# K101730: Longevity IT Highly Crosslinked Polyethylene Constrained Liners

- Pathway: 510(k) (Traditional)
- Applicant: Zimmer, Inc.
- Decided: Dec 3, 2010 after 168 days
- Product code: KWZ (Prosthesis, Hip, Constrained, Cemented Or Uncemented, Metal/Polymer)
- Device class: 2
- Regulation: 21 CFR 888.3310
- Recalls of this device: none
- Data: FDA decisions to Oct 25, 2026; recalls to Oct 12, 2026

## Lineage
Longest line of descent: 4 generations back to P960047 (1997). 12 ancestors in all.
2 later devices descend from it; 1 cites it directly.
0 of 15 devices in its family (counting itself) have a Class I recall.

## Predicates on the family tree (from the FDA summary)
- K071718: Trilogy Longevity Constrained Liner, Zimmer, Inc. (2007) Summary page 1.
- K091508: Zimmer Continuum Acetabular System, Zimmer Trilogy IT Acetabular System, Zimmer, Inc. (2009) Summary page 1.

## Most influential descendants
- K200823: Zimmer, Inc. Hip Joint Prostheses MR Labeling I (2020), 1 descendant of its own
- K250834: Zimmer Biomet Ceramic Heads (22.2mm diameter) (2025), 0 descendants of its own

## Indications for use
The Longevity IT Constrained Liner is indicated as a component of a total hip prosthesis in primary or revision total hip arthroplasties where there is a high risk of hip dislocation due to a history of instability, bone loss, joint, muscle or tissue laxity, or disease condition. This device is intended for patients for whom all other options to constrained acetabular components have been considered.

Source page: https://510kreport.com/device/K101730
Methodology: https://510kreport.com/methodology