FDA Product Code LZO: Prosthesis, Hip, Semi-constrained, Metal/ceramic/polymer, Cemented Or Non-porous, Uncemented

Hip replacement surgery restores mobility and eliminates pain in patients with advanced joint disease. FDA product code LZO covers semi-constrained hip prostheses with metal, ceramic, or polymer bearing surfaces.

These implants replace the femoral head and acetabular socket with engineered bearing couples designed to minimize wear and maximize longevity. Material combinations include metal-on-polyethylene, ceramic-on-ceramic, and ceramic-on-polyethylene.

LZO devices are Class II medical devices, regulated under 21 CFR 888.3353 and reviewed by the FDA Orthopedic panel.

Leading manufacturers include Smith & Nephew, Inc., Howmedica Osteonics Corp. and Medacta International S.A..