# K052079: Pinnacle Constrained Acetabular Liners

- Pathway: 510(k) (Traditional)
- Applicant: DePuy Orthopaedics, Inc.
- Decided: Oct 21, 2005 after 80 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
No predicates in its family tree.
7 later devices descend from it; 3 cite it directly.
0 of 8 devices in its family (counting itself) have a Class I recall.

## Predicates on the family tree (from the FDA summary)
- None. The FDA summary names its predicate without a number.
- (no number) Osteonics Constrained Acetabular Inserts: named in the summary without a submission number
- (no number) DePuy Pinnacle Constrained Acetabular Liners: named in the summary without a submission number

## Most influential descendants
- K071117: Modification to Pinnacle Constrained Acetabular Liners (2007), 6 descendants of its own
- K153131: Logical C-Series Acetabular Shell, Logical Constrained Liner, Logical Constrained Liner Collar, Logical 20° Hooded Acetabular Liner (2016), 4 descendants of its own
- K241690: Logical Liner; World Liner; World Knee Patella (2024), 2 descendants of its own
- K252824: Evolve AP Cup, World Finned Cup, World G-Zero Liner and Oddball Femoral Head (2026), 0 descendants of its own
- K243162: World Liner (2024), 0 descendants of its own

## Indications for use
The Pinnacle Constrained Acetabular Liner is indicated for use as a component of a total hip prosthesis in primary or revision patients at high risk of hip dislocation due to a history of prior dislocation, bone loss, joint or soft tissue laxity, neuromuscular disease or intraoperative instability. The Pinnacle Constrained Acetabular Liner is indicated for use with the Pinnacle Acetabular Cup in cementless application.

Source page: https://510kreport.com/device/K052079
Methodology: https://510kreport.com/methodology