# K894403: Pca Modular Knee Constrained Tibial Insert

- Pathway: 510(k) (Traditional)
- Applicant: Howmedica Corp.
- Decided: Feb 2, 1990 after 200 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: 4 (0 Class I)
- Data: FDA decisions to Oct 25, 2026; recalls to Oct 12, 2026

## Lineage
No predicates in its family tree.
No later device cites it as a predicate yet.
0 of 1 device 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.

## Recalls of this device
- Dec 1, 2023 · Class II · Z-0919-2024: Product manufactured using UHMWPE raw material over 5 years of age has the potential for elevated levels of oxidation. Oxidation within UHMWPE can have an impact on its material properties.
- Dec 1, 2023 · Class II · Z-0922-2024: Product manufactured using UHMWPE raw material over 5 years of age has the potential for elevated levels of oxidation. Oxidation within UHMWPE can have an impact on its material properties.
- Dec 1, 2023 · Class II · Z-0920-2024: Product manufactured using UHMWPE raw material over 5 years of age has the potential for elevated levels of oxidation. Oxidation within UHMWPE can have an impact on its material properties.
- Dec 1, 2023 · Class II · Z-0921-2024: Product manufactured using UHMWPE raw material over 5 years of age has the potential for elevated levels of oxidation. Oxidation within UHMWPE can have an impact on its material properties.

Source page: https://510kreport.com/device/K894403
Methodology: https://510kreport.com/methodology