Related Experiment Video
Updated: Feb 23, 2026
Surgical Technique for the Implantation of a Biomimetic Artificial Intervertebral Disc in a Goat Animal Model
Published on: October 10, 2025
Biomimetic nanofibers can construct effective tissue-engineered intervertebral discs for therapeutic implantation
Junchuan Yang1, Xinglong Yang, Le Wang
1National Engineering Research Center for Nano-Medicine, Department of Biomedical Engineering, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074, China. yang_sunny@yahoo.com.
Abstract:
We present a total tissue engineered (TE) intervertebral disc (IVD) to address IVD degradation, which is a major cause of chronic neck and back pain. The TE IVD is comprised of an alginate hydrogel-based nucleus pulposus (NP) and hierarchically organized, concentric ring-aligned electrospun (ES) polycaprolactone (PCL)/poly (d,l-lactide-co-glycolide) (PLGA)/Collagen type I (PPC)-based annulus fibrosus (AF). The TE IVD exhibits excellent hydrophilicity to simulate highly hydrated native IVD. Long-term in vivo implantation assays demonstrate the excellent structural (shape maintenance, hydration, and integration with surrounding tissues) and functional (mechanical supporting and flexibility) performances of the TE IVD. Our study provides a novel approach for treating IVD degeneration.
