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LEGION 71425004Recalls & reported problems

Smith & Nephew, Inc. · LEGION COBALT CHROME CONSTRAINED FEMORAL SIZE 4 LEFT · Class 2 · Implant

All models of LEGION (446)

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

Adverse event reports
2
Deaths reported
0
Injuries reported
2
Recalls naming it
0

Summary

The FDA's MAUDE database contains 2 adverse event reports that list this exact device (DI 03596010580320), received between Jan 20, 2023 and Oct 24, 2024 — classified as 2 injuries.

The most frequently reported specific device problem is “Loosening of Implant Not Related to Bone-Ingrowth” (1 report).

4 other recalls cover devices cleared under the same FDA submission (K060742, K230653); they may or may not involve this specific model.

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: 1 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 reports2024202520261
Last 36 months. The most recent month may be incomplete.

Most reported problems

Device problems

  • Adverse Event Without Identified Device or Use Problem2
  • Loosening of Implant Not Related to Bone-Ingrowth1

Patient problems

  • Bone Fracture(s)1
  • Inadequate Osseointegration1

Recent adverse event reports

The 2 most recent of 2 reports, in the reporter's own words as published by the FDA.

  • InjuryOct 24, 2024Adverse Event Without Identified Device or Use Problem; Adverse Event Without Identified Device or Use Problem

    IT WAS REPORTED THAT PATIENT UNDERWENT A TKA LEFT REVISION SURGERY IN 2010 DUE TO BEARING WEAR AND OSTEOLYSIS. DURING THE REVISION SURGERY, LEGION/GII SMITH & NEPHEW COMPONENT(S) WERE IMPLANTED. ON (B)(6) 2011, THE PATIENT SUSTAINED A FRACTURE. IT IS UNKNOWN WHAT ACTIONS WERE TAKEN TO ADDRESS THIS ISSUE. THIS INFORMATION WAS COLLECTED RETROSPECTIVELY AS PART OF A POST-MARKET CLINICAL FOLLOW UP ACTIVITY AND IS PROVIDED IN AN ANONYMIZED FORMAT; THEREFORE, NO FURTHER INFORMATION AVAILABLE.

    Patient problems: Bone Fracture(s)

    MAUDE report 20524067 ↗
  • InjuryJan 20, 2023Adverse Event Without Identified Device or Use Problem; Loosening of Implant Not Related to Bone-Ingrowth; Adverse Event Without Identified Device or Use Problem; Loosening of Implant Not Related to Bone-Ingrowth

    IT WAS REPORTED THAT, THE PATIENT UNDERWENT A LEFT TKA TWO-STAGE REVISION DUE TO AN UNKNOWN DIAGNOSIS. APPROXIMATELY EIGHTY FOUR (84) MONTHS AFTER THIS PROCEDURE, THE PATIENT EXPERIENCED ASEPTIC LOOSENING OF THE REVISED KNEE PROSTHESIS AND REQUIRED A SECOND REVISION. THE DATES IN WHICH THE INDEX SURGERY, FIRST TWO-STAGE REVISION AND SECOND REVISION TOOK PLACE ARE NOT KNOWN. IT IS ALSO UNKNOWN WHICH DEVICES WERE EXPLANTED AND/OR EXCHANGED DURING THE SECOND REVISION. THIS INCIDENT WAS IDENTIFIED IN A RETROSPECTIVE POST-MARKET CLINICAL FOLLOW UP ACTIVITY (PMCF) WHERE ANONYMIZED DATA SUMMARIZING TKA REVISION OUTCOMES WERE GATHERED; THEREFORE, ADDITIONAL INFORMATION IS NOT KNOWN.

    Patient problems: Inadequate Osseointegration

    MAUDE report 16216361 ↗

Recalls under the same FDA submission

These recalls involve devices cleared under K060742, K230653. One submission often covers many models, so check the product and lot details in each record.

  • Z-2621-2023 · Aug 31, 2023 · Open, Classified
    smith&nephew LEGION OXINUM POSTERIOR STABILIZED NONPOROUS FERMOAL COMPONENT, SIZE 5N, LEFT, NARROW, REF 71421265; knee joint
  • Z-0589-2015 · Nov 4, 2014 · Terminated
    LEGION(TM) COCR CONSTRAINED FEMORAL COMPONENT, SIZE 4, LEFT, REF 71425004, QTY 1, Smith & Nephew, knee prosthesis Usage:orthopedic.
  • Z-0590-2015 · Nov 4, 2014 · Terminated
    LEGION(TM) COCR CONSTRAINED FEMORAL COMPONENT, SIZE 5, RIGHT, REF 71426005, QTY 1, Smith & Nephew, knee prosthesis Usage:orthopedic.
  • Z-0591-2015 · Nov 4, 2014 · Terminated
    LEGION(TM) COCR CONSTRAINED FEMORAL COMPONENT, SIZE 6, LEFT, REF 71426006, QTY 1, Smith & Nephew, knee prosthesis Usage:orthopedic.

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

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

Sources and updates

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