# K920577: Howedica Zirconia Femoral Head

- Pathway: 510(k) (Traditional)
- Applicant: Howmedica Corp.
- Decided: May 15, 1992 after 95 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.
2 later devices descend from it; 1 cites it directly.
0 of 3 devices in its family (counting itself) have a Class I recall.

## Predicates on the family tree (from the FDA summary)
- None. FDA lists a 510(k) statement for it but has not posted the file, so its predicates are not known.

## Most influential descendants
- K972361: V40 Zirconia Femoral Heads (1997), 1 descendant of its own
- K993889: Exeter Ceramic Femoral Heads (2000), 0 descendants of its own

Source page: https://510kreport.com/device/K920577
Methodology: https://510kreport.com/methodology