Reported Reactions

Devices › Prosthesis, ankle, semi-constrained, cemented, metal/polymer

Device brand name · Prosthesis ankle semi-constrained cemented metal/polymer

Inbone Total Ankle System: medical device reports filed with FDA

150 reports name it, 2018–2022. Manufacturer given most often on reports: Wright Medical Technology. Product code HSN.

150
device reports naming the brand
0% of all MAUDE reports · about 19 a year
0
reports, 12 months to August 2026
0 in the 12 months before
6.7%
classified as malfunction
3.4% across the product code
0%
classified as death, as reported
0 reports · not verified by FDA

FDA's MAUDE database holds 150 reports that name the brand "Inbone Total Ankle System" (prosthesis ankle semi-constrained cemented metal/polymer), received between September 2018 and December 2022; the manufacturer given most often on reports is Wright Medical Technology. Spellings of one product vary from report to report.

0 reports arrived in the 12 months to August 2026, and none 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 (93.3%) and malfunction (6.7%); across all prosthesis, ankle, semi-constrained, cemented, metal/polymer reports (product code HSN) death is recorded in 0% and malfunction in 3.4%. Event type is the reporter's classification of the report, not a verified outcome.

The device problems coded most often are migration (10%), insufficient device problem information (8.7%) and break (7.3%). The patient problems coded most often are injury, bone fracture(s) and failure of implant. 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

047Sep 2021: 1Oct 2021: 6Nov 2021: 3Dec 2021: 32022Jan 2022: 7Feb 2022: 5Mar 2022: 1Apr 2022: 1May 2022: 6Jun 2022: 3Jul 2022: 2Aug 2022: 5Sep 2022: 0Oct 2022: 1Nov 2022: 0Dec 2022: 22023Jan 2023: 0Feb 2023: 0Mar 2023: 0Apr 2023: 0May 2023: 0Jun 2023: 0Jul 2023: 0Aug 2023: 0Sep 2023: 0Oct 2023: 0Nov 2023: 0Dec 2023: 02024Jan 2024: 0Feb 2024: 0Mar 2024: 0Apr 2024: 0May 2024: 0Jun 2024: 0Jul 2024: 0Aug 2024: 0Sep 2024: 0Oct 2024: 0Nov 2024: 0Dec 2024: 02025Jan 2025: 0Feb 2025: 0Mar 2025: 0Apr 2025: 0May 2025: 0Jun 2025: 0Jul 2025: 0Aug 2025: 0Sep 2025: 0Oct 2025: 0Nov 2025: 0Dec 2025: 02026Jan 2026: 0Feb 2026: 0Mar 2026: 0Apr 2026: 0May 2026: 0Jun 2026: 0Jul 2026: 0Aug 2026: 0

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

022432018: 2220182019: 2620192020: 4320202021: 2620212022: 332022

Event type and report source

Event type, as classified on the report

Death0%0
Injury93.3%140
Malfunction6.7%10
Other0%0
Not given0%0

Who filed the report

Manufacturer report100%150
Voluntary report0%0
User facility report0%0
Distributor report0%0
Not given0%0

Grey bar: all 7,103 reports carrying product code HSN. Event type is the filer's classification and is not verified by FDA.

Device problems coded

Device problem (FDA code)ReportsShareShare across product code
Migrationthe device moved from where it was placed1510%7.9%
Insufficient device problem information138.7%21.6%
Breakthe device broke117.3%1.7%
Fracturea broken bone53.3%2.4%
Loosening of implant not related to bone-ingrowth42.7%1.4%
Loss of osseointegration42.7%4.9%
Mechanical problema mechanical problem32%0.1%
Component missing21.3%0.1%
Detachment of device or device componentpart of the device came off21.3%0.3%
Device-device incompatibility21.3%0.1%
Inaccurate information21.3%0.1%
Nonstandard device21.3%0%
Defective devicethe device was defective10.7%0.1%
Device misassembled during manufacturing /shipping10.7%0%
Loose or intermittent connection10.7%0.6%
Malposition of device10.7%1.1%
Material separation10.7%0%
Off-label use10.7%0.1%
Patient device interaction problem10.7%0.2%
Patient-device incompatibilitythe device did not suit the patient10.7%0.2%

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)ReportsShare
Injurya physical injury1912.7%
Bone fracture(s)106.7%
Failure of implant74.7%
Painpain, site not specified74.7%
Device embedded in tissue or plaque42.7%
Implant pain42.7%
Inadequate osseointegration42.7%
Loss of range of motion42.7%
Osteolysis42.7%
Cyst(s)32%
Deformity/ disfigurement32%
Subluxation32%
Arthritis21.3%
Ambulation or postural difficulties10.7%
Ankylosis10.7%

Patient problem codes are present mainly in reports filed since 2019 and are often blank.

In context

MeasureInbone Total Ankle SystemProduct code HSNAll MAUDE reports
Reports1507,10326,136,888
Share of that pool—2.1%0%
Classified as death, per 1,000 reports009
Classified as injury93.3%96.4%36.2%
Classified as malfunction6.7%3.4%62.3%
Filed by the manufacturer100%99.1%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 HSN

BrandReportsLatest 12 monthsClassified as death
Infinity Total Ankle System40100%
Unknown Talar component5281491.1%
Unknown Total Ankle System354880%
Unknown Tibial Component8322000%
Unknown Total Ankle Replacement1851610%
Star Total Ankle Replacement24200%
Unknown Star Talar Component21200%
Unknown Bearing317840.3%
Infinity193242.1%
Quantum183350.5%
Unknown Tibial Tray405250.2%
Unknown Depuy Tibial Insert72800%
Dow Corning29700.7%
Jgrknt 1 0mm Mini 3-0 Ndls21830%
UNK Attune Knee Patella239230.4%

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 Inbone Total Ankle System reports

How many FDA reports name Inbone Total Ankle System?

150 medical device reports in the openFDA MAUDE release of 28 Sep 2026, covering reports received through August 2026; 0 in the latest 12 months.

What kinds of events are reported?

injury (93.3%) and malfunction (6.7%). "Event type" is how the report was classified when filed: death, injury, malfunction or other.

What device problems are coded?

migration (10%), insufficient device problem information (8.7%), break (7.3%), fracture (3.3%) and loosening of implant not related to bone-ingrowth (2.7%). These are FDA's device problem codes as entered on the report.

Who files these reports?

manufacturer reports (100%). Manufacturers and user facilities are required to report; voluntary reports come from health professionals and the public.

Do these reports show that Inbone Total Ankle System 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.