CD HORIZON® Spinal System 55840016550Recalls & reported problems
Medtronic Sofamor Danek, Inc. · SCREW 55840016550 5.5 CNMAS 6.5X50 CC · Class 2 · Implant
All models of CD HORIZON Spinal System (342)
Data updated Oct 18, 2026 from official FDA records · Editorial policy
- Adverse event reports
- 2
- Deaths reported
- 0
- Injuries reported
- 0
- Recalls naming it
- 0
Summary
The FDA's MAUDE database contains 2 adverse event reports that list this exact device (DI 00643169077294), received between Dec 22, 2017 and May 14, 2021 — classified as 2 malfunctions.
The most frequently reported specific device problem is “Break” (1 report).
1 other recall cover devices cleared under the same FDA submission (K113174); 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.
Most reported problems
Device problems
- Break1
- Failure to Align1
- Mechanical Jam1
Patient problems
- No Clinical Signs, Symptoms or Conditions1
- No Known Impact Or Consequence To Patient1
Recent adverse event reports
The 2 most recent of 2 reports, in the reporter's own words as published by the FDA.
MalfunctionMay 14, 2021Failure to Align; Mechanical Jam; Failure to Align; Mechanical Jam
INFORMATION WAS RECEIVED FROM A MANUFACTURER REPRESENTATIVE REGARDING A PATIENT WITH A PRE-OPERATIVE DIAGNOSIS OF METAL EXPLANT. IT WAS REPORTED THAT WHEN SURGEON TRIED TO EXPLANT THE SCREW, BUT IT WAS VERY DIFFICULT BECAUSE IT SEEMS "COLD WELDED", AND IT WAS NEARLY IMPOSSIBLE TO INSERT THE SCREW DRIVER INTO THE SCREW HEAD. PRODUCT IS EXPLANTED. THERE WERE NO PATIENT SYMPTOMS OR COMPLICATIONS AS A RESULT OF THIS EVENT. THE FRACTURE HAD HEALED AND WAS STABLE, THE PATIENT WANTED THE METAL TO BE TO REMOVED. THE SCREWHEAD WAS BLOCKED BY THE PLATE PARTIALLY AND STUCK. THERE WAS DELAY OF ABOUT 25 - 30 MIN IN OVERALL PROCEDURE TIME, ADDITIONAL TOOLS/ SCREWDRIVER WERE NEEDED TO REMOVE THE SCREW. THERE WERE NO FRAGMENTS LEFT INSIDE THE PATIENT.
Patient problems: No Clinical Signs, Symptoms or Conditions
MAUDE report 11824667 ↗MalfunctionDec 22, 2017Break; Break
IT WAS REPORTED THAT INTRA-OP, WHEN THE SURGEON WANTED TO GO DEEPER INTO THE PEDICLE WITH THE IMPLANT, THE SCREW HEAD OF THE IMPLANT CAME LOOSE FROM THE REST OF THE SCREW. THE PRODUCT CAME IN CONTACT WITH THE PATIENT. THE PRODUCT BROKE. NO FRAGMENT OF THE IMPLANT REMAINING IN THE PATIENT. NO PATIENT COMPLICATIONS WERE REPORTED.
Patient problems: No Known Impact Or Consequence To Patient
MAUDE report 7141539 ↗
Recalls under the same FDA submission
These recalls involve devices cleared under K113174. One submission often covers many models, so check the product and lot details in each record.
- Z-2603-2018 · Jul 9, 2018 · TerminatedMedtronic CD HORIZON Spinal System is intended to help provide immobilization and stabilization of spinal segments as an adjunct to fusion of the thoracic, lumbar, or sacral spine.
Other Pedicle screw spinal system, adolescent idiopathic scoliosis devices
- CD HORIZON® Spinal System 5540030Medtronic Sofamor Danek, Inc. · Pedicle screw spinal system, adolescent idiopathic scoliosis230 reports
- CD HORIZON® Spinal System 7578302Medtronic Sofamor Danek, Inc. · Pedicle screw spinal system, adolescent idiopathic scoliosis122 reports
- EXPEDIUM 179762480Medos International Sàrl · Pedicle screw spinal system, adolescent idiopathic scoliosis114 reports
- ReLine 13550000Nuvasive, Inc. · Pedicle screw spinal system, adolescent idiopathic scoliosis55 reports
- CD HORIZON® Spinal System 5440030Medtronic Sofamor Danek, Inc. · Pedicle screw spinal system, adolescent idiopathic scoliosis50 reports
- EXPEDIUM 179712640Medos International Sàrl · Pedicle screw spinal system, adolescent idiopathic scoliosis28 reports
- EXPEDIUM 179788635Medos International Sàrl · Pedicle screw spinal system, adolescent idiopathic scoliosis18 reports
- EXPEDIUM VIPER 196789300Depuy Spine, LLC · Pedicle screw spinal system, adolescent idiopathic scoliosis18 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