Triathlon 5537-G-211Recalls & reported problems
Howmedica Osteonics Corp. · Total Stabilizer+ Tibial Insert · Class 2 · Implant
All models of Triathlon (608)
Data updated Oct 18, 2026 from official FDA records · Editorial policy
- Adverse event reports
- 3
- Deaths reported
- 0
- Injuries reported
- 3
- Recalls naming it
- 0
Summary
The FDA's MAUDE database contains 3 adverse event reports that list this exact device (DI 07613327027044), received between Jan 31, 2022 and Apr 7, 2025 — classified as 3 injuries.
The most frequently reported specific device problem is “Mechanical Problem” (2 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
- Adverse Event Without Identified Device or Use Problem3
- Mechanical Problem2
Patient problems
- Loss of Range of Motion2
- Fibrosis1
- Scar Tissue1
- Swelling/ Edema1
- Unspecified Infection1
Recent adverse event reports
The 3 most recent of 3 reports, in the reporter's own words as published by the FDA.
InjuryApr 7, 2025Mechanical Problem; Adverse Event Without Identified Device or Use Problem; Mechanical Problem; Adverse Event Without Identified Device or Use Problem
THIS IS FOR MUA ON (B)(6) 2016. LEFT KNEE. THIS IS A SUBJECT WHO IS ENTERED IN THE 76 - CONES REVISION STUDY WHO DURING THEIR 7-YEAR PHONE FOLLOW UP INDICATED THAT THEY ARE NOT SATISFIED WITH THEIR IMPLANTS; STATES 'NO PAIN, JUST DISCOMFORT, SWOLLEN, STIFF; SHE STATED SHE WAS UNABLE TO BEND IT OVER 90°'; SHE STATED SHE BEEN TRYING TO SOME YOGA AND STRETCHING EXERCISES FOR HER KNEE AND NOTHING GETTING BETTER FOR HER.' REFUSES CLINIC VISIT. (PRIOR HISTORY OF MUA (B)(6) 2016 FOLLOWING STUDY SURGERY ON (B)(6) 2016 FOR ARTHROFIBROSIS. CONCERN FOR MIDSHAFT TIBIAL FRACTURE (B)(6) 2021). STUDY SITE HAS PROVIDED ALL INFORMATION AVAILABLE.
Patient problems: Loss of Range of Motion
MAUDE report 21792679 ↗InjuryApr 3, 2025Mechanical Problem; Adverse Event Without Identified Device or Use Problem; Mechanical Problem; Adverse Event Without Identified Device or Use Problem
THIS PI IS FOR THE RESULTS OF THE 7-YEAR PHONE FOLLOW-UP. LEFT KNEE. THIS IS A SUBJECT WHO IS ENTERED IN THE 76 - CONES REVISION STUDY WHO DURING THEIR 7-YEAR PHONE FOLLOW UP INDICATED THAT THEY ARE NOT SATISFIED WITH THEIR IMPLANTS; STATES 'NO PAIN, JUST DISCOMFORT, SWOLLEN, STIFF; SHE STATED SHE WAS UNABLE TO BEND IT OVER 90°'; SHE STATED SHE BEEN TRYING TO SOME YOGA AND STRETCHING EXERCISES FOR HER KNEE AND NOTHING GETTING BETTER FOR HER.' REFUSES CLINIC VISIT. (PRIOR HISTORY OF MUA (B)(6) 2016 FOLLOWING STUDY SURGERY ON (B)(6) 2016 FOR ARTHROFIBROSIS. CONCERN FOR MIDSHAFT TIBIAL FRACTURE (B)(6) 2021). STUDY SITE HAS PROVIDED ALL INFORMATION AVAILABLE.
Patient problems: Fibrosis; Loss of Range of Motion; Scar Tissue; Swelling/ Edema
MAUDE report 21761677 ↗InjuryJan 31, 2022Adverse 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. THE SURGEON'S ORIGINAL PLAN WAS TO PERFORM A POLY SWAP, BUT DECIDED INTRA-OPERATIVELY TO PERFORM A STAGE 1 REVISION AND REMOVED ALL IMPLANTS.
Patient problems: Unspecified Infection
MAUDE report 13392147 ↗
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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