GMK Sphere Total Knee System 02.12.0210FLRecalls & reported problems
Medacta International SA · Tibial Insert Fixed SPHERE Flex #2/10 mm L · Class 2 · Implant
All models of GMK Sphere Total Knee System (209)
Data updated Oct 18, 2026 from official FDA records · Editorial policy
Quick summary
This Medacta GMK Sphere total knee tibial insert is an implanted plastic bearing component used in knee replacement surgery. Reports describe infections, joint instability and pain, sometimes needing washout or revision surgery; one report describes the insert failing to couple with the tibial tray during surgery. There are 41 reports, no deaths, 40 injuries, and one malfunction. No recalls name this device.
AI-generated from the FDA records on this page and checked automatically against the numbers below. Read the details before relying on it.
- Adverse event reports
- 41
- Deaths reported
- 0
- Injuries reported
- 40
- Recalls naming it
- 0
Summary
The FDA's MAUDE database contains 41 adverse event reports that list this exact device (DI 07630030826139), received between Oct 12, 2017 and Apr 14, 2026 — classified as 40 injuries, 1 malfunction.
The most frequently reported specific device problem is “Device Appears to Trigger Rejection” (8 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
- Appropriate Device Problem Term/Code Not Available12
- Adverse Event Without Identified Device or Use Problem8
- Device Appears to Trigger Rejection8
- Unstable4
- Loose or Intermittent Connection3
- Device Slipped2
- Insufficient Device Problem Information2
- Loosening of Implant Not Related to Bone-Ingrowth2
Patient problems
- Unspecified Infection11
- Pain7
- Joint Laxity5
- Medical device site infection4
- Appropriate Clinical Signs, Symptoms and Conditions Term/Code Not Available2
- Joint Disorder2
- Loss of Range of Motion2
- No Code Available2
Recent adverse event reports
The 25 most recent of 41 reports, in the reporter's own words as published by the FDA.
InjuryApr 14, 2026Device Appears to Trigger Rejection
REVISION SURGERY DUE TO INFECTION AT 2 WEEKS FROM THE PRIMARY. THE INSET WAS REVISED.
Patient problems: Medical device site infection
MAUDE report 24871686 ↗MalfunctionJul 23, 2025Difficult to Insert; Difficult to Insert
FAILURE OF COUPLING OF THE 10 MM AND 11 MM INSERTS WITH THE TIBIAL TRAY. A 12[?]MM INSERT WAS FINALLY IMPLANTED. SURGERY WAS PROLONGED BY ABOUT 50 MINUTES. THE SURGERY CONCLUDED SUCCESSFULLY.
Patient problems: No Clinical Signs, Symptoms or Conditions
MAUDE report 22573888 ↗InjuryJul 8, 2025Device Appears to Trigger Rejection; Device Appears to Trigger Rejection
THE PATIENT CAME IN DUE TO SIGNS OF AN INFECTION AND THE PATHOGEN IS UNKNOWN. ABOUT 3 YEARS AND 10 MONTHS AFTER THE PRIMARY SURGERY, THE SURGEON PERFORMED A WASHOUT AND REVISED THE LINER. THE SURGERY WAS COMPLETED SUCCESSFULLY.
Patient problems: Medical device site infection
MAUDE report 22434261 ↗InjuryMay 28, 2024Device Appears to Trigger Rejection; Device Appears to Trigger Rejection
AT 10 MONTHS FROM THE PRIMARY, THE PATIENT CAME IN DUE TO SIGNS OF AN INFECTION AND THE PATHOGEN IS UNKNOWN. THE SURGEON PERFORMED A WASHOUT AND REVISED THE LINER. THE SURGERY WAS COMPLETED SUCCESSFULLY.
Patient problems: Unspecified Infection
MAUDE report 19403572 ↗InjuryApr 8, 2024Device Appears to Trigger Rejection; Device Appears to Trigger Rejection
AT ABOUT 1 YEAR AND 10 MONTHS AFTER PRIMARY, THE PATIENT CAME IN DUE TO SIGNS OF AN INFECTION AND THE PATHOGEN IS UNKNOWN. THE SURGEON REMOVED ALL COMPONENTS, PERFORMED A WASHOUT, AND REIMPLANTED PERMANENT HARDWARE. THE SURGERY WAS COMPLETED SUCCESSFULLY.
Patient problems: Unspecified Infection
MAUDE report 19059642 ↗InjuryApr 2, 2024Appropriate Device Problem Term/Code Not Available; Appropriate Device Problem Term/Code Not Available
AT 2 YEARS AND 9 MONTHS FROM THE PRIMARY, THE PATIENT CAME IN REPORTING INSTABILITY AND THE CAUSE IS UNKNOWN. THE SURGEON UPSIZED THE INSERT (FROM 10 MM TO 12 MM) THE SURGERY WAS COMPLETED SUCCESSFULLY.
Patient problems: Joint Laxity
MAUDE report 19018320 ↗InjuryFeb 28, 2024Device Appears to Trigger Rejection; Device Appears to Trigger Rejection
THE PATIENT CAME IN DUE TO SIGNS OF AN INFECTION AND THE PATHOGEN IS UNKNOWN. ABOUT 2 MONTHS AFTER THE PRIMARY SURGERY, THE SURGEON PERFORMED A WASHOUT AND REVISED THE LINER. THE SURGERY WAS COMPLETED SUCCESSFULLY.
Patient problems: Unspecified Infection
MAUDE report 18795921 ↗InjuryDec 21, 2023Adverse Event Without Identified Device or Use Problem; Adverse Event Without Identified Device or Use Problem
THE PATIENT HAD KNEE PAIN AND INSTABILITY AND THE CAUSE IS UNKNOWN. AT ABOUT 1 YEAR AND 3 MONTHS POST PRIMARY, THE SURGEON REVISED THE POLY (IMPLANTING A 2 MM THICKER LINER) AND SURGERY WAS COMPLETED SUCCESSFULLY.
Patient problems: Joint Laxity
MAUDE report 18370901 ↗InjuryDec 11, 2023Device Appears to Trigger Rejection; Device Appears to Trigger Rejection
REVISION SURGERY AT ABOUT 1 MONTH AND A HALF POST-PRIMARY DUE TO INFECTION AND THE PATHOGEN IS UNKNOWN. THE SURGEON PERFORMED A WASHOUT AND REVISED THE LINER. THE SURGERY WAS COMPLETED SUCCESSFULLY.
Patient problems: Unspecified Infection
MAUDE report 18301142 ↗InjuryJul 20, 2023Appropriate Device Problem Term/Code Not Available; Appropriate Device Problem Term/Code Not Available
AFTER ONE YEAR AND TWO MONTHS FROM THE PRIMARY, THE PATIENT CAME IN COMPLAINING OF PAIN DUE TO POOR PATELLA TRACKING AND LAXITY. THE SURGEON SWITCHED THE PATELLA IMPLANT AND UPSIZED THE TIBIAL LINER INSERTIN A 2MM THICKER LINER.
Patient problems: Appropriate Clinical Signs, Symptoms and Conditions Term/Code Not Available
MAUDE report 17360776 ↗InjuryJul 5, 2023Device Appears to Trigger Rejection; Device Appears to Trigger Rejection
AT ABOUT 6 MONTHS AFTER THE PRIMARY, THE PATIENT CAME IN DUE TO SIGNS OF AN INFECTION AND THE PATHOGEN IS UNKNOWN. THE SURGEON PERFORMED A WASHOUT AND REVISED THE LINER. THE SURGERY WAS COMPLETED SUCCESSFULLY.
Patient problems: Medical device site infection
MAUDE report 17254938 ↗InjuryMay 19, 2023Adverse Event Without Identified Device or Use Problem; Adverse Event Without Identified Device or Use Problem
AT ABOUT 10 MONTHS AFTER THE PRIMARY, THE PATIENT CAME IN REPORTING DISCOMFORT DUE TO A FLEXION CONTRACTURE AND THE CAUSE OF THE FLEXION CONTRACTURE IS UNKNOWN. THE SURGEON REVISED THE INSERT AND TIBIAL TRAY. THE SURGERY WAS COMPLETED SUCCESSFULLY.
Patient problems: Loss of Range of Motion
MAUDE report 16960187 ↗InjuryMar 29, 2023Adverse Event Without Identified Device or Use Problem; Adverse Event Without Identified Device or Use Problem
AT ABOUT 3 YEARS 8 MONTHS AFTER THE PRIMARY, THE PATIENT CAME IN REPORTING LIMITED RANGE OF MOTION AND THE CAUSE IS UNKNOWN. THE SURGEON REVISED THE TIBIAL TRAY AND INSERT. THE SURGERY WAS COMPLETED SUCCESSFULLY.
Patient problems: Loss of Range of Motion
MAUDE report 16635897 ↗InjuryJan 13, 2023Device Appears to Trigger Rejection; Device Appears to Trigger Rejection
THE PATIENT CAME IN DUE TO SIGNS OF AN INFECTION AND THE PATHOGEN IS UNKNOWN. ABOUT 1 MONTH AFTER THE PRIMARY SURGERY, THE SURGEON PERFORMED A WASHOUT AND REVISED THE POLY AND THE SURGERY WAS COMPLETED SUCCESSFULLY.
Patient problems: Medical device site infection
MAUDE report 16161989 ↗InjuryAug 26, 2022Adverse Event Without Identified Device or Use Problem; Adverse Event Without Identified Device or Use Problem
AT ABOUT 5 YEARS AND 10 MONTHS AFTER THE PRIMARY SURGERY, THE PATIENT CAME IN REPORTING INSTABILITY AND THE CAUSE IS UNKNOWN. THE SURGEON REVISED THE INSERT (10MM) WITH A THICKER ONE (14MM). THE SURGERY WAS COMPLETED SUCCESSFULLY.
Patient problems: Appropriate Clinical Signs, Symptoms and Conditions Term/Code Not Available
MAUDE report 15299795 ↗InjuryJul 20, 2022Appropriate Device Problem Term/Code Not Available
AT ABOUT 2 YEARS 3 MONTHS AFTER THE PRIMARY SURGERY, THE PATIENT HAS BEEN REVISED BECAUSE OF INSTABILITY. THE SURGERY WAS COMPLETED SUCCESSFULLY.
Patient problems: Insufficient Information
MAUDE report 15063297 ↗InjuryJul 7, 2022Appropriate Device Problem Term/Code Not Available
AT ABOUT 7 MONTHS AFTER THE PRIMARY SURGERY, THE PATIENT CAME IN DUE TO SIGNS OF AN INFECTION AND THE PATHOGEN IS UNKNOWN. THE SURGEON PERFORMED A WASHOUT AND REVISED THE POLY AND THE SURGERY WAS COMPLETED SUCCESSFULLY.
Patient problems: Unspecified Infection
MAUDE report 14942339 ↗InjuryJun 14, 2022Appropriate Device Problem Term/Code Not Available
THE PATIENT CAME IN REPORTING PAIN DUE TO A BONE TIBIAL PLATEAU FRACTURE AND THE CAUSE IS UNKNOWN. AFTER ALMOST 1 YEAR AND 6 MONTHS THE SURGEON REVISED THE FEMUR, TIBIA, AND INSERT. THE SURGERY WAS COMPLETED SUCCESSFULLY.
Patient problems: Bone Fracture(s)
MAUDE report 14684575 ↗InjuryMay 5, 2022Appropriate Device Problem Term/Code Not Available
AT ABOUT 3 YEARS AND 11 MONTHS AFTER THE PRIMARY SURGERY, THE PATIENT CAME IN REPORTING PAIN AND IT WAS REVEALED THAT THE PATIENT SUSTAINED AN MCL INJURY. THE SURGEON DECIDED TO REVISE THE POLY WITH A HIGHER ONE (17MM) AND THE SURGERY WAS COMPLETED SUCCESSFULLY.
Patient problems: Damage to Ligament(s); Pain
MAUDE report 14286872 ↗InjuryApr 11, 2022Appropriate Device Problem Term/Code Not Available
THE PATIENT CAME IN DUE TO SIGNS OF AN INFECTION AND THE PATHOGEN IS UNKNOWN. AT ABOUT 5 YEARS AND 1 MONTH POST PRIMARY THE SURGEON PERFORMED A WASHOUT AND REVISED THE POLY AND THE SURGERY WAS COMPLETED SUCCESSFULLY.
Patient problems: Unspecified Infection
MAUDE report 14072203 ↗InjuryFeb 18, 2022Unstable; Appropriate Device Problem Term/Code Not Available
AT 2 YEARS AFTER THE PRIMARY, THE PATIENT CAME IN REPORTING PAIN AND INSTABILITY AND THE CAUSE IS UNKNOWN. THE SURGEON REVISED THE POLY (10 MM TO 20 MM) AND SURGERY WAS COMPLETED SUCCESSFULLY.
Patient problems: Joint Laxity
MAUDE report 13558595 ↗InjuryDec 6, 2021Loosening of Implant Not Related to Bone-Ingrowth; Loosening of Implant Not Related to Bone-Ingrowth
AT 7 YEARS 5 MONTHS THE PATIENT CAME IN REPORTING PAIN DUE TO A LOOSE TIBIA. IT WAS ALSO OBSERVED THAT THE SCREW HAD BACKED OUT OF THE POLY. THE REASON FOR THE LOOSE TIBIA AND THE LOOSE SCREW IS UNKNOWN. THE SURGEON REVISED THE FEMUR, TIBIA, AND INSERT. THE SURGERY WAS COMPLETED SUCCESSFULLY.
Patient problems: Pain
MAUDE report 12932365 ↗InjuryNov 30, 2021Appropriate Device Problem Term/Code Not Available
AT 3 MONTHS AFTER THE PRIMARY SURGERY, THE PATIENT CAME IN DUE TO SIGNS OF AN INFECTION AND THE PATHOGEN IS UNKNOWN. THE SURGEON PERFORMED A WASHOUT AND REVISED THE POLY AND THE SURGERY WAS COMPLETED SUCCESSFULLY.
Patient problems: Unspecified Infection
MAUDE report 12890126 ↗InjuryNov 7, 2021Appropriate Device Problem Term/Code Not Available
THE PATIENT CAME IN DUE TO SIGNS OF AN INFECTION AND THE PATHOGEN IS UNKNOWN. ABOUT 2 WEEKS AFTER THE PRIMARY SURGERY, THE SURGEON PERFORMED A WASHOUT AND REVISED THE POLY AND THE SURGERY WAS COMPLETED SUCCESSFULLY.
Patient problems: Unspecified Infection
MAUDE report 12759589 ↗InjuryMay 25, 2021Insufficient Device Problem Information
REVISION SURGERY PERFORMED 2 YEARS AFTER THE PRIMARY DUE TO A HYPEREXTENDED KNEE. THE CAUSE OF THE HYPEREXTENDED KNEE IS UNKNOWN. THE SURGEON SUCCESSFULLY REVISED THE 10MM INSERT FOR A 17MM INSERT.
Patient problems: Joint Laxity
MAUDE report 11876981 ↗
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.
How reports and recalls are matched · Editorial policy · Report an error on this page