The Growing Use of Motion-Preservation Spine Devices
Motion-preservation devices are reshaping the philosophy of spine care. Traditional fusions eliminate pain by stopping movement at a problematic level but may increase stress on adjacent segments. Motion-preserving devices aim to maintain the spine’s natural biomechanics while alleviating symptoms.
Artificial discs are the most recognized motion-preservation devices. Made from combinations of metal, polymer, or ceramic materials, they are designed to replicate the disc’s cushioning and rotational capabilities. These implants are engineered to allow flexion, extension, and lateral bending similar to a healthy disc.
Dynamic stabilization devices represent another category. These systems use flexible rods, flexible spacers, or tension bands to support the spine without fully restricting motion. They help manage instability while preserving the natural kinematic chain.
Facet replacement devices are also gaining attention. These implants substitute damaged facet joints, restoring posterior motion and articulation. Their design requires precise engineering to function smoothly in concert with vertebral anatomy.
Motion-preservation devices…
