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 Conformis, Inc., Maxx Orthopedics, Inc. and Smith & Nephew, Inc..