510(k) · Cleared
ClearedExeter Ceramic Femoral Heads
Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly
Howmedica Osteonics Corp. · LZO Prosthesis, Hip, Semi-Constrained, Metal/Ceramic/Polymer, Cemented Or Non-Porous, Uncemented
Cleared on Feb 11, 2000 as substantially equivalent to K972361 (Howmedica, Inc., 1997) and 1 other predicate after an 87-day review. Its family tree reaches back 2 generations to 1992.
- Decided
- Feb 11, 2000
- Review
- 87 days
- Class
- Class II
- Product code
- LZO
- Recalls
- None
- Predicates
- 2
Its longest line of descent runs back 2 generations to K920577 (1992). 4 ancestors in all, the oldest K891454 (1989). 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 | K920577 | Howedica Zirconia Femoral Head | Howmedica Corp. | 1992 | — |
| −1 | K972361 | V40 Zirconia Femoral Heads | Howmedica, Inc. | 1997 | — |
| 0 (this device) | K993889 | Exeter Ceramic Femoral Heads | Howmedica Osteonics Corp. | 2000 | — |
Other ancestors by year cleared
| Year cleared | Devices | With a Class I recall |
|---|---|---|
| 1989 | 1 | 0 |
| 1995 | 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 LZO? 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 LZO device
- #1 K192827 Quadra-Pscore 19.3 · 10 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 |
|---|---|---|---|
| * | K972361 | V40 Zirconia Femoral HeadsSummary page 1…ure or a revision of a failed femoral prosthesis. The Exeter Ceramic Femoral Heads described in this submission are a modification of a previously cleared Zirconia head (K972361) and Orthinox® head (K891454). The modification is a slight change In the taper angle of the device. The substantial equivalence… | 1997 |
| * | K891454 | Exeter II Total Hip SystemSummary page 1…femoral prosthesis. The Exeter Ceramic Femoral Heads described in this submission are a modification of a previously cleared Zirconia head (K972361) and Orthinox® head (K891454). The modification is a slight change In the taper angle of the device. The substantial equivalence is based on an equivalence i… | 1989 |
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 8 years and passes through 3 companies; a new generation was cleared every 5.4 years on median.
- None of the 4 ancestors has a recall.
How does its category compare?
All LZO devicesLZO Prosthesis, Hip, Semi-Constrained, Metal/Ceramic/Polymer, Cemented Or Non-Porous, Uncemented: FDA decisions, review times, recalls and adverse event reports over 20 years.
FDA decisions per year · LZO
14in 2025
2026 to Oct 25, outlined.
Median 510(k) review, days · LZO
119in 2025
Receipt to decision; years with fewer than 3 clearances left blank.
Recalls per year · LZO
1in 2025
Class I (0 since 2007) Class II/III not classified
Adverse event reports per year · LZO
3,244in 2025
MAUDE reports naming product code LZO, 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 | 9 | 87 | 2 | 138 |
| 2008 | 11 | 63 | 13 | 125 |
| 2009 | 7 | 83 | 42 | 189 |
| 2010 | 15 | 78 | 0 | 394 |
| 2011 | 13 | 87 | 10 | 544 |
| 2012 | 14 | 98 | 14 | 963 |
| 2013 | 26 | 100 | 0 | 1,370 |
| 2014 | 13 | 85 | 1 | 1,477 |
| 2015 | 12 | 115 | 1 | 1,348 |
| 2016 | 10 | 177 | 9 | 1,728 |
| 2017 | 16 | 257 | 5 | 2,165 |
| 2018 | 18 | 163 | 2 | 3,133 |
| 2019 | 28 | 109 | 4 | 3,066 |
| 2020 | 18 | 112 | 3 | 1,963 |
| 2021 | 12 | 170 | 0 | 2,199 |
| 2022 | 11 | 279 | 4 | 1,985 |
| 2023 | 10 | 122 | 2 | 2,066 |
| 2024 | 11 | 111 | 1 | 2,586 |
| 2025 | 14 | 119 | 1 | 3,244 |
| 2026 | 9 | 102 | 0 | — |
What is it indicated for?
The Exeter Ceramic Femoral Heads are intended to be used with modular femoral components in primary and secondary cemented or cementless total hip replacement procedures. These devices are intended to articulate with a polyethylene cup or a metal backed polyethylene cup component to reconstruct painful and/or severely disabled hip joints resulting from osteoarthritis, rheumatoid arthritis, post-traumatic arthritis, avascular necrosis, subcapital fracture, or a revision of a failed femoral prosthesis. The Exeter Ceramic Femoral Heads are intended to be used with the femoral components of the previously released Exeter hip stems - and Exeter II Total Hip System (K891454).
Indications for use read by OCR from a scanned FDA summary, so letters may be misread. Check the PDF before quoting it.
https://510kreport.com/device/K993889 · printed Nov 5, 2026
Cite this page
510(k) Report. “K993889: Exeter Ceramic Femoral Heads.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 5, 2026. https://510kreport.com/device/K993889
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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