High-performance hydrogels in orthopedics: Structural design, performance tuning, and clinical potential

Area of Science:

• Biomaterials Science
• Orthopedic Engineering
• Polymer Chemistry

Background:

• Orthopedic diseases present significant clinical challenges.
• Hydrogels possess properties suitable for orthopedic applications, mimicking bone tissue.
• Traditional treatments often fall short for complex orthopedic conditions.

Purpose of the Study:

• To systematically review hydrogel design principles for orthopedic applications.
• To explore current and potential uses of hydrogels in orthopedics.
• To identify challenges and future directions for hydrogel clinical translation in orthopedics.

Main Methods:

• Systematic review of literature on hydrogel design and orthopedic applications.
• Analysis of material selection, structural regulation, cross-linking, and functional modification strategies.
• Examination of hydrogel performance in bone defect repair, spinal fusion, fracture healing, infection control, and cartilage regeneration.

Main Results:

• Hydrogels demonstrate potential in bone defect repair, spinal fusion, fracture healing, infection control, and cartilage regeneration.
• Key challenges include insufficient mechanical strength and mismatched degradation rates for bone regeneration.
• Integration with 3D printing, smart systems, and gene therapy presents future opportunities.

Conclusions:

• Hydrogels are versatile biomaterials for orthopedic applications.
• Addressing mechanical and degradation challenges is crucial for clinical success.
• Future research should focus on advanced integration strategies for enhanced orthopedic treatments.