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Evolution EIS4S12LRecalls & reported problems

Microport Orthopedics Inc. · EVOLUTION® MP™ CS INSERT SIZE 4 STANDARD 12MM LEFT · Class 2 · Implant

All models of Evolution (125)

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

Adverse event reports
5
Deaths reported
0
Injuries reported
4
Recalls naming it
0

Summary

The FDA's MAUDE database contains 5 adverse event reports that list this exact device (DI M684EIS4S12L1), received between Dec 16, 2019 and Oct 26, 2023 — classified as 4 injuries, 1 malfunction.

The most frequently reported specific device problem is “Insufficient Device Problem Information” (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 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: 0 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

  • Insufficient Device Problem Information2
  • Unstable2
  • Adverse Event Without Identified Device or Use Problem1
  • Malposition of Device1
  • No Apparent Adverse Event1

Patient problems

  • Appropriate Clinical Signs, Symptoms and Conditions Term/Code Not Available1
  • Failure of Implant1
  • No Information1
  • Pain1
  • Unspecified Infection1

Recent adverse event reports

The 5 most recent of 5 reports, in the reporter's own words as published by the FDA.

  • InjuryOct 26, 2023Insufficient Device Problem Information; Insufficient Device Problem Information

    ALLEGEDLY, PATIENT UNDERWENT R TKR ON (B)(6) 2016 AND L TKR, DATE UNKNOWN, WITH BOTH PATELLAE PRESERVED. BOTH KNEES WERE REVISED ON (B)(6) 2023 DUE TO PATELLA PAIN. PATELLAE ADDED AND INSERTS WERE REPLACED EVEN THOUGH THE IN-SITU ONES WERE IN PRISTINE CONDITION. LEFT KNEE. SURGICAL SPECIALTIES REF (B)(4).

    Patient problems: Pain

    MAUDE report 18013499 ↗
  • InjuryOct 18, 2022Malposition of Device; Malposition of Device

    ALLEGEDLY, PATIENT WAS REVISED DUE TO MALALIGNMENT REVISION NJR NUMBER: (B)(4). SIDE: L. PRIMARY ASA: P3 - INCAPACITATING SYSTEMIC DISEASE. PRODUCT NO REVISED: PRODUCT ID: EFSRN3PL, LOT: 1785763, QTY: 1.

    Patient problems: Failure of Implant

    MAUDE report 15625963 ↗
  • InjurySep 16, 2021Unstable; Adverse Event Without Identified Device or Use Problem; No Apparent Adverse Event; Unstable; Adverse Event Without Identified Device or Use Problem; No Apparent Adverse Event

    ALLEGEDLY, COMPONENT EXCHANGED DUE TO LIGAMENT LOOSENING. THE COMPONENT EIS4S12L , LOT 1842498 WAS REVISED. REPLACEMENT OF INSERTS. (B)(4).

    Patient problems: Appropriate Clinical Signs, Symptoms and Conditions Term/Code Not Available

    MAUDE report 12482813 ↗
  • MalfunctionFeb 24, 2020Unstable; Unstable

    ALLEGEDLY, PATIENT WAS REVISED ON (B)(6) 2019 DUE TO INSTABILITY. SZ 4 12MM REPLACED WITH SZ 4 17MM INSERT. SURGEON ERROR RESULTING IN INSTABILITY. AUSTRALIA C842.

    Patient problems: No Information

    MAUDE report 9747012 ↗
  • InjuryDec 16, 2019Insufficient Device Problem Information; Insufficient Device Problem Information

    ALLEGEDLY , PATIENT WAS REVISED DUE TO INFECTION. WASHOUT AND POLY EXCHANGE. (B)(6).

    Patient problems: Unspecified Infection

    MAUDE report 9473420 ↗

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Sources and updates

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