510(k) · Cleared
ClearedUnicompartmental Knee
Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly
Valpo Orthopedic Technology, Inc. · HRY Prosthesis, Knee, Femorotibial, Semi-Constrained, Cemented, Metal/Polymer
Cleared on Feb 19, 2008 as substantially equivalent to K971938 (Biomet, Inc., 1997) and 5 other predicates after a 148-day review. Its family tree reaches back 2 generations to 1997.
- Decided
- Feb 19, 2008
- Review
- 148 days
- Class
- Class II
- Product code
- HRY
- Recalls
- None
- Predicates
- 6
Its longest line of descent runs back 2 generations to K971938 (1997). 11 ancestors in all, the oldest K880155 (1988). No later device cites it as a predicate yet.
View FIG. 1 as a table
Line of descent and top descendants
| Generation | Number | Device | Applicant | Decided | Recalls |
|---|---|---|---|---|---|
| −2 | K971938 | Repicci II Unicondylar Knee | Biomet, Inc. | 1997 | 1 |
| −1 | K020264 | Repicci II Unicondylar Knee System | Biomet Orthopedics, Inc. | 2002 | — |
| 0 (this device) | K072704 | Unicompartmental Knee | Valpo Orthopedic Technology, Inc. | 2008 | — |
Other ancestors by year cleared
| Year cleared | Devices | With a Class I recall |
|---|---|---|
| 1988 | 1 | 0 |
| 1993 | 1 | 0 |
| 1996 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2001 | 1 | 0 |
| 2004 | 2 | 0 |
| 2006 | 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 HRY? 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 HRY device
- #1 K193549 SIGMA High Performance (HP) Partial Knee Systemscore 0.4 · 5 generations · no Class I recall
What was it cleared against? (6)
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 |
|---|---|---|---|
| * | K971938 | Repicci II Unicondylar KneeSummary page 1…Prosthesis (21 CFR 888.3530) 6. Legally Marketed Devices to which Substantial Equivalence is Claimed: a. Repicci II Unicompartmental Knee. (K971938) b. Zimmer Unicompartmental Knee System (K033363) c. Miller /Galante Precoat Unicompartmental Knee (I<010… | 1997 |
| * | K033363 | Zimmer Unicompartmental Knee SystemSummary page 1…keted Devices to which Substantial Equivalence is Claimed: a. Repicci II Unicompartmental Knee. (K971938) b. Zimmer Unicompartmental Knee System (K033363) c. Miller /Galante Precoat Unicompartmental Knee (I<010685) d. EIUS Unicompartmental Knee System -(K0337… | 2004 |
| * | K010685 | Modification to Miller/Galante Precoat Unicompartmental Knee System (8 MM Articular…Summary page 1…Repicci II Unicompartmental Knee. (K971938) b. Zimmer Unicompartmental Knee System (K033363) c. Miller /Galante Precoat Unicompartmental Knee (I<010685) d. EIUS Unicompartmental Knee System -(K033769) e. Active Unicompartmental Knee System (K060412)… | 2001 |
| * | K033769 | Eius Unicompartmental Knee SystemSummary page 1…Zimmer Unicompartmental Knee System (K033363) c. Miller /Galante Precoat Unicompartmental Knee (I<010685) d. EIUS Unicompartmental Knee System -(K033769) e. Active Unicompartmental Knee System (K060412) f. Repicci II Unicondylar Knee System-(l(020264)… | 2004 |
| * | K060412 | Active Unicompartmental Knee SystemSummary page 1…/Galante Precoat Unicompartmental Knee (I<010685) d. EIUS Unicompartmental Knee System -(K033769) e. Active Unicompartmental Knee System (K060412) f. Repicci II Unicondylar Knee System-(l(020264) 7. Device Description: The VOT Uni Knee consists of a f… | 2006 |
| * | K020264 | Repicci II Unicondylar Knee SystemSummary page 1…EIUS Unicompartmental Knee System -(K033769) e. Active Unicompartmental Knee System (K060412) f. Repicci II Unicondylar Knee System-(l(020264) 7. Device Description: The VOT Uni Knee consists of a femoral and a tibial component. The low profiled prosth… | 2002 |
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 11 years and passes through 3 companies; a new generation was cleared every 6.0 years on median.
- 5 of the 11 ancestors have a recall of any class.
- 13 other devices also cite its predicate K971938.
How does its category compare?
All HRY devicesHRY Prosthesis, Knee, Femorotibial, Semi-Constrained, Cemented, Metal/Polymer: FDA decisions, review times, recalls and adverse event reports over 20 years. 2008, this device’s year, is highlighted.
FDA decisions per year · HRY
1in 2020
2026 to Oct 25, outlined.
Median 510(k) review, days · HRY
138in 2008
Receipt to decision; years with fewer than 3 clearances left blank.
Recalls per year · HRY
3in 2022
Class I (0 since 2007) Class II/III not classified
Adverse event reports per year · HRY
290in 2025
MAUDE reports naming product code HRY, 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 | 3 | 92 | 1 | 263 |
| 2008 | 3 | 138 | 1 | 285 |
| 2009 | 0 | — | 0 | 249 |
| 2010 | 1 | — | 0 | 180 |
| 2011 | 1 | — | 1 | 155 |
| 2012 | 1 | — | 0 | 137 |
| 2013 | 1 | — | 1 | 383 |
| 2014 | 1 | — | 0 | 305 |
| 2015 | 1 | — | 0 | 345 |
| 2016 | 1 | — | 1 | 343 |
| 2017 | 0 | — | 0 | 402 |
| 2018 | 0 | — | 0 | 613 |
| 2019 | 1 | — | 0 | 367 |
| 2020 | 1 | — | 1 | 1,054 |
| 2021 | 0 | — | 1 | 1,218 |
| 2022 | 0 | — | 3 | 840 |
| 2023 | 0 | — | 0 | 396 |
| 2024 | 0 | — | 0 | 430 |
| 2025 | 0 | — | 0 | 290 |
| 2026 | 0 | — | 0 | — |
What is it indicated for?
The Unicompartmental Knee is indicated for:
The Unicompartmental Knee is solely indicated for medial compartment replacement of the articulating surface of the knee when only one side of the joint is affected due to compartmental primary degenerative or post-traumatic degenerative disease, previous tibial condyle or plateau fractures, deformity or revision of previous arthroplasty procedures. This device is intended for cemented use only.
Indications for use as stated in the FDA summary.
https://510kreport.com/device/K072704 · printed Nov 4, 2026
Cite this page
510(k) Report. “K072704: Unicompartmental Knee.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 4, 2026. https://510kreport.com/device/K072704
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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