Reported Reactions

Devices › Screw, fixation, bone

Device brand name · Screw fixation bone

Unk - Screws 3 5 Mm Cortex: medical device reports filed with FDA

220 reports name it, 2021–2026. Manufacturer given most often on reports: Wrights Lane Synthes USA Products. Product code HWC.

220
device reports naming the brand
0% of all MAUDE reports · about 42 a year
33
reports, 12 months to August 2026
21 in the 12 months before
2.7%
classified as malfunction
30.8% across the product code
0%
classified as death, as reported
0 reports · not verified by FDA

220 medical device reports received by FDA name the brand "Unk - Screws 3 5 Mm Cortex" (screw fixation bone); the manufacturer given most often on reports is Wrights Lane Synthes USA Products; received from April 2021 to April 2026. Brand names are as the reporter or manufacturer wrote them, so one product can appear under several spellings.

33 reports arrived in the 12 months to August 2026, up 57% from 21 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 (97.3%) and malfunction (2.7%); across all screw, fixation, bone reports (product code HWC) death is recorded in 0.1% and malfunction in 30.8%. Event type is the reporter's classification of the report, not a verified outcome.

The device problems coded most often are break (18.6%), device-device incompatibility (0.9%) and entrapment of device (0.9%). The patient problems coded most often are nonunion/delayed-union bone fracture, appropriate clinical signs, symptoms and conditions term/code not available and malunion of bone. 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

01224Sep 2021: 7Oct 2021: 24Nov 2021: 3Dec 2021: 72022Jan 2022: 1Feb 2022: 0Mar 2022: 1Apr 2022: 13May 2022: 1Jun 2022: 0Jul 2022: 1Aug 2022: 13Sep 2022: 5Oct 2022: 15Nov 2022: 5Dec 2022: 32023Jan 2023: 1Feb 2023: 2Mar 2023: 0Apr 2023: 0May 2023: 0Jun 2023: 6Jul 2023: 0Aug 2023: 9Sep 2023: 0Oct 2023: 0Nov 2023: 0Dec 2023: 22024Jan 2024: 0Feb 2024: 0Mar 2024: 0Apr 2024: 0May 2024: 0Jun 2024: 0Jul 2024: 0Aug 2024: 0Sep 2024: 3Oct 2024: 6Nov 2024: 6Dec 2024: 02025Jan 2025: 0Feb 2025: 1Mar 2025: 0Apr 2025: 5May 2025: 0Jun 2025: 0Jul 2025: 0Aug 2025: 0Sep 2025: 0Oct 2025: 2Nov 2025: 15Dec 2025: 02026Jan 2026: 3Feb 2026: 0Mar 2026: 12Apr 2026: 1May 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

044882021: 8820212022: 5820222023: 2020232024: 1520242025: 2320252026: 162026

Event type and report source

Event type, as classified on the report

Death0%0
Injury97.3%214
Malfunction2.7%6
Other0%0
Not given0%0

Who filed the report

Manufacturer report100%220
Voluntary report0%0
User facility report0%0
Distributor report0%0
Not given0%0

Grey bar: all 58,946 reports carrying product code HWC. Event type is the filer's classification and is not verified by FDA.

Device problems coded

Device problem (FDA code)ReportsShareShare across product code
Breakthe device broke4118.6%26.4%
Device-device incompatibility20.9%4.1%
Entrapment of device20.9%1.2%
Material deformation10.5%1%
Material twisted/bent10.5%1.4%
Migrationthe device moved from where it was placed10.5%4.4%

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
Nonunion/delayed-union bone fracture9241.8%
Appropriate clinical signs, symptoms and conditions term/code not available2410.9%
Malunion of bone2310.5%
Painpain, site not specified2310.5%
Physical asymmetry167.3%
Bone fracture(s)94.1%
Impaired healingslow healing83.6%
Failure of implant73.2%
Wound dehiscencea wound reopened41.8%
Muscle/tendon damage31.4%
Discomfortdiscomfort20.9%
Foreign body in patientpart of a device left in the patient20.9%
Ambulation or postural difficulties10.5%
Arthritis10.5%
Hemorrhage/blood loss/bleeding10.5%

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

In context

MeasureUnk - Screws 3 5 Mm CortexProduct code HWCAll MAUDE reports
Reports22058,94626,136,888
Share of that pool—0.4%0%
Classified as death, per 1,000 reports019
Classified as injury97.3%67.2%36.2%
Classified as malfunction2.7%30.8%62.3%
Filed by the manufacturer100%97.3%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 HWC

BrandReportsLatest 12 monthsClassified as death
UNK - Screws: Trauma3,5762880%
UNK - Screws: Locking2,331980%
Unk - Screws Cortex889160%
Unknown Screw1,2221560%
Screw64700%
UNK - Screws: Nail Distal Locking444120.2%
Unknown Screws652231.7%
UNK - Screws: CMF4102800%
UNK - Screws: Locking: Trauma276340%
Unk - Screws Nail Locking211190%
UNK - Screws: 2.7 mm VA Locking204220%
Unk - Screws Cannulated19090.5%
Unk - Screws25600%
Locking Screw24130%
Ni32,9391,5871.8%

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 - Screws 3 5 Mm Cortex reports

How many FDA reports name Unk - Screws 3 5 Mm Cortex?

220 medical device reports in the openFDA MAUDE release of 28 Sep 2026, covering reports received through August 2026; 33 in the latest 12 months.

What kinds of events are reported?

injury (97.3%) and malfunction (2.7%). "Event type" is how the report was classified when filed: death, injury, malfunction or other.

What device problems are coded?

break (18.6%), device-device incompatibility (0.9%), entrapment of device (0.9%), material deformation (0.5%) and material twisted/bent (0.5%). 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 - Screws 3 5 Mm Cortex 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.