MOSCOW, Feb. 19 (Xinhua) -- Researchers at Moscow Aviation Institute (MAI) have developed improved flexible spinal implants based on titanium alloys that can help preserve natural spinal mobility after surgery, the institute's press service said Thursday.
The MAI team focused on next-generation implants using nickel-titanium alloy, or nitinol, which is known for its shape-memory effect and high elasticity.
The material can return to its original form and better absorb mechanical loads, allowing the spine to retain a degree of natural movement.
"Preserving vertebral mobility increases stress on structural components, especially the rods, which may develop cracks due to microscopic movements at screw attachment points. In addition, implants operate in a physiological environment, which can lead to corrosion-mechanical damage and metal ion release into the surrounding tissues. Our work aims to address these challenges," said Elena Lukina, an associate professor at MAI. ■