Hsu Yung-Heng, Feng Pin-Chao, Yu Yi-Hsun, Chou Ying-Chao, Wang Zhe-Pei, Liu Shih-Jung
Department of Orthopedic Surgery, Bone and Joint Research Center, Chang Gung Memorial Hospital-Linkou Taoyuan 33305 Taiwan
Department of Mechanical Engineering, Chang Gung University 259 Wen-Hwa 1st Road Kwei-Shan Taoyuan 33302 Taiwan +886-3-2118558 +886-3-2118166.
RSC Adv. 2025 May 12;15(20):15505-15515. doi: 10.1039/d5ra01494h.
Despite advancements in modern technology, treating degenerative arthritis remains a challenge. This study developed a degradable, hyaluronic acid-loaded, drug-eluting nanofibrous pad designed to provide extended pain relief and prevent infection at the knee joint. The mechanical performance of the biodegradable pads was assessed, and the pharmaceutical discharge kinetics were estimated using an elution method. Additionally, pharmaceutical release and efficacy were tested using a rabbit activity model. The experimental results suggest that the degradable pad exhibited strong mechanical properties. , the drug-eluting nanofibrous pad sustained the release of teicoplanin, ceftazidime, and ketorolac for 10, 24, and 30 days, respectively, and maintained high levels of connective tissue growth factor elution over a 30-day period. Moreover, animal testing demonstrated that the pad released significant amounts of antimicrobial and pain-relieving agents in a rabbit knee joint model for over 28 days. Rabbits implanted with the drug-eluting pads exhibited activity levels comparable to those that did not undergo surgery. These findings indicate that the hyaluronic acid-loaded, drug-eluting nanofibrous degradable pad, with its extended release of pharmaceuticals and biomolecules, may be used for the treatment of degenerative arthritis.
尽管现代技术不断进步,但治疗退行性关节炎仍然是一项挑战。本研究开发了一种可降解的、负载透明质酸的药物洗脱纳米纤维垫,旨在提供持久的疼痛缓解并预防膝关节感染。评估了可生物降解垫的机械性能,并使用洗脱方法估计了药物释放动力学。此外,使用兔活动模型测试了药物释放和疗效。实验结果表明,可降解垫表现出强大的机械性能。药物洗脱纳米纤维垫分别持续释放替考拉宁、头孢他啶和酮咯酸10天、24天和30天,并在30天内保持较高水平的结缔组织生长因子洗脱。此外,动物试验表明,该垫在兔膝关节模型中释放大量抗菌和止痛剂超过28天。植入药物洗脱垫的兔子表现出的活动水平与未接受手术的兔子相当。这些发现表明,负载透明质酸的药物洗脱纳米纤维可降解垫,因其药物和生物分子的持续释放,可用于治疗退行性关节炎。
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