Devices › Prosthesis, intervertebral disc
Device brand name · Artificial cervical disc
M6-C: medical device reports filed with FDA
452 reports name it, 2019–2026. Manufacturer given most often on reports: Spinal Kinetics. Product code MJO.
- 452
- device reports naming the brand
- 0% of all MAUDE reports · about 62 a year
- 31
- reports, 12 months to August 2026
- 17 in the 12 months before
- 6.6%
- classified as malfunction
- 17.2% across the product code
- 0%
- classified as death, as reported
- 0 reports · not verified by FDA
452 medical device reports received by FDA name the brand "M6-C" (artificial cervical disc); the manufacturer given most often on reports is Spinal Kinetics; received from March 2019 to August 2026. Brand names are as the reporter or manufacturer wrote them, so one product can appear under several spellings.
31 reports arrived in the 12 months to August 2026, up 82% from 17 in the 12 months before. FDA releases MAUDE data monthly; reports can arrive months after an event, so the newest months grow in later releases. The event types recorded are injury (93.4%) and malfunction (6.6%); across all prosthesis, intervertebral disc reports (product code MJO) death is recorded in 0.2% and malfunction in 17.2%. Event type is the reporter's classification of the report, not a verified outcome.
The device problems coded most often are insufficient device problem information (52.7%), patient-device incompatibility (39.4%) and patient device interaction problem (13.9%). The patient problems coded most often are osteolysis, neck pain and pain. FDA states that "MDR data alone cannot be used to establish rates of events, evaluate a change in event rates over time or compare event rates between devices. The number of reports cannot be interpreted or used in isolation to reach conclusions about the existence, severity, or frequency of problems associated with devices." It adds that the reporting system "has limitations, including the potential submission of incomplete, inaccurate, untimely, unverified, or biased data."
Reports by month, five years
Reports by the month FDA received them. FDA releases MAUDE data monthly; reports can arrive months after an event, so the newest months grow in later releases.
By year received
Event type and report source
Event type, as classified on the report
Who filed the report
Grey bar: all 6,183 reports carrying product code MJO. Event type is the filer's classification and is not verified by FDA.
Device problems coded
| Device problem (FDA code) | Reports | Share | Share across product code |
|---|---|---|---|
| Insufficient device problem information | 238 | 52.7% | 14.2% |
| Patient-device incompatibilitythe device did not suit the patient | 178 | 39.4% | 4.1% |
| Patient device interaction problem | 63 | 13.9% | 2.6% |
| Collapse | 59 | 13.1% | 1.6% |
| Loosening of implant not related to bone-ingrowth | 11 | 2.4% | 0.7% |
| Migrationthe device moved from where it was placed | 6 | 1.3% | 6.4% |
| Fracturea broken bone | 5 | 1.1% | 1.5% |
| Loss of osseointegration | 5 | 1.1% | 0.1% |
| Off-label use | 3 | 0.7% | 0.2% |
| Failure to osseointegrate | 2 | 0.4% | 0.1% |
| Improper or incorrect procedure or method | 2 | 0.4% | 1.1% |
| Malposition of device | 2 | 0.4% | 3.3% |
| Material disintegration | 2 | 0.4% | 0% |
| Material integrity problema problem with the device material | 2 | 0.4% | 0.1% |
| Material separation | 2 | 0.4% | 0.9% |
| Mechanical problema mechanical problem | 2 | 0.4% | 1.2% |
| Osseointegration problem | 2 | 0.4% | 1.1% |
| Structural problem | 2 | 0.4% | 0% |
| Breakthe device broke | 1 | 0.2% | 2.7% |
| Compatibility problem | 1 | 0.2% | 0.1% |
FDA's device problem codes as entered on the report; one report can carry several. Generic codes such as "no apparent adverse event" are left out.
Patient problems coded
| Patient problem (FDA code) | Reports | Share |
|---|---|---|
| Osteolysis | 119 | 26.3% |
| Neck painneck pain | 84 | 18.6% |
| Painpain, site not specified | 62 | 13.7% |
| Dysphagia/ odynophagia | 14 | 3.1% |
| Failure of implant | 14 | 3.1% |
| Inflammationinflammation | 9 | 2% |
| Abscessa collection of pus | 8 | 1.8% |
| Falla fall | 8 | 1.8% |
| Numbnessnumbness | 8 | 1.8% |
| Implant pain | 6 | 1.3% |
| Inadequate pain relief | 5 | 1.1% |
| Appropriate clinical signs, symptoms and conditions term/code not available | 4 | 0.9% |
| Discomfortdiscomfort | 4 | 0.9% |
| Muscle weakness/atrophy | 4 | 0.9% |
| Dysphasia | 3 | 0.7% |
Patient problem codes are present mainly in reports filed since 2019 and are often blank.
In context
| Measure | M6-C | Product code MJO | All MAUDE reports |
|---|---|---|---|
| Reports | 452 | 6,183 | 26,136,888 |
| Share of that pool | — | 7.3% | 0% |
| Classified as death, per 1,000 reports | 0 | 2 | 9 |
| Classified as injury | 93.4% | 82.2% | 36.2% |
| Classified as malfunction | 6.6% | 17.2% | 62.3% |
| Filed by the manufacturer | 99.8% | 95.7% | 94.9% |
Shares are of reports, not of devices in use. FDA states that "MDR data alone cannot be used to establish rates of events, evaluate a change in event rates over time or compare event rates between devices. The number of reports cannot be interpreted or used in isolation to reach conclusions about the existence, severity, or frequency of problems associated with devices." It adds that the reporting system "has limitations, including the potential submission of incomplete, inaccurate, untimely, unverified, or biased data."
Other brands with product code MJO
| Brand | Reports | Latest 12 months | Classified as death |
|---|---|---|---|
| PRESTIGE Cervical Disc System | 275 | 20 | 0.4% |
| Bryan Cervical Disc System | 261 | 0 | 0.4% |
| Charite Artificial Disc Size Unknown | 161 | 0 | 1.2% |
| Collect No Qas Spine Anterior Stabilis | 269 | 0 | 0% |
Ordered by report count for navigation only. FDA states that "MDR data alone cannot be used to establish rates of events, evaluate a change in event rates over time or compare event rates between devices. The number of reports cannot be interpreted or used in isolation to reach conclusions about the existence, severity, or frequency of problems associated with devices." It adds that the reporting system "has limitations, including the potential submission of incomplete, inaccurate, untimely, unverified, or biased data." FDA also states that "common products may have a higher number of adverse events due to the higher total number of people using the product."
Questions about M6-C reports
How many FDA reports name M6-C?
452 medical device reports in the openFDA MAUDE release of 28 Sep 2026, covering reports received through August 2026; 31 in the latest 12 months.
What kinds of events are reported?
injury (93.4%) and malfunction (6.6%). "Event type" is how the report was classified when filed: death, injury, malfunction or other.
What device problems are coded?
insufficient device problem information (52.7%), patient-device incompatibility (39.4%), patient device interaction problem (13.9%), collapse (13.1%) and loosening of implant not related to bone-ingrowth (2.4%). These are FDA's device problem codes as entered on the report.
Who files these reports?
manufacturer reports (99.8%) and voluntary reports (0.2%). Manufacturers and user facilities are required to report; voluntary reports come from health professionals and the public.
Do these reports show that M6-C was at fault?
No. FDA states that "MDR data alone cannot be used to establish rates of events, evaluate a change in event rates over time or compare event rates between devices. The number of reports cannot be interpreted or used in isolation to reach conclusions about the existence, severity, or frequency of problems associated with devices." It adds that the reporting system "has limitations, including the potential submission of incomplete, inaccurate, untimely, unverified, or biased data." FDA adds that "a causal relationship cannot be established between product and reactions listed in a report."
How do I report a problem with a medical device?
Through FDA MedWatch (Form FDA 3500 for health professionals and consumers), or to the manufacturer. See the guide on how to report.
Where this comes from. Counts are built from the openFDA Device Adverse Event (MAUDE) bulk export released 28 Sep 2026, which holds reports FDA received through 31 Aug 2026. Brand, generic and manufacturer names are as written on the reports; product code names come from FDA's device classification. A report counts here when any device it lists carries this brand name after punctuation and capitalisation are normalised. No report narrative, lot number, patient detail or reporter identity is published. See the methodology and sources; FDA's record is authoritative, and corrections are handled within five working days.
Drug data (FAERS) through 30 Jun 2026; device data (MAUDE) through 31 Aug 2026. Not medical advice.