Reported Reactions

Devices › Orthopedic stereotaxic instrument

Device brand name · Orthopedic stereotaxic instrument

Reamer Handle Offset: medical device reports filed with FDA

758 reports name it, 2022–2026. Manufacturer given most often on reports: Mako Surgical. Product code OLO.

758
device reports naming the brand
0% of all MAUDE reports · about 212 a year
345
reports, 12 months to August 2026
320 in the 12 months before
99.7%
classified as malfunction
81.6% across the product code
0%
classified as death, as reported
0 reports · not verified by FDA

758 medical device reports received by FDA name the brand "Reamer Handle Offset" (orthopedic stereotaxic instrument); the manufacturer given most often on reports is Mako Surgical; received from December 2022 to August 2026. Brand names are as the reporter or manufacturer wrote them, so one product can appear under several spellings.

345 reports arrived in the 12 months to August 2026, close to the 320 of 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 (99.7%) and other (0.3%); across all orthopedic stereotaxic instrument reports (product code OLO) death is recorded in 0.1% and malfunction in 81.6%. Event type is the reporter's classification of the report, not a verified outcome.

The device problems coded most often are detachment of device or device component (95.3%), component missing (14.1%) and material fragmentation (1.6%). The patient problems coded most often are foreign body in patient. 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

02652Sep 2021: 0Oct 2021: 0Nov 2021: 0Dec 2021: 02022Jan 2022: 0Feb 2022: 0Mar 2022: 0Apr 2022: 0May 2022: 0Jun 2022: 0Jul 2022: 0Aug 2022: 0Sep 2022: 0Oct 2022: 0Nov 2022: 0Dec 2022: 62023Jan 2023: 1Feb 2023: 4Mar 2023: 5Apr 2023: 1May 2023: 2Jun 2023: 6Jul 2023: 2Aug 2023: 1Sep 2023: 2Oct 2023: 3Nov 2023: 2Dec 2023: 12024Jan 2024: 7Feb 2024: 3Mar 2024: 3Apr 2024: 6May 2024: 7Jun 2024: 8Jul 2024: 9Aug 2024: 14Sep 2024: 7Oct 2024: 27Nov 2024: 28Dec 2024: 182025Jan 2025: 37Feb 2025: 21Mar 2025: 27Apr 2025: 39May 2025: 33Jun 2025: 32Jul 2025: 26Aug 2025: 25Sep 2025: 23Oct 2025: 29Nov 2025: 24Dec 2025: 262026Jan 2026: 22Feb 2026: 25Mar 2026: 34Apr 2026: 36May 2026: 31Jun 2026: 15Jul 2026: 28Aug 2026: 52

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

01713422022: 620222023: 3020232024: 13720242025: 34220252026: 2432026

Event type and report source

Event type, as classified on the report

Death0%0
Injury0%0
Malfunction99.7%756
Other0.3%2
Not given0%0

Who filed the report

Manufacturer report100%758
Voluntary report0%0
User facility report0%0
Distributor report0%0
Not given0%0

Grey bar: all 20,634 reports carrying product code OLO. Event type is the filer's classification and is not verified by FDA.

Device problems coded

Device problem (FDA code)ReportsShareShare across product code
Detachment of device or device componentpart of the device came off72295.3%7.2%
Component missing10714.1%0.6%
Material fragmentation121.6%1.9%
Breakthe device broke91.2%10.3%
Difficult to insertthe device was hard to insert81.1%0.3%
Degraded70.9%0.2%
Fracturea broken bone70.9%3.1%
Mechanical problema mechanical problem30.4%9.2%
Separation failure30.4%0.1%
Difficult to removethe device was hard to remove20.3%0.2%
Failure to calibrate20.3%0.7%
Material deformation20.3%4.1%
Migrationthe device moved from where it was placed20.3%0.1%
Contamination10.1%0.1%
Corrodedthe device corroded10.1%0.1%
Dent in material10.1%0%
Device dislodged or dislocated10.1%0.2%
Failure to cut10.1%0.3%
Mechanical jam10.1%1.6%
Residue after decontamination10.1%0.8%

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
Foreign body in patientpart of a device left in the patient10.1%

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

In context

MeasureReamer Handle OffsetProduct code OLOAll MAUDE reports
Reports75820,63426,136,888
Share of that pool—3.7%0%
Classified as death, per 1,000 reports019
Classified as injury0%18.2%36.2%
Classified as malfunction99.7%81.6%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 OLO

BrandReportsLatest 12 monthsClassified as death
Mazor X System1,0092380.6%
Real Intelligence Cori983970%
3 0 Rio Robotic Arm - Mics84720%
Handpiece MICS8121830%
Velys Saw Interface Right6111240%
Velys Saw Interface Left5971250%
Excelsius Gps5971280.3%
Real Intelligence Robotic Drill585810%
Navio Handpiece48900%
NavLock464900%
Velys Satellite Station353940%
Navio Surgical System Us33400%
Mako Robotic Arm 3 1317650%
Velys Saw Handpiece269820%
Velys2572570%

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 Reamer Handle Offset reports

How many FDA reports name Reamer Handle Offset?

758 medical device reports in the openFDA MAUDE release of 28 Sep 2026, covering reports received through August 2026; 345 in the latest 12 months.

What kinds of events are reported?

malfunction (99.7%) and other (0.3%). "Event type" is how the report was classified when filed: death, injury, malfunction or other.

What device problems are coded?

detachment of device or device component (95.3%), component missing (14.1%), material fragmentation (1.6%), break (1.2%) and difficult to insert (1.1%). 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 Reamer Handle Offset 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.