| HA | Hyaluronic Acid |
| IA | Intra-Articular |
| MPs | Microparticles |
| MMP-3 | Matrix-Metalloprotenase-3 |
| NPs | Nanoparticles |
| OA | Osteoarthritis |
| PEG | Polyethylene Glycol |
| PLA | Poly Lactic Acid |
| PLGA | Poly Lactic-co-Glycolic Acid |
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