510(k) · Cleared
ClearedFreedom Metaphyseal Cone Implants (Metaphyseal Cones)
Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly
Maxx Orthopedics, Inc. · MBH Prosthesis, Knee, Patello/Femorotibial, Semi-Constrained, Uncemented, Porous, Coated, Polymer/Metal/Polymer
Cleared on Oct 31, 2025 as substantially equivalent to K143393 (Stryker Orthopaedics, 2015) and 1 other predicate after a 59-day review. Its family tree reaches back 9 generations to 1998.
- Decided
- Oct 31, 2025
- Review
- 59 days
- Class
- Class II
- Product code
- MBH
- Recalls
- None
- Predicates
- 2
Its longest line of descent runs back 9 generations to K982302 (1998). 39 ancestors in all, the oldest K921114 (1993). No later device cites it as a predicate yet.
- Root · 9 generations backK982302 Implex Continuum Knee - Hedrocel Tibial SpacersImplex Corp. · 1998
- 5 generations between
- 3 generations backK153595 Optetrak Logic Metaphyseal ConesExactech, Inc. · 2016
- 2 generations backK182346 TRULIANT Porous Tibial Tray and Exactech Alteon Bone ScrewsExactech, Inc. · 2018
- 1 generation backK241597 Freedom® Total Knee System - Porous Tibial Base PlateMaxx Orthopedics, Inc. · 2025
- This deviceK252777 Freedom Metaphyseal Cone Implants (Metaphyseal Cones)Maxx Orthopedics, Inc. · 2025
Show all 9 generations
- Root · 9 generations backK982302 Implex Continuum Knee - Hedrocel Tibial SpacersImplex Corp. · 1998
- 8 generations backK024161 Nexgen Complete Knee Solution - Trabecular Metal AugmentsImplex Corp. · 2003 · Recalled
- 7 generations backK040487 Trabecular Metal Knee System AugmentsImplex Corp. · 2004 · Recalled
- 6 generations backK053340 Trabecular Metal Tibial and Femoral Cone AugmentsZimmer Trabecular · 2006
- 5 generations backK100391 Depuy Universal Gription TF ConesDePuy Orthopaedics, Inc. · 2010
- 4 generations backK143393 Triathlon Tritanium Cone AugmentsStryker Orthopaedics · 2015 · Recalled
- 3 generations backK153595 Optetrak Logic Metaphyseal ConesExactech, Inc. · 2016
- 2 generations backK182346 TRULIANT Porous Tibial Tray and Exactech Alteon Bone ScrewsExactech, Inc. · 2018
- 1 generation backK241597 Freedom® Total Knee System - Porous Tibial Base PlateMaxx Orthopedics, Inc. · 2025
- This deviceK252777 Freedom Metaphyseal Cone Implants (Metaphyseal Cones)Maxx Orthopedics, Inc. · 2025
View FIG. 1 as a table
Line of descent and top descendants
| Generation | Number | Device | Applicant | Decided | Recalls |
|---|---|---|---|---|---|
| −9 | K982302 | Implex Continuum Knee - Hedrocel Tibial Spacers | Implex Corp. | 1998 | — |
| −8 | K024161 | Nexgen Complete Knee Solution - Trabecular Metal Augments | Implex Corp. | 2003 | 2 |
| −7 | K040487 | Trabecular Metal Knee System Augments | Implex Corp. | 2004 | 1 |
| −6 | K053340 | Trabecular Metal Tibial and Femoral Cone Augments | Zimmer Trabecular | 2006 | — |
| −5 | K100391 | Depuy Universal Gription TF Cones | DePuy Orthopaedics, Inc. | 2010 | — |
| −4 | K143393 | Triathlon Tritanium Cone Augments | Stryker Orthopaedics | 2015 | 1 |
| −3 | K153595 | Optetrak Logic Metaphyseal Cones | Exactech, Inc. | 2016 | — |
| −2 | K182346 | TRULIANT Porous Tibial Tray and Exactech Alteon Bone Screws | Exactech, Inc. | 2018 | — |
| −1 | K241597 | Freedom® Total Knee System - Porous Tibial Base Plate | Maxx Orthopedics, Inc. | 2025 | — |
| 0 (this device) | K252777 | Freedom Metaphyseal Cone Implants (Metaphyseal Cones) | Maxx Orthopedics, Inc. | 2025 | — |
Other ancestors by year cleared
| Year cleared | Devices | With a Class I recall |
|---|---|---|
| 1993 | 1 | 0 |
| 1994 | 2 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1999 | 3 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 0 |
| 2003 | 5 | 0 |
| 2004 | 4 | 0 |
| 2005 | 4 | 0 |
| 2006 | 1 | 0 |
| 2007 | 1 | 0 |
| 2010 | 1 | 0 |
| 2012 | 1 | 0 |
| 2013 | 1 | 0 |
| 2014 | 1 | 0 |
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 MBH? A 510(k) Report weighs predicate choices, recall history and review times for a new device like this one.
Top candidate predicates for a new MBH device
- #1 K241597 Freedom® Total Knee System - Porous Tibial…score 19.9 · 8 generations · no Class I recall
- #2 Held for the reportin the report
- #3 Held for the reportin the report
What was it cleared against? (2)
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.
| Type | Number | Device | Decided |
|---|---|---|---|
| * | K143393 | Triathlon Tritanium Cone AugmentsSummary page 5…21 CFR 807.92(a)(3) Predicate # Predicate Trade Name (Primary Predicate is listed first) Product Code K143393 Triathlon Tritanium Cone Augments MBH K241597… | 2015 |
| * | K241597 | Freedom® Total Knee System - Porous Tibial Base PlateSummary page 5…Product Code K143393 Triathlon Tritanium Cone Augments MBH K241597 Freedom® Total Knee System - Porous Tibial Base Plate MBH Device D… | 2025 |
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.
What does this lineage say?
- The line of descent spans 27 years and passes through 6 companies; a new generation was cleared every 2.7 years on median.
- 22 of the 39 ancestors have a recall of any class.
- 5 other devices also cite its predicate K143393.
How does its category compare?
All MBH devicesMBH Prosthesis, Knee, Patello/Femorotibial, Semi-Constrained, Uncemented, Porous, Coated, Polymer/Metal/Polymer: FDA decisions, review times, recalls and adverse event reports over 20 years. 2025, this device’s year, is highlighted.
FDA decisions per year · MBH
8in 2025
2026 to Oct 25, outlined.
Median 510(k) review, days · MBH
98in 2025
Receipt to decision; years with fewer than 3 clearances left blank.
Recalls per year · MBH
1in 2024
Class I (5 since 2007) Class II/III not classified
Adverse event reports per year · MBH
1,561in 2025
MAUDE reports naming product code MBH, not matched to any one device; reports are not rates.
View these four charts as a table
| Year | Decisions | Median 510(k) review, days | Recalls (Class I) | MAUDE reports |
|---|---|---|---|---|
| 2007 | 10 | 59 | 0 | 27 |
| 2008 | 3 | 70 | 0 | 21 |
| 2009 | 3 | 209 | 2 | 89 |
| 2010 | 4 | 84 | 0 | 121 |
| 2011 | 5 | 84 | 15 | 247 |
| 2012 | 5 | 90 | 1 (1) | 370 |
| 2013 | 6 | 138 | 4 (4) | 308 |
| 2014 | 9 | 114 | 0 | 385 |
| 2015 | 8 | 100 | 0 | 955 |
| 2016 | 4 | 74 | 1 | 1,034 |
| 2017 | 4 | 115 | 9 | 1,007 |
| 2018 | 6 | 89 | 1 | 1,191 |
| 2019 | 1 | — | 1 | 1,394 |
| 2020 | 7 | 112 | 2 | 1,089 |
| 2021 | 6 | 48 | 0 | 1,539 |
| 2022 | 7 | 57 | 0 | 1,261 |
| 2023 | 6 | 94 | 2 | 1,263 |
| 2024 | 10 | 84 | 1 | 1,497 |
| 2025 | 8 | 98 | 0 | 1,561 |
| 2026 | 7 | 153 | 4 | — |
What is it indicated for?
The Freedom® Total Knee System is indicated for the following: • Severe knee joint pain, loss of mobility, and disability due to: rheumatoid arthritis, osteoarthritis, traumatic arthritis, polyarthritis. • Correction of functional deformities. • Post-traumatic loss of knee joint contour, particularly when there is patellofemoral erosion, dysfunction, or prior patellectomy. • Moderate valgus, varus, or flexion trauma. • Knee fractures untreatable by other…
Read the full statement (134 words)
The Freedom® Total Knee System is indicated for the following:
• Severe knee joint pain, loss of mobility, and disability due to: rheumatoid arthritis, osteoarthritis, traumatic arthritis, polyarthritis.
• Correction of functional deformities.
• Post-traumatic loss of knee joint contour, particularly when there is patellofemoral erosion, dysfunction, or prior patellectomy.
• Moderate valgus, varus, or flexion trauma.
• Knee fractures untreatable by other methods.
• Revision surgery where sufficient bone stock and soft tissue integrity are present (For PCK Components, and Primary PCK Components, and Metaphyseal Cones only).
The Freedom Porous Tibial Base Plate, and Cementless Femoral Components, and Metaphyseal Cones are indicated for Cemented or Uncemented use. All other components are indicated for cemented use only.
The Freedom Metaphyseal Cones are additionally indicated for use in addressing tibial bone voids and/or metaphyseal reconstruction.
Indications for use as stated in the FDA summary.
https://510kreport.com/device/K252777 · printed Nov 5, 2026
Cite this page
510(k) Report. “K252777: Freedom Metaphyseal Cone Implants (Metaphyseal Cones).” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 5, 2026. https://510kreport.com/device/K252777
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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