# K971789: Implex Continuum Porous Patellar

- Pathway: 510(k) (Traditional)
- Applicant: Implex Corp.
- Decided: Jul 24, 1997 after 71 days
- Product code: JWH (Prosthesis, Knee, Patellofemorotibial, Semi-Constrained, Cemented, Polymer/Metal/Polymer)
- Device class: 2
- Regulation: 21 CFR 888.3560
- Recalls of this device: none
- Data: FDA decisions to Oct 25, 2026; recalls to Oct 12, 2026

## Lineage
Longest line of descent: 1 generation back to K882322 (1989). 3 ancestors in all.
1 later device descends from it; 1 cites 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)
- K882322: Continuum Knee System (CKS), Buckman Co., Inc. (1989) Summary page 1.
- K890132: Porous Genesis Patellar and Stemless Tibial Comp., Richards Medical Co., Inc. (1989) Summary page 1.
- K961482: Duracon Inset Patella with Central Peg, Howmedica Corp. (1996) Summary page 1.

## Most influential descendants
- K983835: Implex Continuum Patella-Revision Hedrocel Patella (1999), 0 descendants of its own

## Indications for use
The Implex Continuum Porous Patellar is intended as the patellar component of the Continuum Knee System whose indications for use include: 1) noninflamatory degenerative joint disease including osteoarthritis or traumatic arthritis, 2) rheumatoid arthritis, 3) correction of functional deformity, 4) revision procedures where other treatments or devices have failed, and 5) treatment of fractures that are unmanageable using other techniques. This device is intended for use with bone cement.

Source page: https://510kreport.com/device/K971789
Methodology: https://510kreport.com/methodology