The use of implants made from different materials in lumbar spinal fusion surgery (review)

Objective: perform a comparative analysis of the osteointegration of intervertebral implants made of polyetheretherketone (PEEK), titanium (Ti) alloy and porous Ti after posterior lumbar interbody fusion. Methodology for writing a review. The interbody fusion, lumbar spine, cage, orthopedic implants, osseointegration, porous titanium keywords search for 1953-2023 studies in English and Russian involved PubMed and eLibrary databases. Results. Titanium and titanium-coated PEEK implants for lumbar interbody fusion feature similar subsidence rates, but titanium implants have a higher fusion rate thanthose of PEEK implants. Conclusion. Ti-cages and Ti-coated PEEK implants used for interbody spinal fusion in the lumbar spine show similar subsidence rates but higher fusion rates compared to PEEK cages. Randomized controlled trials are needed to more accurately assess the impact of framework materials and potential factors that may influence surgical outcomes.