510(k) · Cleared
ClearedRanawat/Burstein Total Hip System
Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly
Biomet, Inc. · LPH Prosthesis, Hip, Semi-Constrained, Metal/Polymer, Porous Uncemented
Cleared on Feb 16, 1994 after a 701-day review. FDA has not posted a summary or statement for it, so its predicates are not known. 139 later devices descend from it.
- Decided
- Feb 16, 1994
- Review
- 701 days
- Class
- Class II
- Product code
- LPH
- Recalls
- None
- Predicates
- 0
139 later devices descend from it, 1 citing it directly.
- This deviceK921277 Ranawat/Burstein Total Hip SystemBiomet, Inc. · 1994
- Descendant · cites it directly · 138 of its ownK050124 Porous Coated Acetabular ComponentsBiomet, Inc. · 2005 · Recalled
- Descendant · 2 generations on · 137 of its ownK070369 Regenerx Ringloc + Modular Acetabular ShellsBiomet, Inc. · 2007 · Recalled
- Descendant · 3 generations on · 65 of its ownK093235 Ringloc + Hybrid Acetabular SystemBiomet, Inc. · 2010 · Recalled
- Descendant · 4 generations on · 53 of its ownK121874 G7 Acetabular SystemBiomet Manufacturing Corp · 2012 · Recalled
- Descendant · 3 generations on · 53 of its ownK112802 Pipeline Total Hip SystemPipeline Orthopedics · 2012
Showing 5 of 139 descendants. See all descendants
Descendants cleared per year
Most influential descendants
Showing 5 of 139 · See all- K050124Porous Coated Acetabular ComponentsBiomet, Inc. · 2005 · cites it directly138descendants
- K070369Regenerx Ringloc + Modular Acetabular ShellsBiomet, Inc. · 2007 · 2 generations on137descendants
- K093235Ringloc + Hybrid Acetabular SystemBiomet, Inc. · 2010 · 3 generations on65descendants
- K121874G7 Acetabular SystemBiomet Manufacturing Corp · 2012 · 4 generations on53descendants
- K112802Pipeline Total Hip SystemPipeline Orthopedics · 2012 · 3 generations on53descendants
View FIG. 1 as a table
Line of descent and top descendants
| Generation | Number | Device | Applicant | Decided | Recalls |
|---|---|---|---|---|---|
| 0 (this device) | K921277 | Ranawat/Burstein Total Hip System | Biomet, Inc. | 1994 | — |
| +1 | K050124 | Porous Coated Acetabular Components | Biomet, Inc. | 2005 | 1 |
| +2 | K070369 | Regenerx Ringloc + Modular Acetabular Shells | Biomet, Inc. | 2007 | 19 |
| +3 | K093235 | Ringloc + Hybrid Acetabular System | Biomet, Inc. | 2010 | 30 |
| +4 | K121874 | G7 Acetabular System | Biomet Manufacturing Corp | 2012 | 3 |
| +3 | K112802 | Pipeline Total Hip System | Pipeline Orthopedics | 2012 | — |
Descendants by year cleared
| Year cleared | Devices | With a Class I recall |
|---|---|---|
| 2005 | 1 | 0 |
| 2007 | 1 | 0 |
| 2010 | 1 | 0 |
| 2012 | 6 | 0 |
| 2013 | 5 | 0 |
| 2014 | 8 | 0 |
| 2015 | 5 | 0 |
| 2016 | 6 | 0 |
| 2017 | 6 | 0 |
| 2018 | 6 | 0 |
| 2019 | 18 | 0 |
| 2020 | 6 | 0 |
| 2021 | 7 | 0 |
| 2022 | 12 | 0 |
| 2023 | 12 | 0 |
| 2024 | 12 | 0 |
| 2025 | 11 | 0 |
| 2026 | 16 | 0 |
Sources: FDA 510(k) database (decision fields), FDA recall and enforcement reports, and MAUDE; processed by 510(k) Report. Verify on FDA.gov · Methodology and accuracy.
Planning a device in LPH? 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 LPH device
- #1 K233498 Stryker Orthopaedics Hip Systems Labeling Updatescore 24.2 · 20 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 has not posted a summary or statement for it, so its predicates are not known.
What descends from it? (139)
See all 1391 later device cites it directly; ranked here by how many devices descend from each in turn.
| Number | Device | Decided | Descendants |
|---|---|---|---|
| K050124 | Porous Coated Acetabular Components | 2005 | 138 |
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?
- Of its descendants, K050124 (Biomet, Inc., 2005) has gone furthest, with 138 descendants of its own.
How does its category compare?
All LPH devicesLPH Prosthesis, Hip, Semi-Constrained, Metal/Polymer, Porous Uncemented: FDA decisions, review times, recalls and adverse event reports over 20 years.
FDA decisions per year · LPH
12in 2025
2026 to Oct 25, outlined.
Median 510(k) review, days · LPH
153in 2025
Receipt to decision; years with fewer than 3 clearances left blank.
Recalls per year · LPH
4in 2025
Class I (0 since 2007) Class II/III not classified
Adverse event reports per year · LPH
6,163in 2025
MAUDE reports naming product code LPH, 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 | 116 | 16 | 509 |
| 2008 | 10 | 86 | 1 | 706 |
| 2009 | 3 | 112 | 2 | 1,156 |
| 2010 | 15 | 100 | 22 | 2,007 |
| 2011 | 16 | 110 | 26 | 3,320 |
| 2012 | 25 | 76 | 30 | 3,785 |
| 2013 | 11 | 135 | 9 | 5,002 |
| 2014 | 20 | 129 | 3 | 5,163 |
| 2015 | 18 | 111 | 1 | 5,830 |
| 2016 | 10 | 150 | 8 | 4,900 |
| 2017 | 12 | 121 | 14 | 5,312 |
| 2018 | 9 | 145 | 2 | 5,954 |
| 2019 | 22 | 164 | 8 | 7,130 |
| 2020 | 7 | 164 | 6 | 5,429 |
| 2021 | 8 | 410 | 4 | 5,978 |
| 2022 | 14 | 247 | 2 | 5,223 |
| 2023 | 10 | 111 | 2 | 5,345 |
| 2024 | 6 | 92 | 1 | 5,626 |
| 2025 | 12 | 153 | 4 | 6,163 |
| 2026 | 8 | 256 | 2 | — |
https://510kreport.com/device/K921277 · printed Nov 5, 2026
Cite this page
510(k) Report. “K921277: Ranawat/Burstein Total Hip System.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 5, 2026. https://510kreport.com/device/K921277
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Record history
- FDA decision record loaded May 2, 2026
- Lineage and recalls computed Nov 3, 2026
- Page last updated Nov 3, 2026