Triathlon 5526-B-400Recalls & reported problems
Howmedica Osteonics Corp. · Primary Tibial Baseplate · Class 2 · Implant
All models of Triathlon (608)
Data updated Oct 18, 2026 from official FDA records · Editorial policy
- Adverse event reports
- 8
- Deaths reported
- 0
- Injuries reported
- 8
- Recalls naming it
- 0
Summary
The FDA's MAUDE database contains 8 adverse event reports that list this exact device (DI 07613327041354), received between Apr 9, 2018 and Feb 3, 2023 — classified as 8 injuries.
The most frequently reported specific device problem is “Malposition of Device” (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.
Most reported problems
Device problems
- Malposition of Device5
- Unstable3
- Insufficient Device Problem Information2
- Positioning Problem1
Patient problems
- Injury7
- Joint Laxity1
- Pain1
Recent adverse event reports
The 8 most recent of 8 reports, in the reporter's own words as published by the FDA.
InjuryFeb 3, 2023Malposition of Device; Malposition of Device
"KNEE REVISION DUE TO INSTABILITY" WAS REPORTED. UPDATE 12-JANUARY-2023: PER CLINICIAN REVIEW OF PROVIDED MEDICAL RECORDS, "OVER A 10 YEAR PERIOD THERE WAS SUBSTANTIAL POLYETHYLENE WEAR THAT LED TO REVISION SURGERY DEVICE OR PROCEDURE RELATED ADVERSE EVENT: POLYETHYLENE WEAR LEADING TO INSTABILITY AND REVISION SURGERY. THE TIBIAL COMPONENT WAS PLACED IN SIGNIFICANT VARUS AT THE TIME OF THE PRIMARY SURGERY."
Patient problems: Joint Laxity
MAUDE report 16292918 ↗InjuryFeb 10, 2020Unstable; Unstable
InjuryJun 20, 2019Unstable; Malposition of Device; Unstable; Malposition of Device
KNEE REVISION INSTABILITY DUE TO POLY WEAR. UPDATE 24 MAY 2019: CONCLUSION OF THE MEDICAL REVIEW DATED 20 MAY 2019 STATES: BASEPLATE MALPOSITION IN EXCESSIVE POSTERIOR TIBIAL SLOPE OF 12° WITH ADDITIONAL 8° VALGUS DEFORMITY HAVE CONTRIBUTED TO FLEXION INSTABILITY OF THE KNEE ARTHROPLASTY WITH CONSEQUENT POLYETHYLENE WEAR AND CLINICAL SYMPTOMS REQUIRING REVISION SURGERY.
Patient problems: Injury
MAUDE report 8716085 ↗InjuryNov 7, 2018Unstable; Unstable
INSTABILITY, POSTERIOR SAGGING AND WEAR OF PROSTHESIS APPROX. 5 YEARS AFTER IMPLANTATION.
Patient problems: Injury
MAUDE report 8046138 ↗InjurySep 13, 2018Malposition of Device; Positioning Problem; Malposition of Device; Positioning Problem
KNEE REVISION DUE TO INSTABILITY. UPDATE BASED ON MED REVIEW: BASEPLATE MALPOSITION IN EXCESSIVE POSTERIOR TIBIAL SLOPE HAS CAUSED FLEXION INSTABILITY OF THE KNEE WITH THE FEMORAL COMPONENT RIDING OVER THE POSTERIOR BORDER OF THE BASEPLATE WITH POLY BEARING CAUSING POLY WEAR AND METALLOSIS DUE TO METAL-METAL CONTACT BETWEEN FEMUR AND TIBIA REQUIRING REVISION AFTER 7-YEARS.
Patient problems: Injury
MAUDE report 7874091 ↗InjuryJul 2, 2018Insufficient Device Problem Information; Insufficient Device Problem Information
PATIENT HAD RIGHT KNEE SURGERY DONE ON (B)(6) 2013 AND WAS REVISED ON (B)(6) 2018 DUE TO LITTLE BONE GROWTH. PATIENT WAS REVISED TO NON STRYKER IMPLANTS.
Patient problems: Injury
MAUDE report 7654920 ↗InjuryMay 23, 2018Malposition of Device; Insufficient Device Problem Information; Malposition of Device; Insufficient Device Problem Information
PATIENT NEED KNEE REVISION THE REASON IS ¿INSTABILITY¿ IN THE KNEE.
Patient problems: Injury
MAUDE report 7537886 ↗InjuryApr 9, 2018Malposition of Device; Malposition of Device
PATIENT VISIT OUT CLINIC WITH PAIN AND INSTABILITY. UPDATE: BASED ON THE MEDICAL REVIEW THE FEMORAL COMPONENT MALPOSITION IN POSTERIOR POSITION PLUS EXCESSIVE DISTAL FEMORAL BONE RESECTION IN COMBINATION WITH BASEPLATE MALPOSITION IN EXCESSIVE POSTERIOR SLOPE OF 11° HAS CONTRIBUTED TO COMPLEX AND GLOBAL KNEE INSTABILITY WITH PAIN SYMPTOMS REQUIRING REVISION.
Patient problems: Injury; Pain
MAUDE report 7406184 ↗
Other PROSTHESIS, KNEE, PATELLOFEMOROTIBIAL, SEMI-CONSTRAINED, CEMENTED, POLYMER/METAL/POLYMER devices
- ATTUNE 1506-00-005Depuy (Ireland) · PROSTHESIS, KNEE, PATELLOFEMOROTIBIAL, SEMI-CONSTRAINED, CEMENTED, POLYMER/METAL/POLYMER589 reports
- ATTUNE 1506-00-004Depuy (Ireland) · PROSTHESIS, KNEE, PATELLOFEMOROTIBIAL, SEMI-CONSTRAINED, CEMENTED, POLYMER/METAL/POLYMER580 reports
- JOURNEY 74012812Smith & Nephew, Inc. · PROSTHESIS, KNEE, PATELLOFEMOROTIBIAL, SEMI-CONSTRAINED, CEMENTED, POLYMER/METAL/POLYMER502 reports
- JOURNEY 74011856Smith & Nephew, Inc. · PROSTHESIS, KNEE, PATELLOFEMOROTIBIAL, SEMI-CONSTRAINED, CEMENTED, POLYMER/METAL/POLYMER438 reports
- PERSONA™ 42-5099-094-00Zimmer, Inc. · PROSTHESIS, KNEE, PATELLOFEMOROTIBIAL, SEMI-CONSTRAINED, CEMENTED, POLYMER/METAL/POLYMER406 reports
- JOURNEY 74011857Smith & Nephew, Inc. · PROSTHESIS, KNEE, PATELLOFEMOROTIBIAL, SEMI-CONSTRAINED, CEMENTED, POLYMER/METAL/POLYMER388 reports
- ATTUNE 1506-00-007Depuy (Ireland) · PROSTHESIS, KNEE, PATELLOFEMOROTIBIAL, SEMI-CONSTRAINED, CEMENTED, POLYMER/METAL/POLYMER288 reports
- ATTUNE 1506-00-003Depuy (Ireland) · PROSTHESIS, KNEE, PATELLOFEMOROTIBIAL, SEMI-CONSTRAINED, CEMENTED, POLYMER/METAL/POLYMER271 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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