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GMK Sphere Total Knee SystemRecalls & reported problems across all models

Medacta International SA · 209 models in the FDA device registry

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

Adverse event reports
2,306
Deaths reported
0
Injuries reported
2,265
Recalls
0

We found 209 models of GMK Sphere Total Knee System by Medacta International SA in the FDA's device registry (GUDID). Together they are named in 2,306 adverse event reports in the FDA's MAUDE database, received between Jun 27, 2017 and Aug 13, 2026 — classified as 2,265 injuries, 41 malfunctions.

The most frequently reported specific device problem is “Device Appears to Trigger Rejection” (527 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. Widely used products collect more reports, so totals can't be used to compare products or estimate failure rates. Only reports that name a model's exact device identifier are counted. What reports can and can't tell you · How this data works

Reports received per month, all models

Nov 2023: 20 reportsDec 2023: 38 reportsJan 2024: 14 reportsFeb 2024: 12 reportsMar 2024: 22 reportsApr 2024: 25 reportsMay 2024: 29 reportsJun 2024: 38 reportsJul 2024: 15 reportsAug 2024: 21 reportsSep 2024: 18 reportsOct 2024: 42 reportsNov 2024: 28 reportsDec 2024: 24 reportsJan 2025: 17 reportsFeb 2025: 23 reportsMar 2025: 28 reportsApr 2025: 14 reportsMay 2025: 43 reportsJun 2025: 20 reportsJul 2025: 38 reportsAug 2025: 16 reportsSep 2025: 17 reportsOct 2025: 18 reportsNov 2025: 47 reportsDec 2025: 31 reportsJan 2026: 24 reportsFeb 2026: 21 reportsMar 2026: 29 reportsApr 2026: 27 reportsMay 2026: 44 reportsJun 2026: 18 reportsJul 2026: 18 reportsAug 2026: 9 reportsSep 2026: 0 reportsOct 2026: 0 reports20242025202647
Last 36 months. The most recent month may be incomplete.

Most reported GMK Sphere Total Knee System problems

Device problems

  • Adverse Event Without Identified Device or Use Problem685
  • Appropriate Device Problem Term/Code Not Available529
  • Device Appears to Trigger Rejection527
  • Unstable154
  • Loosening of Implant Not Related to Bone-Ingrowth125
  • Loose or Intermittent Connection84
  • Device Dislodged or Dislocated61
  • Insufficient Device Problem Information39

Patient problems

  • Unspecified Infection659
  • Joint Laxity568
  • Medical device site infection353
  • Pain179
  • Joint Disorder164
  • Loss of Range of Motion86
  • Implant Pain75
  • Insufficient Information48

GMK Sphere Total Knee System models

209 models, 100 per page, most reported first. Each model has its own page with its reports, recalls and device details.

Recent GMK Sphere Total Knee System adverse event reports

The 15 most recent reports across all models, in the reporter's own words as published by the FDA.

Other Medacta International SA products

All Medacta International SA devices →

Sources and updates

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