Reported Reactions

Devices › Reamer

Device brand name · Orthopedic manual surgical instrument

UNK Handle: medical device reports filed with FDA

227 reports name it, 2019–2026. Manufacturer given most often on reports: Depuy Orthopaedics US. Product code HTO.

227
device reports naming the brand
0% of all MAUDE reports · about 33 a year
50
reports, 12 months to August 2026
26 in the 12 months before
99.6%
classified as malfunction
95.7% across the product code
0%
classified as death, as reported
0 reports · not verified by FDA

227 medical device reports received by FDA name the brand "UNK Handle" (orthopedic manual surgical instrument); the manufacturer given most often on reports is Depuy Orthopaedics US; received from September 2019 to August 2026. Brand names are as the reporter or manufacturer wrote them, so one product can appear under several spellings.

50 reports arrived in the 12 months to August 2026, up 92% from 26 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 malfunction (99.6%) and injury (0.4%); across all reamer reports (product code HTO) death is recorded in 0% and malfunction in 95.7%. Event type is the reporter's classification of the report, not a verified outcome.

The device problems coded most often are device-device incompatibility (52%), break (36.1%) and naturally worn (5.7%). The patient problems coded most often are not applicable and bone notching. 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

048Sep 2021: 4Oct 2021: 1Nov 2021: 1Dec 2021: 42022Jan 2022: 7Feb 2022: 3Mar 2022: 1Apr 2022: 1May 2022: 1Jun 2022: 3Jul 2022: 2Aug 2022: 5Sep 2022: 3Oct 2022: 6Nov 2022: 4Dec 2022: 22023Jan 2023: 6Feb 2023: 4Mar 2023: 3Apr 2023: 4May 2023: 2Jun 2023: 4Jul 2023: 1Aug 2023: 3Sep 2023: 4Oct 2023: 3Nov 2023: 7Dec 2023: 32024Jan 2024: 2Feb 2024: 1Mar 2024: 6Apr 2024: 2May 2024: 3Jun 2024: 3Jul 2024: 1Aug 2024: 6Sep 2024: 2Oct 2024: 1Nov 2024: 0Dec 2024: 32025Jan 2025: 4Feb 2025: 6Mar 2025: 2Apr 2025: 4May 2025: 1Jun 2025: 1Jul 2025: 2Aug 2025: 0Sep 2025: 3Oct 2025: 3Nov 2025: 5Dec 2025: 32026Jan 2026: 1Feb 2026: 4Mar 2026: 2Apr 2026: 8May 2026: 3Jun 2026: 4Jul 2026: 6Aug 2026: 8

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

022442019: 420192020: 1320202021: 2820212022: 3820222023: 4420232024: 3020242025: 3420252026: 362026

Event type and report source

Event type, as classified on the report

Death0%0
Injury0.4%1
Malfunction99.6%226
Other0%0
Not given0%0

Who filed the report

Manufacturer report100%227
Voluntary report0%0
User facility report0%0
Distributor report0%0
Not given0%0

Grey bar: all 29,443 reports carrying product code HTO. Event type is the filer's classification and is not verified by FDA.

Device problems coded

Device problem (FDA code)ReportsShareShare across product code
Device-device incompatibility11852%3.2%
Breakthe device broke8236.1%13.6%
Naturally worn135.7%7.8%
Contamination /decontamination problem114.8%0.6%
Material deformation83.5%2%
Detachment of device or device componentpart of the device came off62.6%0.5%
Crackthe device cracked52.2%0.8%
Unintended movement52.2%0.1%
Illegible information41.8%1%
Mechanical jam41.8%0.4%
Material integrity problema problem with the device material20.9%0.2%
Material twisted/bent20.9%2.4%
Physical resistance/sticking10.4%0.1%
Structural problem10.4%0%

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
Not applicable20.9%
Bone notching10.4%

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

In context

MeasureUNK HandleProduct code HTOAll MAUDE reports
Reports22729,44326,136,888
Share of that pool—0.8%0%
Classified as death, per 1,000 reports009
Classified as injury0.4%4.1%36.2%
Classified as malfunction99.6%95.7%62.3%
Filed by the manufacturer100%99.2%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 HTO

BrandReportsLatest 12 monthsClassified as death
Quickset Ace Grater Head 51mm1,245110%
Quickset Ace Grater Head 49mm1,213130%
Quickset Ace Grater Head 53mm1,197100%
Quickset Ace Grater Head 47mm1,170130%
Quickset Ace Grater Head 55mm1,157100%
Quickset Ace Grater Head 57mm1,09890%
Quickset Ace Grater Head 52mm982100%
Quickset Ace Grater Head 50mm954100%
Quickset Ace Grater Head 48mm95190%
Quickset Ace Grater Head 54mm935100%
Quickset Ace Grater Head 56mm898120%
Quickset Ace Grater Head 45mm1,024130%
Unk Reamer833710%
Quickset Ace Grater Head 46mm83690%
Quickset Ace Grater Head 59mm73990%

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 UNK Handle reports

How many FDA reports name UNK Handle?

227 medical device reports in the openFDA MAUDE release of 28 Sep 2026, covering reports received through August 2026; 50 in the latest 12 months.

What kinds of events are reported?

malfunction (99.6%) and injury (0.4%). "Event type" is how the report was classified when filed: death, injury, malfunction or other.

What device problems are coded?

device-device incompatibility (52%), break (36.1%), naturally worn (5.7%), contamination /decontamination problem (4.8%) and material deformation (3.5%). 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 UNK Handle 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.