# K073570: Depuy Tri-Lock Bone Preservation Stem

- Pathway: 510(k) (Special)
- Applicant: DePuy Orthopaedics, Inc.
- Decided: Feb 21, 2008 after 63 days
- Product code: LZO (Prosthesis, Hip, Semi-Constrained, Metal/Ceramic/Polymer, Cemented Or Non-Porous, Uncemented)
- Device class: 2
- Regulation: 21 CFR 888.3353
- Recalls of this device: none
- Data: FDA decisions to Oct 25, 2026; recalls to Oct 12, 2026

## Lineage
No predicates in its family tree.
20 later devices descend from it; 4 cite it directly.
0 of 21 devices in its family (counting itself) have a Class I recall.

## Predicates on the family tree (from the FDA summary)
- None. FDA has not posted a summary or statement for it, so its predicates are not known.

## Most influential descendants
- K121563: Corin Trifit TS Hip (2012), 10 descendants of its own
- K231873: DePuy SUMMIT Porocoat Hip Prosthesis – MR Conditional, DePuy SUMMIT DuoFix Hip Prosthesis – MR Conditional, DePuy SUMMIT Cemented Hip Prosthesis – MR Conditional, DePuy SUMMIT FX Cemented Hip Prosthesis – MR Conditional, DePuy SUMMIT Basic Press-Fit Hip Prosthesis – MR Conditional (2024), 5 descendants of its own
- K153381: Corin Metafix Hip Stem (2016), 5 descendants of its own
- K153772: Corin TriFit TS Hip (2016), 4 descendants of its own
- K173880: Corin TriFit CF Hip Stem (2018), 3 descendants of its own

Source page: https://510kreport.com/device/K073570
Methodology: https://510kreport.com/methodology