Recent Developments and Current Applications of Hydrogels in Osteoarthritis

Area of Science:

• Biomaterials Science
• Regenerative Medicine
• Orthopedics

Background:

• Osteoarthritis (OA) is a prevalent degenerative joint disease leading to significant disability.
• Effective OA treatment necessitates advanced delivery systems to prevent therapeutic agent loss.
• Hydrogels serve as versatile platforms in tissue engineering for drug and cell delivery within joint cavities.

Purpose of the Study:

• To review the application of hydrogels in osteoarthritis treatment.
• To explore hydrogel-based drug delivery, stem cell entrapment, and cartilage regeneration strategies for OA.
• To highlight the benefits of hydrogel viscosupplementation for OA symptom management.

Main Methods:

• Review of recent studies on hydrogels and osteoarthritis.
• Analysis of hydrogel properties for drug retention and controlled release in joint cavities.
• Evaluation of hydrogels as scaffolds for mesenchymal stem cell loading, proliferation, and migration.
• Assessment of hydrogel-mediated cartilage and bone regeneration, including the role of biochemical properties and loaded factors.

Main Results:

• Hydrogel delivery systems enhance drug retention within the joint cavity, enabling novel therapeutic options.
• Hydrogels mimic the extracellular matrix, facilitating efficient cell loading and promoting cell function.
• Hydrogels can stimulate bone and cartilage regeneration, either intrinsically or through incorporated pro-regenerative factors.

Conclusions:

• Hydrogels represent a promising therapeutic strategy for osteoarthritis, addressing limitations of traditional treatments.
• Hydrogel-based approaches offer multifaceted benefits, including improved drug delivery, enhanced cell therapy, and promotion of tissue regeneration.
• The interlinked nature of these applications underscores the potential for integrated hydrogel therapies in OA management.