COMPONENT." " ...TIBIAL AND FEMORAL COMPONENTS REMOVED WITH OSTEOTOME - REVISED TO CEMENTED, MODULAR REVISION COMPONENTS. UNCOMPLICATED SURGERY - PATELLA NOT MENTIONED."
Patient problems: Pain
MAUDE report 10841560 ↗InjurySep 30, 2020Insufficient Device Problem Information; Insufficient Device Problem Information
SALES REP REPORTED, "PATIENT PRESENTED WITH LIMITED RANGE OF MOTION DUE TO THE FORMATION OF FIBROTIC TISSUE, AFOREMENTIONED TISSUE WAS REMOVED, THE JOINT WASHED OUT PER SURGEON¿S I&D PROTOCOL(S), AND X3 INSERT WAS SWAPPED OUT. NO COMPLAINTS FILED AGAINST THE IMPLANTS, NO FURTHER INFO MADE AVAILABLE." SALES REP CONFIRMED NO FURTHER INFORMATION WILL BE RELEASED.
Patient problems: Insufficient Information
MAUDE report 10604840 ↗MalfunctionSep 28, 2020Detachment of Device or Device Component; Adverse Event Without Identified Device or Use Problem; Insufficient Device Problem Information; Detachment of Device or Device Component; Adverse Event Without Identified Device or Use Problem; Insufficient Device Problem Information
THE FOLLOWING WAS REPORTED: DURING A PTG TRIATHLON PROCEDURE, THE SURGEON WAS UNABLE TO PLACE THE IMPLANT BECAUSE THE METAL RING BECAME DETACHED DURING INSERTION.
Patient problems: Insufficient Information; No Clinical Signs, Symptoms or Conditions
MAUDE report 10592499 ↗InjuryAug 27, 2020Insufficient Device Problem Information; Insufficient Device Problem Information
IT WAS REPORTED THAT A STAGE 1 REVISION WAS PERFORMED ON THE PATIENT'S LEFT KNEE DUE TO INFECTION. ALL IMPLANTS WERE REMOVED AND A SPACER PLACED. REP CONFIRMED THAT NO FURTHER INFORMATION WILL BE RELEASED BY THE HOSPITAL OR SURGEON.
Patient problems: Injury; Unspecified Infection
MAUDE report 10458125 ↗InjuryFeb 19, 2020Unstable; Unstable
IT WAS REPORTED THAT THE PATIENT'S RIGHT KNEE WAS REVISED DUE TO INSTABILITY. THE PATIENT'S PS KNEE CONSTRUCT WAS REVISED TO A TS KNEE CONSTRUCT. REP REPORTED THAT NO FURTHER INFORMATION WILL BE AVAILABLE.
Patient problems: Injury
MAUDE report 9728343 ↗MalfunctionFeb 14, 2020Unstable; Positioning Problem; Unstable; Positioning Problem
DURING MEDICAL PROCEDURE, THE SURGEON FOUND THAT TIBIAL INSERT WAS VERY HARD TO IMPLANT. AFTER BEAT SEVERAL TIMES, THE SURGEON FELT TIBIAL INSERT WAS INSTABILITY. AND THEN, THE SURGEON TOOK THE TIBIAL INSERT OUT TO IMPLANT AGAIN. BUT, THE WIRE WAS OUT OF INSERT AND COULD NOT BE USED AGAIN. FINALLY, THE OTHER REPLACEMENT WAS USED TO FINISH PROCEDURE. THE SURGERY WAS DELAY NEARLY 1 HOUR.
Patient problems: Injury; No Known Impact Or Consequence To Patient
MAUDE report 9711542 ↗InjuryDec 9, 2019Insufficient Device Problem Information; Insufficient Device Problem Information
AS REPORTED: "LEFT TOTAL KNEE REVISION, REMOVAL OF COMPONENTS, PLACEMENT OF ANTIBIOTIC SPACER. PRE-OP DIAGNOSIS: COMPLICATION ARTIFICIAL JOINT, FAILED TOTAL KNEE ARTHROPLASTY. NO FURTHER INFORMATION AVAILABLE PER HOSPITAL." SPOKE TO REP. INFECTION WAS VERBALLY REPORTED BY HOSPITAL STAFF.
Patient problems: Injury; Unspecified Infection
MAUDE report 9437860 ↗InjuryNov 4, 2019Insufficient Device Problem Information; Insufficient Device Problem Information
IT WAS REPORTED THAT THE PATIENT'S LEFT KNEE WAS REVISED DUE TO TRAUMATIC ARTHROTOMY AND WOUND DEHISCENCE. THE PATIENT REPORTED THAT SHE FELL WHEN RUNNING FROM HER COUCH. AN IRRIGATION AND DEBRIDEMENT WAS PERFORMED AND A 4X9 PS INSERT WAS SWAPPED. INFECTION WAS NOT CONFIRMED AS NO CULTURES WERE TAKEN. REP REPORTED THAT NO FURTHER INFORMATION WILL BE AVAILABLE.
Patient problems: Injury; Wound Dehiscence
MAUDE report 9274452 ↗InjurySep 4, 2019Naturally Worn; Naturally Worn
IT WAS REPORTED THROUGH THE COMMUNICATION OF AN ATTORNEY THAT ALLEGEDLY THE PATIENT WAS REVISED DUE TO PAINFUL LEFT TOTAL KNEE WITH OSTEOLYSIS OF THE TIBIAL COMPONENT, POLYETHYLENE WEAR.
Patient problems: Injury; Osteolysis; Pain
MAUDE report 8960146 ↗InjuryApr 11, 2019Unstable; Unstable
IT WAS REPORTED THAT THE PATIENT WAS REVISED DUE TO "FAILED RIGHT TOTAL KNEE ARTHROPLASTY (CHRONIC PROGRESSIVE INSTABILITY)".
Patient problems: Injury
MAUDE report 8504088 ↗InjuryJan 14, 2019Unstable; Unstable
InjuryDec 17, 2018Unstable; Unstable
IT WAS REPORTED THAT PATIENT'S LEFT KNEE WAS REVISED DUE TO INSTABILITY. A 4X9 INSERT WAS REVISED TO A 4X11 INSERT. REP REPORTED THAT NO OTHER INFORMATION IS AVAILABLE.
Patient problems: Injury
MAUDE report 8169205 ↗InjuryOct 9, 2018Insufficient Device Problem Information; Insufficient Device Problem Information
IT WAS REPORTED TO THE REP 13 DAYS POST-OP BY SURGEON THAT A STAGE 1 REVISION WAS PERFORMED ON PATIENT'S LEFT KNEE DUE TO INFECTION (INFECTION CONFIRMED BY PATHOLOGY BUT INFECTING MICROORGANISM NOT IDENTIFIED). ALL IMPLANTS WERE REMOVED AND A SPACER WAS IMPLANTED. NO STRYKER PERSONNEL WERE PRESENT FOR THE PROCEDURE.
Patient problems: Injury; Unspecified Infection
MAUDE report 7947949 ↗InjurySep 18, 2018Insufficient Device Problem Information; Insufficient Device Problem Information
THIS PI IS FOR REVISION OF PRIMARY IMPLANTS IN PATIENT'S LEFT KNEE ON (B)(6) 2017. WHILE REPORTING A REVISION OF PATIENT'S LEFT KNEE WHICH TOOK PLACE ON (B)(6) 2018, REP DISCOVERED THE PATIENT HAD A REVISION ON (B)(6) 2017 WITH A WASHOUT AND POLY EXCHANGE DUE TO INFECTION. NEITHER THE REP NOR ANYONE ON HIS TEAM WAS PRESENT FOR THE PROCEDURE. A SIZE 5 CS INSERT WAS TAKEN OUT OF CONSIGNMENT TO REPLACE A SIZE 4 PS INSERT ON A SIZE 4 BASEPLATE. REP REPORTED THAT X-RAYS, MEDICAL RECORDS, AND ADDITIONAL INFORMATION ARE NOT AVAILABLE DUE TO HOSPITAL POLICY.
Patient problems: Injury; Unspecified Infection
MAUDE report 7884917 ↗
Other PROSTHESIS, KNEE, PATELLO/FEMOROTIBIAL, SEMI-CONSTRAINED, UNCEMENTED, POROUS, COATED, POLYMER/METAL/POLYMER devices
- ATTUNE 1512-14-050Depuy (Ireland) · PROSTHESIS, KNEE, PATELLO/FEMOROTIBIAL, SEMI-CONSTRAINED, UNCEMENTED, POROUS, COATED, POLYMER/METAL/POLYMER106 reports
- ATTUNE 1504-40-205Depuy (Ireland) · PROSTHESIS, KNEE, PATELLO/FEMOROTIBIAL, SEMI-CONSTRAINED, UNCEMENTED, POROUS, COATED, POLYMER/METAL/POLYMER1 recall53 reports
- ATTUNE 1504-40-105Depuy (Ireland) · PROSTHESIS, KNEE, PATELLO/FEMOROTIBIAL, SEMI-CONSTRAINED, UNCEMENTED, POROUS, COATED, POLYMER/METAL/POLYMER1 recall46 reports
- ATTUNE 1547-06-001Depuy (Ireland) · PROSTHESIS, KNEE, PATELLO/FEMOROTIBIAL, SEMI-CONSTRAINED, UNCEMENTED, POROUS, COATED, POLYMER/METAL/POLYMER1 recall37 reports
- ATTUNE 1513-12-060Depuy (Ireland) · PROSTHESIS, KNEE, PATELLO/FEMOROTIBIAL, SEMI-CONSTRAINED, UNCEMENTED, POROUS, COATED, POLYMER/METAL/POLYMER72 reports
- Triathlon 5521-B-300Howmedica Osteonics Corp. · PROSTHESIS, KNEE, PATELLO/FEMOROTIBIAL, SEMI-CONSTRAINED, UNCEMENTED, POROUS, COATED, POLYMER/METAL/POLYMER1 recall19 reports
- Triathlon 5531-G-709-EHowmedica Osteonics Corp. · PROSTHESIS, KNEE, PATELLO/FEMOROTIBIAL, SEMI-CONSTRAINED, UNCEMENTED, POROUS, COATED, POLYMER/METAL/POLYMER1 recall19 reports
- ATTUNE 1512-16-080Depuy (Ireland) · PROSTHESIS, KNEE, PATELLO/FEMOROTIBIAL, SEMI-CONSTRAINED, UNCEMENTED, POROUS, COATED, POLYMER/METAL/POLYMER1 recall16 reports
Sources and updates
- Device record: FDA GUDID, file dated Oct 13, 2026 · View this device in AccessGUDID ↗
- Adverse event reports: FDA MAUDE, file dated Oct 14, 2026 · each report above links to its original FDA record
- Recalls: FDA Medical Device Recalls, file dated Oct 16, 2026
- Page last rebuilt: Oct 18, 2026. Data downloaded through openFDA, which notes it is not validated for clinical or regulatory use.
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