# K091508: Zimmer Continuum Acetabular System, Zimmer Trilogy IT Acetabular System

- Pathway: 510(k) (Traditional)
- Applicant: Zimmer, Inc.
- Decided: Sep 11, 2009 after 112 days
- Product code: LPH (Prosthesis, Hip, Semi-Constrained, Metal/Polymer, Porous Uncemented)
- Device class: 2
- Regulation: 21 CFR 888.3358
- Recalls of this device: 3 (0 Class I)
- Data: FDA decisions to Oct 25, 2026; recalls to Oct 12, 2026

## Lineage
Longest line of descent: 2 generations back to K934765 (1994). 6 ancestors in all.
246 later devices descend from it; 18 cite it directly.
0 of 253 devices in its family (counting itself) have a Class I recall.

## Predicates on the family tree (from the FDA summary)
- K021891: Zimmer Trabecular Metal Modular Acetabular System, Zimmer, Inc. (2002) Summary page 1.
- K934765: Trilogy Acetabular System, Zimmer, Inc. (1994) Summary page 1.
- K012739: Converge Acetabular System, Sulzer Orthopedics, Inc. (2001)
- K002960: Trilogy Acetabular System Large Head Liner, Model 6353, Zimmer, Inc. (2000) Summary page 1.
- K003478: Triology Acetabular System 46MM Large Head Liners, Model 6310, Zimmer, Inc. (2001) Summary page 1.

## Most influential descendants
- K093846: Longevity IT Highly Crosslinked Polyethylene Elevated Liners (2010), 144 descendants of its own
- K101229: Longevity IT Highly Crosslinked Polyethylene Elevated Liners, Continuum Acetabular System and Trilogy Integrated Taper (2010), 143 descendants of its own
- K103662: Continuum and Trilogy Integrated Taper (IT) Acetabular Systems; Longevity IT Highly Crosslinked Polyethylene Elevated LI (2011), 137 descendants of its own
- K110087: Corin Trinity Acetbular System with Hxlpe Liners (2011), 109 descendants of its own
- K120370: Vivacit-E Vitamin E Highly Crosslinked Polyethylene Liners (2012), 88 descendants of its own

## Recalls of this device
- Oct 1, 2014 · Class II · Z-0094-2015: The affected products are missing polar boss threads.
- Mar 19, 2010 · Not classified · Z-0072-2011: The firm has received reports of users encountering difficulties in usage leading to surgical delays or minor damage to a threaded surface of the shell implant.
- Mar 19, 2010 · Not classified · Z-0071-2011: The firm has received reports of users encountering difficulties in usage leading to surgical delays or minor damage to a threaded surface of the shell implant.

## Indications for use
The Continuum and Trilogy IT Acetabular Systems are indicated for primary or revision surgery for rehabilitating hips damaged as a result of noninflammatory degenerative joint disease (NIDJD) or its composite diagnoses of osteoarthritis, avascular necrosis, protrusio acetabuli, traumatic arthritis, slipped capital epiphysis, fused hip, fracture of the pelvis, and diastrophic variant. The devices are intended for use either with or without bone cement.

Source page: https://510kreport.com/device/K091508
Methodology: https://510kreport.com/methodology