# K881779: Whiteside Ortholoc II Unicondylar Knee System

- Pathway: 510(k) (Traditional)
- Applicant: Dow Corning Wright
- Decided: Aug 31, 1988 after 127 days
- Product code: HSX (Prosthesis, Knee, Femorotibial, Non-Constrained, Cemented, Metal/Polymer)
- Device class: 2
- Regulation: 21 CFR 888.3520
- Recalls of this device: none
- Data: FDA decisions to Oct 25, 2026; recalls to Oct 12, 2026

## Lineage
No predicates in its family tree.
4 later devices descend from it; 2 cite it directly.
0 of 5 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
- K014171: Advance Unicondylar Knee System (2002), 3 descendants of its own
- K022211: HLS Uni Evolution Prosthesis (2003), 1 descendant of its own
- K120262: HLS Uni Evolution & U-Kneetec (2012), 0 descendants of its own
- K100973: Evolution Unicondylar Knee System (2010), 0 descendants of its own

Source page: https://510kreport.com/device/K881779
Methodology: https://510kreport.com/methodology