Reported Reactions

Devices › Prosthesis, knee, patello/femorotibial, semi-constrained, uncemented, porous, coated, polymer/metal/polymer

Device brand name · Jwh

Nexgen Lps-Flex Prolong Articular Surface: medical device reports filed with FDA

161 reports name it, 2011–2016. Manufacturer given most often on reports: Zimmer. Product code MBH.

161
device reports naming the brand
0% of all MAUDE reports · about 10 a year
0
reports, 12 months to August 2026
0 in the 12 months before
37.3%
classified as malfunction
24% across the product code
0%
classified as death, as reported
0 reports · not verified by FDA

161 medical device reports received by FDA name the brand "Nexgen Lps-Flex Prolong Articular Surface" (jwh); the manufacturer given most often on reports is Zimmer; received from February 2011 to November 2016. Brand names are as the reporter or manufacturer wrote them, so one product can appear under several spellings.

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 (62.7%) and malfunction (37.3%); across all prosthesis, knee, patello/femorotibial, semi-constrained, uncemented, porous, coated, polymer/metal/polymer reports (product code MBH) death is recorded in 0.1% and malfunction in 24%. Event type is the reporter's classification of the report, not a verified outcome.

The device problems coded most often are difficult to insert (27.3%), insufficient device problem information (21.1%) and break (18%). The patient problems coded most often are pain, limited mobility of the implanted joint and fall. 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

No report naming Nexgen Lps-Flex Prolong Articular Surface was received in the five years to August 2026; the latest was received in November 2016.

By year received

029572011: 320112012: 1220122013: 2720132014: 4220142015: 5720152016: 202016

Event type and report source

Event type, as classified on the report

Death0%0
Injury62.7%101
Malfunction37.3%60
Other0%0
Not given0%0

Who filed the report

Manufacturer report100%161
Voluntary report0%0
User facility report0%0
Distributor report0%0
Not given0%0

Grey bar: all 16,482 reports carrying product code MBH. Event type is the filer's classification and is not verified by FDA.

Device problems coded

Device problem (FDA code)ReportsShareShare across product code
Difficult to insertthe device was hard to insert4427.3%2.1%
Insufficient device problem information3421.1%19.2%
Breakthe device broke2918%5.5%
Unstable1911.8%9.1%
Fitting problem106.2%0.6%
Fracturea broken bone95.6%9.8%
Device dislodged or dislocated42.5%1.6%
Component missing21.2%0.6%
Device damaged prior to usethe device was damaged before use21.2%0.3%
Failure to adhere or bond21.2%0.4%
Migration or expulsion of device21.2%1%
Pitted10.6%0.1%
Positioning problem10.6%0.4%
Scratched material10.6%0.3%

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
Painpain, site not specified4930.4%
Limited mobility of the implanted joint74.3%
Falla fall42.5%
Joint swellinga swollen joint31.9%
Swellingswelling31.9%
Extraskeletal ossification21.2%
Loss of range of motion21.2%
Damage to ligament(s)10.6%
Device embedded in tissue or plaque10.6%
Injurya physical injury10.6%
Rupturethe device burst10.6%

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

In context

MeasureNexgen Lps-Flex Prolong Articular SurfaceProduct code MBHAll MAUDE reports
Reports16116,48226,136,888
Share of that pool—1%0%
Classified as death, per 1,000 reports019
Classified as injury62.7%75.7%36.2%
Classified as malfunction37.3%24%62.3%
Filed by the manufacturer100%99.5%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 MBH

BrandReportsLatest 12 monthsClassified as death
Triathlon Ps X3 Tibial Insert1,106210%
Triathlon Cr X3 Tibial Insert723130%
Unknown Knee1,847181.5%
Triathlon Prim Tib Baseplate - Cemented38430.5%
Triathlon Ps Fem Component Cemented29860.3%
Triathlon Asymmetric X3 Patella17160%
Persona FEMORAL CR IMPACTOR PAD348330%
Unknown Stryker knee194170.5%
Femoral Cr Impactor Pad381120%
Tibial Articular Surface Provisional Left Size Ef42200%
Nexgen Cr-Flex Femoral Component25100%
Tibial Articular Surface Provisional Right Size Ef42500%
Unknown Femoral Component642900.3%
R3 Offset Impactor Tip497440%
Unknown Articular Surface473780%

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 Nexgen Lps-Flex Prolong Articular Surface reports

How many FDA reports name Nexgen Lps-Flex Prolong Articular Surface?

161 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 (62.7%) and malfunction (37.3%). "Event type" is how the report was classified when filed: death, injury, malfunction or other.

What device problems are coded?

difficult to insert (27.3%), insufficient device problem information (21.1%), break (18%), unstable (11.8%) and fitting problem (6.2%). 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 Nexgen Lps-Flex Prolong Articular Surface 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.