510(k) · Cleared
ClearedXO1 Knee Balancing System
Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly
Xpandortho, Inc. · ONN Intraoperative Orthopedic Joint Assessment Aid
Cleared on Apr 25, 2017 after a 259-day review. FDA’s file for it is a 510(k) statement, which names no predicate.
- Decided
- Apr 25, 2017
- Review
- 259 days
- Class
- Class II
- Product code
- ONN
- Recalls
- None
- Predicates
- 0
FDA’s file for it is a 510(k) statement, which names no predicate.
Sources: FDA 510(k) database (decision fields), the FDA 510(k) statement (indications), FDA recall and enforcement reports, and MAUDE; processed by 510(k) Report. Verify on FDA.gov · Methodology and accuracy.
Planning a device in ONN? 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 ONN device
- #1 K262253 Lantern Knee Navigation Unit…score 16.0 · 15 generations · no Class I recall
- #2 Held for the reportin the report
- #3 Held for the reportin the report
What was it cleared against?
FDA’s file for it is a 510(k) statement, which names no predicate.
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 ONN devicesONN Intraoperative Orthopedic Joint Assessment Aid: FDA decisions, review times, recalls and adverse event reports over 20 years. 2017, this device’s year, is highlighted.
FDA decisions per year · ONN
1in 2025
2026 to Oct 25, outlined.
Median 510(k) review, days · ONN
100in 2020
Receipt to decision; years with fewer than 3 clearances left blank.
Recalls per year · ONN
6in 2018
Class I (0 since 2007) Class II/III not classified
Adverse event reports per year · ONN
5in 2025
MAUDE reports naming product code ONN, 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 | 1 | — | 0 | 0 |
| 2008 | 0 | — | 0 | 0 |
| 2009 | 1 | — | 0 | 0 |
| 2010 | 0 | — | 0 | 0 |
| 2011 | 1 | — | 0 | 0 |
| 2012 | 0 | — | 1 | 0 |
| 2013 | 2 | — | 0 | 0 |
| 2014 | 1 | — | 1 | 0 |
| 2015 | 0 | — | 0 | 0 |
| 2016 | 1 | — | 0 | 1 |
| 2017 | 1 | — | 0 | 0 |
| 2018 | 1 | — | 6 | 0 |
| 2019 | 0 | — | 0 | 0 |
| 2020 | 3 | 100 | 0 | 0 |
| 2021 | 0 | — | 0 | 0 |
| 2022 | 1 | — | 0 | 0 |
| 2023 | 0 | — | 0 | 0 |
| 2024 | 2 | — | 0 | 0 |
| 2025 | 1 | — | 0 | 5 |
| 2026 | 2 | — | 0 | — |
What is it indicated for?
The XO1 Knee Balancing System is intended for use as a tool for adjustment of soft tissue to reduce instability from flexion gap asymmetry in total knee replacement procedures.. The XO1 Knee Balancing System requires a resected tibial bone and may only be used with an intact femur, trial femoral component or the femoral implant. The force sensor is sterile, for single patient use.
Indications for use as stated in the FDA 510(k) statement.
https://510kreport.com/device/K162237 · printed Nov 5, 2026
Cite this page
510(k) Report. “K162237: XO1 Knee Balancing System.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 5, 2026. https://510kreport.com/device/K162237
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Record history
- FDA decision record loaded May 2, 2026
- Summary read Oct 13, 2026 (extraction version 9eaa42aa01ed)
- Page last updated Nov 3, 2026