510(k) Report

PMA · Approved

Approved

Natural Knee & Natural Knee II

P940002/S003PMAApproved Apr 18, 200025-day reviewClass III

Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly, last Nov 3, 2026

Sulzermedica · MBD Prosthesis, Knee, Patello/Femorotibial, Unconstrained, Uncemented, Porous, Coated, Polymer/Metal/Polymer

Approved on Apr 18, 2000 through premarket approval, which rests on the device’s own clinical evidence after a 25-day review.

Decided
Apr 18, 2000
Review
25 days
Class
Class III
Product code
MBD
Recalls
None

PMA approvals rest on their own clinical evidence and do not claim a predicate, so this family tree starts here.

FIG. 1 — Lineage of P940002/S003Source: FDA PMA database · How lineage is built

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Notable FDA decisions, review times and new Class I recalls. See an issue.

Sources: FDA PMA database (decision fields and supplements), FDA recall and enforcement reports, and MAUDE; processed by 510(k) Report. Verify on FDA.gov · Methodology and accuracy.

Planning a device in MBD? A 510(k) Report weighs predicate choices, recall history and review times for a new device like this one.

  • Candidate predicates for a device like this, rankedin the report
  • Recall history across each candidate’s familyin the report
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Does it have a predicate?

PMA decisions do not claim a predicate device.

What descends from it?

No later submission names this one as a predicate yet.

Has anything in its family been recalled? (0 Class I)

No FDA recall names this device.

No ancestor or descendant has a Class I recall.

How does its category compare?

All MBD devices

MBD Prosthesis, Knee, Patello/Femorotibial, Unconstrained, Uncemented, Porous, Coated, Polymer/Metal/Polymer: FDA decisions, review times, recalls and adverse event reports over 20 years.

FDA decisions per year · MBD

FDA has decided no MBD device since 2007.

Median 510(k) review, days · MBD

Too few MBD 510(k)s in any year since 2007 to give a median.

Recalls per year · MBD

1in 2007

2007: 1
2007high 1 (2007) · low 0 (2008)2026

Class I (0 since 2007) Class II/III not classified

Adverse event reports per year · MBD

1in 2025

2007: 62008: 12012: 12018: 12025: 1
2007high 6 (2007) · low 0 (2009)2025

MAUDE reports naming product code MBD, not matched to any one device; reports are not rates.

View these four charts as a table
YearDecisionsMedian 510(k) review, daysRecalls (Class I)MAUDE reports
20070—16
20080—01
20090—00
20100—00
20110—00
20120—01
20130—00
20140—00
20150—00
20160—00
20170—00
20180—01
20190—00
20200—00
20210—00
20220—00
20230—00
20240—00
20250—01
20260—0—
Cite this page

510(k) Report. “P940002/S003: Natural Knee & Natural Knee II.” Lineage record from FDA PMA data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 5, 2026. https://510kreport.com/device/P940002/S003

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Record history
  • FDA decision record loaded May 2, 2026
  • Page last updated Nov 3, 2026