510(k) · Cleared
Recalled · Class II · 2017GMK Total Knee System
Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly
Medacta International S.A. · JWH Prosthesis, Knee, Patellofemorotibial, Semi-Constrained, Cemented, Polymer/Metal/Polymer
Cleared on Jul 10, 2009 as substantially equivalent to K081023 (Medacta International S.A., 2008) and 3 other predicates after a 94-day review. Its family tree reaches back 8 generations to 1994. 52 later devices descend from it. It has been recalled once.
- Decided
- Jul 10, 2009
- Review
- 94 days
- Class
- Class II
- Product code
- JWH
- Recalls
- 1
- Predicates
- 4
Its longest line of descent runs back 8 generations to K941847 (1994). 84 ancestors in all, the oldest K840643 (1984). 52 later devices descend from it, 18 citing it directly.
- Root · 8 generations backK941847 5/8 Porocoat Aml Hip Porocoat Porous CoatingDepuy, Inc. · 1994
- 7 generations backK964650 TCP-Coated Porocoat Aml Femoral Hip ProsthesisDepuy, Inc. · 1997
- 6 generations backK980711 Harris/Galante Porous (HGP) Hip Prosthesis with Calcicoat Ceramic…Zimmer, Inc. · 1998 · Recalled
- 5 generations backK001277 Triflange Acetabular Cup SystemDePuy Orthopaedics, Inc. · 2000
- 4 generations backK031495 Pinnacle Duofix HA Acetabular Cup ProsthesisDePuy Orthopaedics, Inc. · 2003
- 3 generations backK042344 Excia Total Hip SystemAesculap, Inc. · 2005 · Recalled
- 2 generations backK070981 Search Evolution (LC) Total Knee System (Plasmapore)Aesculap Implant Systems, Inc. · 2007
- 1 generation backK081023 Evolis Total Knee SystemMedacta International S.A. · 2008 · Recalled
- This deviceK090988 GMK Total Knee SystemMedacta International S.A. · 2009
- Descendant · cites it directly · 34 of its ownK102437 GMK Revision Knee SystemMedacta International S.A. · 2010
- Descendant · cites it directly · 28 of its ownK103170 GMK Revision Knee SC LinersMedacta International S.A. · 2011
- Descendant · cites it directly · 23 of its ownK113571 GMK Resufacing Patella Size 4Medacta International · 2012
- Descendant · cites it directly · 20 of its ownK121416 GMK SphereMedacta International · 2012
- Descendant · cites it directly · 17 of its ownK140826 GMK Sphere ExtensionMedacta International · 2014
Showing 5 of 52 descendants. See all descendants
Descendants cleared per year
Most influential descendants
Showing 5 of 52 · See all- K102437GMK Revision Knee SystemMedacta International S.A. · 2010 · cites it directly34descendants
- K103170GMK Revision Knee SC LinersMedacta International S.A. · 2011 · cites it directly28descendants
- K113571GMK Resufacing Patella Size 4Medacta International · 2012 · cites it directly23descendants
- K121416GMK SphereMedacta International · 2012 · cites it directly20descendants
- K140826GMK Sphere ExtensionMedacta International · 2014 · cites it directly17descendants
View FIG. 1 as a table
Line of descent and top descendants
| Generation | Number | Device | Applicant | Decided | Recalls |
|---|---|---|---|---|---|
| −8 | K941847 | 5/8 Porocoat Aml Hip Porocoat Porous Coating | Depuy, Inc. | 1994 | — |
| −7 | K964650 | TCP-Coated Porocoat Aml Femoral Hip Prosthesis | Depuy, Inc. | 1997 | — |
| −6 | K980711 | Harris/Galante Porous (HGP) Hip Prosthesis with Calcicoat Ceramic Coating | Zimmer, Inc. | 1998 | 1 |
| −5 | K001277 | Triflange Acetabular Cup System | DePuy Orthopaedics, Inc. | 2000 | — |
| −4 | K031495 | Pinnacle Duofix HA Acetabular Cup Prosthesis | DePuy Orthopaedics, Inc. | 2003 | — |
| −3 | K042344 | Excia Total Hip System | Aesculap, Inc. | 2005 | 10 |
| −2 | K070981 | Search Evolution (LC) Total Knee System (Plasmapore) | Aesculap Implant Systems, Inc. | 2007 | — |
| −1 | K081023 | Evolis Total Knee System | Medacta International S.A. | 2008 | 1 |
| 0 (this device) | K090988 | GMK Total Knee System | Medacta International S.A. | 2009 | — |
| +1 | K102437 | GMK Revision Knee System | Medacta International S.A. | 2010 | — |
| +1 | K103170 | GMK Revision Knee SC Liners | Medacta International S.A. | 2011 | — |
| +1 | K113571 | GMK Resufacing Patella Size 4 | Medacta International | 2012 | — |
| +1 | K121416 | GMK Sphere | Medacta International | 2012 | — |
| +1 | K140826 | GMK Sphere Extension | Medacta International | 2014 | — |
Other ancestors by year cleared
| Year cleared | Devices | With a Class I recall |
|---|---|---|
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1987 | 2 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 2 | 0 |
| 1993 | 3 | 0 |
| 1994 | 5 | 0 |
| 1995 | 5 | 0 |
| 1996 | 8 | 0 |
| 1997 | 4 | 0 |
| 1998 | 5 | 0 |
| 1999 | 3 | 0 |
| 2000 | 6 | 0 |
| 2001 | 7 | 0 |
| 2002 | 8 | 0 |
| 2003 | 4 | 0 |
| 2004 | 3 | 0 |
| 2005 | 1 | 0 |
| 2006 | 2 | 0 |
| 2007 | 3 | 0 |
Descendants by year cleared
| Year cleared | Devices | With a Class I recall |
|---|---|---|
| 2010 | 2 | 0 |
| 2011 | 2 | 0 |
| 2012 | 4 | 0 |
| 2013 | 4 | 0 |
| 2014 | 2 | 0 |
| 2016 | 1 | 0 |
| 2017 | 3 | 0 |
| 2018 | 2 | 0 |
| 2020 | 5 | 0 |
| 2021 | 7 | 0 |
| 2022 | 3 | 0 |
| 2023 | 4 | 0 |
| 2024 | 2 | 0 |
| 2025 | 5 | 0 |
| 2026 | 6 | 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 JWH? 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 JWH device
- #1 K221479 Persona Personalized Knee Systemscore 22.4 · 11 generations · no Class I recall
- #2 Held for the reportin the report
- #3 Held for the reportin the report
What was it cleared against? (4)
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 |
|---|---|---|---|
| * | K081023 | Evolis Total Knee SystemSummary page 1…nee Prosthesis Classification Name: Knee joint patellofemorotibial metal/polymer/metal semniconstrained cemented prosthesis, 21 CFR 888.3560 Predicate Devices: K081023 Evolis Total Knee System (Medacta International) K072858 TC Plus Primary Knee System (Smith and Nephew) K043101 NexGe… | 2008 |
| * | K072858 | TC-Plus Primary Knee SystemSummary page 1…otibial metal/polymer/metal semniconstrained cemented prosthesis, 21 CFR 888.3560 Predicate Devices: K081023 Evolis Total Knee System (Medacta International) K072858 TC Plus Primary Knee System (Smith and Nephew) K043101 NexGen® Complete Knee Solution MIS Tibial Components (Zimmer)… | 2007 |
| * | K043101 | Nexgen Complete Knee Solution Mis Tibial Components, Locking Screw and Stem ExtensionsSummary page 1…sis, 21 CFR 888.3560 Predicate Devices: K081023 Evolis Total Knee System (Medacta International) K072858 TC Plus Primary Knee System (Smith and Nephew) K043101 NexGen® Complete Knee Solution MIS Tibial Components (Zimmer) K021657 UKNEE Total. Knee System (United Orthopedic Cor… | 2005 |
| * | K021657 | Uknee Total Knee SystemSummary page 1…dacta International) K072858 TC Plus Primary Knee System (Smith and Nephew) K043101 NexGen® Complete Knee Solution MIS Tibial Components (Zimmer) K021657 UKNEE Total. Knee System (United Orthopedic Corporation) Product Description: The GMK® Total Knee System is a tricompartmental f… | 2002 |
What descends from it? (52)
See all 5218 later devices cite it directly; ranked here by how many devices descend from each in turn.
| Number | Device | Decided | Descendants |
|---|---|---|---|
| K102437 | GMK Revision Knee System | 2010 | 34 |
| K103170 | GMK Revision Knee SC Liners | 2011 | 28 |
| K113571 | GMK Resufacing Patella Size 4 | 2012 | 23 |
| K121416 | GMK Sphere | 2012 | 20 |
| K140826 | GMK Sphere Extension | 2014 | 17 |
| K093806 | Myknee Cutting Blocks | 2010 | 16 |
| K120790 | GMK - Line Extension | 2012 | 11 |
| K122232 | GMK Narrow | 2012 | 8 |
| K142069 | GMK Extension | 2014 | 4 |
| K202684 | GMK Total Knee System - TiNbN Coating | 2020 | 3 |
Has anything in its family been recalled? (0 Class I)
Recalls of this device
| Date | Class | Recall | Root cause | Reason |
|---|---|---|---|---|
| Oct 24, 2017 | Class II | Z-0266-2018 | Device Design | Medacta has observed a worldwide occurrence rate of post-operative insert screw back-out of approximately 0.1%. For this reason, we stress the importance of using the 3.5 Nm torque limiting driver if the screw is used, as directed in our… |
No ancestor or descendant has a Class I recall.
What does this lineage say?
- The line of descent spans 15 years and passes through 6 companies; a new generation was cleared every 1.8 years on median.
- 36 of the 83 ancestors have a recall of any class.
- Of its descendants, K102437 (Medacta International S.A., 2010) has gone furthest, with 34 descendants of its own.
- 8 other devices also cite its predicate K081023.
How does its category compare?
All JWH devicesJWH Prosthesis, Knee, Patellofemorotibial, Semi-Constrained, Cemented, Polymer/Metal/Polymer: FDA decisions, review times, recalls and adverse event reports over 20 years. 2009, this device’s year, is highlighted.
FDA decisions per year · JWH
20in 2025
2026 to Oct 25, outlined.
Median 510(k) review, days · JWH
55in 2025
Receipt to decision; years with fewer than 3 clearances left blank.
Recalls per year · JWH
2in 2025
Class I (0 since 2007) Class II/III not classified
Adverse event reports per year · JWH
9,306in 2025
MAUDE reports naming product code JWH, 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 | 18 | 74 | 14 | 1,305 |
| 2008 | 17 | 81 | 10 | 1,483 |
| 2009 | 11 | 168 | 109 | 1,870 |
| 2010 | 19 | 85 | 32 | 3,286 |
| 2011 | 25 | 87 | 27 | 5,133 |
| 2012 | 33 | 85 | 85 | 5,203 |
| 2013 | 31 | 128 | 31 | 6,135 |
| 2014 | 33 | 98 | 13 | 6,722 |
| 2015 | 27 | 87 | 11 | 6,881 |
| 2016 | 18 | 88 | 17 | 7,586 |
| 2017 | 25 | 118 | 61 | 12,263 |
| 2018 | 25 | 90 | 14 | 14,071 |
| 2019 | 28 | 133 | 5 | 14,987 |
| 2020 | 22 | 59 | 2 | 12,592 |
| 2021 | 24 | 61 | 8 | 9,408 |
| 2022 | 17 | 56 | 12 | 8,364 |
| 2023 | 20 | 57 | 67 | 8,947 |
| 2024 | 19 | 89 | 7 | 10,828 |
| 2025 | 20 | 55 | 2 | 9,306 |
| 2026 | 12 | 63 | 4 | — |
What is it indicated for?
The GMK® Total Knee System is designed for cemented use in total knee arthroplasty, if there is evidence of sufficient sound bone to seat and support the components.
This knee replacement system is indicated in the following cases:
· Severely painful and/or disabled joint as a result of arthritis, traumatic arthritis, rheumatoid arthritis or polyarthritis
· avascular necrosis of femoral condyle
· post traumatic loss of joint configuration
· primary implantation failure.
Indications for use as stated in the FDA summary.
https://510kreport.com/device/K090988 · printed Nov 4, 2026
Cite this page
510(k) Report. “K090988: GMK Total Knee System.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 4, 2026. https://510kreport.com/device/K090988
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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