FDA Product Code JWH: Prosthesis, Knee, Patellofemorotibial, Semi-constrained, Cemented, Polymer/metal/polymer

Total knee replacement is one of the most common orthopedic procedures in the United States. FDA product code JWH covers semi-constrained patellofemorotibial knee prostheses — implants that replace the articular surfaces of the femur, tibia, and patella to restore pain-free mobility.

These systems are designed to replicate the biomechanics of the natural knee while providing long-term stability. They are used in patients with advanced osteoarthritis, rheumatoid arthritis, or post-traumatic joint damage.

JWH devices are Class II medical devices, regulated under 21 CFR 888.3560 and reviewed by the FDA Orthopedic panel.

Leading manufacturers include Zimmer, Inc., Smith & Nephew, Inc. and Howmedica Corp..