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Additive Manufacturing: The Next Generation of Scapholunate Ligament Reconstruction
Matthew N Rush1, Christina Salas1,2,3, Lorraine Mottishaw1,2
1Department of Orthopaedics and Rehabilitation, The University of New Mexico Health Sciences Center, Albuquerque, New Mexico.
Journal of Wrist Surgery
|December 9, 2021
Summary
Tissue engineered scaffolds using 3D printing and electrospinning show promise for nonautograft ligament reconstruction. Hybrid biofabrication techniques are advancing the development of bone-ligament interfaces for improved joint stabilization.
Area of Science:
- Biomaterials Engineering
- Tissue Engineering
- Orthopedic Surgery
Background:
- Ligament reconstruction aims to restore joint stability but faces challenges with current materials.
- Historical reconstructive materials struggle with physiological loads and native tissue integration.
- Successful nonautograft reconstruction remains elusive due to these limitations.
Purpose of the Study:
- To review advancements in additive manufacturing and biomaterials for ligament replacement.
- To explore hybrid biofabrication for creating bone-ligament enthesis.
- To discuss requirements for a successful bone-ligament-bone interface.
Main Methods:
- Review of recent improvements in additive manufacturing (3D printing, electrospinning).
- Discussion of biomaterials suitable for ligament tissue engineering.
- Analysis of hybrid biofabrication techniques for scaffold creation.
Main Results:
- Combined 3D printing and electrospinning offer nonautograft options meeting physiological demands.
- Hybrid biofabrication enables simultaneous deposition of disparate materials for better integration.
- Advancements address chemical, biological, and mechanical needs for bone-ligament interfaces.
Conclusions:
- Tissue-engineered bone-ligament scaffolds show potential for clinical application.
- Continued progress in additive manufacturing and biomaterials is key.
- Future developments may enable successful nonautograft ligament reconstruction.
