CD HORIZON® Spinal System 55840006535Recalls & reported problems
Medtronic Sofamor Danek, Inc. · SCREW 55840006535 5.5/6 MAS 6.5X35 · Class 2 · Implant
- 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 00613994971739), received between Sep 8, 2017 and May 31, 2025 — classified as 4 injuries, 1 malfunction.
The most frequently reported specific device problem is “Break” (3 reports).
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. How this data works · Data updated Oct 13, 2026.
Reports received per month
Most reported problems
Device problems
- Break3
- Fracture1
- Mechanical Jam1
Patient problems
- No Clinical Signs, Symptoms or Conditions2
- Device Embedded In Tissue or Plaque1
- Discomfort1
- No Known Impact Or Consequence To Patient1
Recent adverse event reports
The 5 most recent of 5 reports, in the reporter's own words as published by the FDA.
InjuryMay 31, 2025Break; Break
ADDITIONAL INFORMATION WAS RECEIVED VIA MANUFACTURER REPRESENTATIVE THAT ALL THE DEVICES THAT WERE IMPLANTED IN INITIAL SURGERY WERE EXPLANTED BUT ONLY TWO SCREWS THAT WERE ON UPPER LEVEL WERE BROKEN.
Patient problems: Device Embedded In Tissue or Plaque
MAUDE report 22120435 ↗MalfunctionOct 31, 2023Mechanical Jam; Mechanical Jam
INFORMATION WAS RECEIVED FROM HEALTHCARE PROVIDER (HCP) VIA A MANUFACTURER REPRESENTATIVE REGARDING A PATIENT HAVING SACROILIAC AND THORACOLUMBAR (LOWER/MID SPINE) SPINAL THERAPY. IT WAS REPORTED THAT THE DRIVER SNAPPED IN TWO WHILE IMPLANTING SCREW BY HAND, SCREWS SEIZED UP WHEN THE DRIVER BROKE IN IT AND DRIVER SEIZED UP AND WILL NOT RATCHET IN EITHER DIRECTION. THERE WERE NO PATIENT SYMPTOMS REPORTED. THERE WERE NO FURTHER COMPLICATIONS REPORTED REGARDING THE EVENT.
Patient problems: No Clinical Signs, Symptoms or Conditions
MAUDE report 18036492 ↗InjuryJan 16, 2023Fracture; Fracture
INFORMATION WAS RECEIVED FROM HEALTHCARE PROVIDER (HCP) VIA A MANUFACTURER REPRESENTATIVE REGARDING A PATIENT HAVING POSTERIOR SPINAL FUSION FOR PSEUDARTHROSIS, SCOLIOSIS AND ROD FAILURE. IT WAS REPORTED THAT THE SOLERA MAS SHANK FRACTURED. THE PRODUCT EXPLANTED AND WILL BE RE TURNED. THERE WERE NO FRAGMENTS OF THE IMPLANTS OR INSTRUMENTS REMAINED IN THE PATIENT'S BODY. THERE WERE NO PATIENT SYMPTOMS OR COMPLICATIONS REPORTED AS A RESULT OF THIS EVENT.
Patient problems: No Clinical Signs, Symptoms or Conditions
MAUDE report 16173087 ↗InjuryApr 20, 2018Break; Break
IT WAS REPORTED THAT THE PATIENT UNDERWENT AN UNSPECIFIED SURGERY DUE TO SPONDYLOLISTHESIS AT L5-S1. POST-OP, THE HEAD OF THE LEFT SIDED SCREW WAS FOUND BROKEN. HENCE, THE SCREW THAT WAS IMPLANTED IN (B)(6) 2017 HAD TO BE EXPLANTED IN A REVISION SURGERY IN (B)(6) 2018.
Patient problems: Discomfort
MAUDE report 7446020 ↗InjurySep 8, 2017Break; Break
TYPE OF PROCEDURE USED: POSTERIOR LUMBAR SPINAL FUSION LEVELS IMPLANTED: L4 THROUGH S1 IT WAS REPORTED THAT PATIENT UNDERWENT A FOLLOW UP SURGERY ON (B)(6) 2017 TO REVISE CONSTRUCT PLACED ON (B)(6) 2016. REPORTEDLY, ON AN UNKNOWN DATE, POST-OP, SCREW PLACED ON (B)(6) 2017 BROKE AND A REVISION SURGERY WILL BE PERFORMED AT A LATER DATE. THE PRODUCT CAME IN CONTACT WITH THE PATIENT AND BROKE. NO FRAGMENT OF THE IMPLANT REMAINED IN THE PATIENT. PATIENT SYMPTOMS OR COMPLICATIONS WERE REPORTED UNKNOWN AS A RESULT OF THIS EVENT.
Patient problems: No Known Impact Or Consequence To Patient
MAUDE report 6851079 ↗
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 Orthosis, spondylolisthesis spinal fixation devices
- CD HORIZON® Spinal System 7540020Medtronic Sofamor Danek, Inc. · Orthosis, spondylolisthesis spinal fixation257 reports
- MANTIS Redux 48289999Stryker Corporation · Orthosis, spondylolisthesis spinal fixation76 reports
- EXPEDIUM TOP NOTCH 179771555Depuy Spine, LLC · Orthosis, spondylolisthesis spinal fixation41 reports
- EXPEDIUM 179712650Medos International Sàrl · Orthosis, spondylolisthesis spinal fixation31 reports
- EXPEDIUM VERSE 199721530Medos International Sàrl · Orthosis, spondylolisthesis spinal fixation29 reports
- XIA 4 5 48130000Stryker Corporation · Orthosis, spondylolisthesis spinal fixation29 reports
- XIA 4.5 System - XIA CT 48850000Stryker Corporation · Orthosis, spondylolisthesis spinal fixation27 reports
- CD HORIZON® Spinal System 7576545Medtronic Sofamor Danek, Inc. · Orthosis, spondylolisthesis spinal fixation26 reports
Sources: FDA GUDID, MAUDE and Medical Device Recalls via openFDA. openFDA data is not validated for clinical or regulatory use.