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LEGION 71420551Recalls & reported problems

Smith & Nephew, Inc. · LEGION CONSTRAINED ARTICULAR INSERT 9MM SIZE 7-8 · Class 2 · Implant

All models of LEGION (446)

Data updated Oct 16, 2026 from official FDA records · Editorial policy

Adverse event reports
7
Deaths reported
0
Injuries reported
7
Recalls naming it
0

Summary

The FDA's MAUDE database contains 7 adverse event reports that list this exact device (DI 03596010555830), received between Sep 10, 2019 and Jul 15, 2024 — classified as 7 injuries.

The most frequently reported specific device problem is “Device Dislodged or Dislocated” (3 reports).

2 other recalls cover devices cleared under the same FDA submission (K230653, K962137); 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 16, 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: 1 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: 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 Problem4
  • Device Dislodged or Dislocated3
  • Fitting Problem1
  • No Apparent Adverse Event1

Patient problems

  • Joint Laxity2
  • Unspecified Infection2
  • Arthralgia1
  • Failure of Implant1
  • Inflammation1
  • Injury1
  • Insufficient Information1
  • Nerve Damage1

Recent adverse event reports

The 7 most recent of 7 reports, in the reporter's own words as published by the FDA.

  • InjuryJul 15, 2024Device Dislodged or Dislocated; Device Dislodged or Dislocated

    IT WAS REPORTED THAT, AFTER UNDERGOING A TKA ON AN UNKNOWN DATE, PATIENT EXPERIENCED INSERT DETACHMENT FROM THE TIBIAL COMPONENT. IN ADDITION, THERE WAS LUXATION. THIS ADVERSE EVENT WAS ADDRESSED BY CONDUCTING REVISION SURGERY ON (B)(6) 2014, TO EXCHANGE THE LEGION CON ART INS 9MM SZ 7-8. PATIENT'S CURRENT HEALTH STATUS IS UNKNOWN.

    Patient problems: Failure of Implant; Joint Laxity; Nerve Damage; Rupture; Subluxation

    MAUDE report 19745297 ↗
  • InjuryApr 19, 2023Device Dislodged or Dislocated; No Apparent Adverse Event; Device Dislodged or Dislocated; No Apparent Adverse Event

    *US LEGAL CASE* IT WAS REPORTED THAT, AFTER A TKA SURGERY WAS PERFORMED ON THE (B)(6) 2020, THE PATIENT EXPERIENCED RECURRENT SWELLS AND PAIN WITH WEIGHTBEARING. A REVISION SURGERY WAS PERFORMED ON (B)(6) 2022 TO TREAT THIS ADVERSE EVENT, IN WHICH THE POLY INSERT WAS NOTICED TO BE DISASSOCIATED FROM THE TIBIAL BASE PLATE WITH CATASTROPHIC POLY WEAR AND OSTEOLYSIS UNDER THE IMPLANTS. ALL THE COMPONENTS WERE EXPLANTED AND REPLACED WITH COMPETITOR DEVICES. THE PATIENT WAS TAKEN TO THE RECOVERY ROOM AND RECEIVED THERAPY SESSIONS.

    Patient problems: Arthralgia; Inflammation; Osteolysis; Pain; Swelling/ Edema

    MAUDE report 16773429 ↗
  • InjuryAug 31, 2022Fitting Problem; Adverse Event Without Identified Device or Use Problem; Fitting Problem; Adverse Event Without Identified Device or Use Problem

    IT WAS REPORTED THAT AFTER A TKA HAD BEEN PERFORMED, PATIENT WAS ENTERED TO HAVE REVISION OF THE PATELLA FEMORAL BONE TO IMPLANT THE GII OVAL RESURFACING PAT 35MM. WHILE DOING THE REVISION, SURGEON DECIDED TO REPLACE THE TIBIAL COMPONENT, HOWEVER, HE SAID IT WAS BEST TO USE A CONSTRAINED PS INSERT INSTEAD OF THE PS HI FLEX THAT WAS CURRENTLY IN USE. THE INITIAL LEGION CON ART INS 9MM SZ 7-8 DID NOT FEEL AT ANY STAGE FULLY SEATED OR LOCKED. AS CONSEQUENCE OF THIS, SURGEON HAD TO USE THE GNS II CON INS SZ7-8 11MM TO FIT, LOCK AND SECURE AS EXPECTED. IT IS UNKNOWN IF SURGERY WAS DELAYED AND PATIENT'S CURRENT HEALTH STATUS.

    Patient problems: Insufficient Information

    MAUDE report 15330278 ↗
  • InjuryMay 16, 2022Adverse Event Without Identified Device or Use Problem; Adverse Event Without Identified Device or Use Problem

    IT WAS REPORTED THAT, AFTER A TKA WAS PERFORMED ON AN UNSPECIFIED DATE, THE PATIENT EXPERIENCED INSTABILITY. THIS ADVERSE EVENT WAS SOLVED BY A REVISION SURGERY ON AN (B)(6) 2022. CURRENT HEALTH STATUS OF PATIENT IS UNKNOWN.

    Patient problems: Joint Laxity

    MAUDE report 14407147 ↗
  • InjuryMay 5, 2022Adverse Event Without Identified Device or Use Problem; Adverse Event Without Identified Device or Use Problem

    IT WAS REPORTED THAT, AFTER A TKA SURGERY HAD BEEN PERFORMED, A REMOVAL OF LEGION CON ART INS 9MM SZ 7-8 HAD TO BE DONE FOR AN INFECTED KNEE. THE ADVERSE EVENT WAS ADDRESSED WITH A REVISION SURGERY ON (B)(6) 2022 TO REPLACE THE INSERT. THE CONDITION OF THE PATIENT IS UNKNOWN.

    Patient problems: Unspecified Infection

    MAUDE report 14290665 ↗
  • InjuryApr 27, 2020Adverse Event Without Identified Device or Use Problem; Adverse Event Without Identified Device or Use Problem

    IT WAS REPORTED THAT A REVISION SURGERY HAD TO BE PERFORMED DUE TO PROSTHETIC INFECTION. THE LEGION CON ART INS 9MM SZ 7-8 WAS IMPLANTED ON (B)(6) 2017 AND EXPLANTED THE SAME YEAR ON (B)(6) 2017.

    Patient problems: Unspecified Infection

    MAUDE report 10003255 ↗
  • InjurySep 10, 2019Device Dislodged or Dislocated; Device Dislodged or Dislocated

    IT WAS REPORTED THAT A REVISION SURGERY WAS PERFORMED DUE TO A LUXATION OF THE PROXIMAL TIBIA DUE TO POST TRAUMATIC EVENTS.

    Patient problems: Injury

    MAUDE report 8981132 ↗

Recalls under the same FDA submission

These recalls involve devices cleared under K230653, K962137. 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-0118-2021 · Sep 21, 2020 · Terminated
    Genesis (GII) - Product Usage: designed for use in patients in primary and revision surgery, where the posterior cruciate ligament and one or both of the collateral ligaments (i.e.

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

How reports and recalls are matched · Editorial policy · Report an error on this page