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
Event type and report source
Event type, as classified on the report
Who filed the report
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) | Reports | Share | Share across product code |
|---|---|---|---|
| Difficult to insertthe device was hard to insert | 44 | 27.3% | 2.1% |
| Insufficient device problem information | 34 | 21.1% | 19.2% |
| Breakthe device broke | 29 | 18% | 5.5% |
| Unstable | 19 | 11.8% | 9.1% |
| Fitting problem | 10 | 6.2% | 0.6% |
| Fracturea broken bone | 9 | 5.6% | 9.8% |
| Device dislodged or dislocated | 4 | 2.5% | 1.6% |
| Component missing | 2 | 1.2% | 0.6% |
| Device damaged prior to usethe device was damaged before use | 2 | 1.2% | 0.3% |
| Failure to adhere or bond | 2 | 1.2% | 0.4% |
| Migration or expulsion of device | 2 | 1.2% | 1% |
| Pitted | 1 | 0.6% | 0.1% |
| Positioning problem | 1 | 0.6% | 0.4% |
| Scratched material | 1 | 0.6% | 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) | Reports | Share |
|---|---|---|
| Painpain, site not specified | 49 | 30.4% |
| Limited mobility of the implanted joint | 7 | 4.3% |
| Falla fall | 4 | 2.5% |
| Joint swellinga swollen joint | 3 | 1.9% |
| Swellingswelling | 3 | 1.9% |
| Extraskeletal ossification | 2 | 1.2% |
| Loss of range of motion | 2 | 1.2% |
| Damage to ligament(s) | 1 | 0.6% |
| Device embedded in tissue or plaque | 1 | 0.6% |
| Injurya physical injury | 1 | 0.6% |
| Rupturethe device burst | 1 | 0.6% |
Patient problem codes are present mainly in reports filed since 2019 and are often blank.
In context
| Measure | Nexgen Lps-Flex Prolong Articular Surface | Product code MBH | All MAUDE reports |
|---|---|---|---|
| Reports | 161 | 16,482 | 26,136,888 |
| Share of that pool | — | 1% | 0% |
| Classified as death, per 1,000 reports | 0 | 1 | 9 |
| Classified as injury | 62.7% | 75.7% | 36.2% |
| Classified as malfunction | 37.3% | 24% | 62.3% |
| Filed by the manufacturer | 100% | 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
| Brand | Reports | Latest 12 months | Classified as death |
|---|---|---|---|
| Triathlon Ps X3 Tibial Insert | 1,106 | 21 | 0% |
| Triathlon Cr X3 Tibial Insert | 723 | 13 | 0% |
| Unknown Knee | 1,847 | 18 | 1.5% |
| Triathlon Prim Tib Baseplate - Cemented | 384 | 3 | 0.5% |
| Triathlon Ps Fem Component Cemented | 298 | 6 | 0.3% |
| Triathlon Asymmetric X3 Patella | 171 | 6 | 0% |
| Persona FEMORAL CR IMPACTOR PAD | 348 | 33 | 0% |
| Unknown Stryker knee | 194 | 17 | 0.5% |
| Femoral Cr Impactor Pad | 381 | 12 | 0% |
| Tibial Articular Surface Provisional Left Size Ef | 422 | 0 | 0% |
| Nexgen Cr-Flex Femoral Component | 251 | 0 | 0% |
| Tibial Articular Surface Provisional Right Size Ef | 425 | 0 | 0% |
| Unknown Femoral Component | 642 | 90 | 0.3% |
| R3 Offset Impactor Tip | 497 | 44 | 0% |
| Unknown Articular Surface | 473 | 78 | 0% |
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.