510(k) Report

510(k) · Cleared

Cleared

Restoris Multicompartmental Knee System

K133039510(k) SpecialCleared Dec 10, 201375-day reviewClass II21 CFR 888.3560

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

Mako Surgical Corporation · NPJ Prosthesis, Knee Patellofemorotibial, Partial, Semi-Constrained, Cemented, Polymer/Metal/Polymer

Cleared on Dec 10, 2013 as substantially equivalent to K090763 (Mako Surgical Corporation, 2009) after a 75-day review. Its family tree reaches back 7 generations to 1994. 26 later devices descend from it.

Decided
Dec 10, 2013
Review
75 days
Class
Class II
Product code
NPJ
Recalls
None
Predicates
1

Its longest line of descent runs back 7 generations to K943462 (1994). 32 ancestors in all, the oldest K880155 (1988). 26 later devices descend from it, 1 citing it directly.

Other ancestors, by year clearedDescendants, by year cleared 2008: 2 other ancestors2005: 1 other ancestor2007: 1 other ancestor2006: 1 other ancestor2004: 3 other ancestors2002: 3 other ancestors2001: 3 other ancestors1999: 1 other ancestor1997: 2 other ancestors1991: 1 other ancestor2003: 1 other ancestor1998: 1 other ancestor1996: 2 other ancestors1995: 1 other ancestor1993: 1 other ancestor1988: 1 other ancestor2015: 1 descendant cleared2018: 2 descendants cleared2017: 1 descendant cleared2024: 3 descendants cleared2020: 5 descendants cleared2019: 2 descendants cleared2025: 2 descendants cleared2023: 3 descendants cleared2026: 4 descendants cleared2022: 2 descendants cleared2021: 1 descendant clearedK943462 · Darwin Knee System · Johnson & Johnson Professionals, Inc. · 1994 · recalled×2: 2 generations cleared close together, K033272 (2004), K040166 (2004) K061648 · Depuy Graduated Compartmental Knee (GCK) · DePuy Orthopaedics, Inc. · 2006 · recalledK070849 · Depuy GCK Femoral and Tibial Components · DePuy Orthopaedics, Inc. · 2007K082172 · Mako Modular Knee Compartmental Implant System · Mako Surgical Corporation · 2008 · recalledK090763 · Restoris Multicompartmental Knee (MCK) System · Mako Surgical Corporation · 2009 · recalled1990200020102020
  1. Root · 7 generations backK943462 Darwin Knee SystemJohnson & Johnson Professionals, Inc. · 1994 · Recalled
  2. 6 generations backK033272 Depuy Sigma Tibial InsertsDePuy Orthopaedics, Inc. · 2004 · Recalled
  3. 5 generations backK040166 Depuy Sigma XLK Tibial InsertsDePuy Orthopaedics, Inc. · 2004
  4. 4 generations backK061648 Depuy Graduated Compartmental Knee (GCK)DePuy Orthopaedics, Inc. · 2006 · Recalled
  5. 3 generations backK070849 Depuy GCK Femoral and Tibial ComponentsDePuy Orthopaedics, Inc. · 2007
  6. 2 generations backK082172 Mako Modular Knee Compartmental Implant SystemMako Surgical Corporation · 2008 · Recalled
  7. 1 generation backK090763 Restoris Multicompartmental Knee (MCK) SystemMako Surgical Corporation · 2009 · Recalled
  8. This deviceK133039 Restoris Multicompartmental Knee SystemMako Surgical Corporation · 2013
  9. Descendant · cites it directly · 25 of its ownK150307 RESTORIS Multicompartmental Knee SystemMako Surgical Corp. · 2015
  10. Descendant · 2 generations on · 24 of its ownK172326 Triathlon Total Knee System, Triathlon PKR System, Restoris MCK Knee…Stryker Orthopaedics · 2017 · Recalled
  11. Descendant · 3 generations on · 14 of its ownK173849 Triathlon Total Knee SystemStryker Orthopaedics · 2018 · Recalled
  12. Descendant · 3 generations on · 11 of its ownK190402 Triathlon Total Knee System-Additional ComponentsStryker Orthopaedics (Aka Howmedica Osteonics Corp.) · 2019
  13. Descendant · 3 generations on · 4 of its ownK230952 Triathlon® Total Knee System - Triathlon® Pro Posterior Stabilized…Howmedica Osteonics Corp., Dba Stryker Orthopaedics · 2023

Showing 5 of 26 descendants. See all descendants

Descendants cleared per year

2015: 12017: 12018: 22019: 22020: 52021: 12022: 22023: 32024: 32025: 22026: 4
2015high 5 (2020) · low 0 (2016)2026

Most influential descendants

Showing 5 of 26 · See all
  • K150307RESTORIS Multicompartmental Knee SystemMako Surgical Corp. · 2015 · cites it directly25descendants
  • K172326Triathlon Total Knee System, Triathlon PKR System, Restoris MCK Knee SystemStryker Orthopaedics · 2017 · 2 generations on24descendants
  • K173849Triathlon Total Knee SystemStryker Orthopaedics · 2018 · 3 generations on14descendants
  • K190402Triathlon Total Knee System-Additional ComponentsStryker Orthopaedics (Aka Howmedica Osteonics Corp.) · 2019 · 3 generations on11descendants
  • K230952Triathlon® Total Knee System - Triathlon® Pro Posterior Stabilized (PS) Femoral ComponentHowmedica Osteonics Corp., Dba Stryker Orthopaedics · 2023 · 3 generations on4descendants
View FIG. 1 as a table

Line of descent and top descendants

GenerationNumberDeviceApplicantDecidedRecalls
−7K943462Darwin Knee SystemJohnson & Johnson Professionals, Inc.19948
−6K033272Depuy Sigma Tibial InsertsDePuy Orthopaedics, Inc.200451
−5K040166Depuy Sigma XLK Tibial InsertsDePuy Orthopaedics, Inc.2004—
−4K061648Depuy Graduated Compartmental Knee (GCK)DePuy Orthopaedics, Inc.20061
−3K070849Depuy GCK Femoral and Tibial ComponentsDePuy Orthopaedics, Inc.2007—
−2K082172Mako Modular Knee Compartmental Implant SystemMako Surgical Corporation20082
−1K090763Restoris Multicompartmental Knee (MCK) SystemMako Surgical Corporation20095
0 (this device)K133039Restoris Multicompartmental Knee SystemMako Surgical Corporation2013—
+1K150307RESTORIS Multicompartmental Knee SystemMako Surgical Corp.2015—
+2K172326Triathlon Total Knee System, Triathlon PKR System, Restoris MCK Knee SystemStryker Orthopaedics20171
+3K173849Triathlon Total Knee SystemStryker Orthopaedics20183
+3K190402Triathlon Total Knee System-Additional ComponentsStryker Orthopaedics (Aka Howmedica Osteonics Corp.)2019—
+3K230952Triathlon® Total Knee System - Triathlon® Pro Posterior Stabilized (PS)…Howmedica Osteonics Corp., Dba Stryker Orthopaedics2023—

Other ancestors by year cleared

Year clearedDevicesWith a Class I recall
198810
199110
199310
199510
199620
199720
199810
199910
200130
200230
200310
200430
200510
200610
200710
200820

Descendants by year cleared

Year clearedDevicesWith a Class I recall
201510
201710
201820
201920
202050
202110
202220
202330
202430
202520
202640
FIG. 1 — Lineage of K133039, 1994–2026Source: FDA 510(k) summaries, read by 510(k) Report · How lineage is built

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

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

Planning a device in NPJ? 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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What was it cleared against? (1)

Devices the submitter claimed this one is substantially equivalent to (*), and reference devices cited for a specific test or feature (†), as written in the FDA summary.

TypeNumberDeviceApplicantDecidedRecalls
*K090763Restoris Multicompartmental Knee (MCK) System
Summary page 3
…Manufacturer 510(k) U RESTORIS Multieompartmental Knee System MAKO K090763 Technological Characteristics: The RESTORI STM Multicompartmental Knee System is similar to legally marketed devices listed pre…
Mako Surgical Corporation20095

Also cleared against K090763: 3 other devices →

What descends from it? (26)

See all 26

1 later device cites it directly; ranked here by how many devices descend from each in turn.

NumberDeviceApplicantDecidedDescendants
K150307RESTORIS Multicompartmental Knee SystemMako Surgical Corp.201525

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.

What does this lineage say?

  • The line of descent spans 19 years and passes through 3 companies; a new generation was cleared every 1.4 years on median.
  • 17 of the 32 ancestors have a recall of any class.
  • Of its descendants, K150307 (Mako Surgical Corp., 2015) has gone furthest, with 25 descendants of its own.
  • 3 other devices also cite its predicate K090763.

How does its category compare?

All NPJ devices

NPJ Prosthesis, Knee Patellofemorotibial, Partial, Semi-Constrained, Cemented, Polymer/Metal/Polymer: FDA decisions, review times, recalls and adverse event reports over 20 years. 2013, this device’s year, is highlighted.

FDA decisions per year · NPJ

1in 2015

2007: 12009: 32013: 12015: 1
2007high 3 (2009) · low 0 (2008)2026

2026 to Oct 25, outlined.

Median 510(k) review, days · NPJ

76in 2009

2009: 76 days median
2007high 76 (2009)2026

Receipt to decision; years with fewer than 3 clearances left blank.

Recalls per year · NPJ

1in 2016

2011: 12015: 32016: 12026 (partial year): 1
2007high 3 (2015) · low 0 (2007)2026

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

Adverse event reports per year · NPJ

47in 2025

2008: 12009: 32010: 132011: 322012: 722013: 982014: 752015: 552016: 932017: 1502018: 1412019: 912020: 652021: 512022: 322023: 522024: 442025: 47
2007high 150 (2017) · low 0 (2007)2025

MAUDE reports naming product code NPJ, 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
20071—00
20080—01
200937603
20100—013
20110—132
20120—072
20131—098
20140—075
20151—355
20160—193
20170—0150
20180—0141
20190—091
20200—065
20210—051
20220—032
20230—052
20240—044
20250—047
20260—1—

What is it indicated for?

RESTORIS™ Multicompartmental Knee (MCK) System is indicated for single or multi-compartmental knee replacement used in conjunction with RIO®, the Robotic Arm Interactive Orthopedic System, in individuals with osteoarthritis or post-traumatic arthritis of the tibiofemoral and/or patellofemoral articular surfaces. The specific knee replacement configurations include:

* Medial unicondylar

* Lateral unicondylar

- Patellofemoral

* Medial bi-compartmental (medial unicondylar and patellofemoral)

RESTORIS™ Multicompartmental Knee (MCK) System is for single use only and is intended for implantation with bone cement.

Indications for use as stated in the FDA summary.

Cite this page

510(k) Report. “K133039: Restoris Multicompartmental Knee System.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 6, 2026. https://510kreport.com/device/K133039

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Record history
  • FDA decision record loaded May 2, 2026
  • Summary read Oct 13, 2026 (extraction version 9eaa42aa01ed)
  • Lineage and recalls computed Nov 3, 2026
  • Page last updated Nov 3, 2026