抗生素骨水泥治疗糖尿病足溃疡的作用机制及临床应用进展
Action mechanisms of antibiotic-loaded bone cement in treatment of diabetic foot ulcer and progress in its clinical application
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摘要: 糖尿病足溃疡(DFU)是糖尿病常见且严重的并发症,具有感染率高、愈合缓慢和截肢风险高等特点。其发生与周围神经病变、外周血管病变、代谢紊乱、免疫功能失调及局部微循环障碍密切相关。传统治疗方法在控制深部感染和促进创面愈合方面存在一定局限。抗生素骨水泥(ALBC)作为一种局部缓释抗菌材料,具有在创面持续释放高浓度抗菌药物的特点,能有效抗菌、填充死腔并促进组织修复,近年来已广泛应用于糖尿病足溃疡的治疗。本文通过对糖尿病足溃疡的发病机制,重点分析了ALBC在局部抗菌药物释放、膜形成及改善微循环、载体与载药因素对抗菌-修复效应的调控等方面的作用机制,并总结其与中医内治、外治以及现代外科技术联合应用的临床进展,旨在为临床治疗提供新的思路和方案,改善患者预后。Abstract: Diabetic foot ulcer (DFU) is a common and severe complication of diabetes mellitus and is characterized by high incidence of infections, delayed wound healing and high risk of amputation. Its pathogenesis is closely associated with peripheral neuropathy, peripheral vasculopathy, metabolic disorders, immune dysfunction and local microcirculation disturbance. Conventional treatment modalities have certain limitations in controlling deep-seated infections and accelerating wound healing. As a local antimicrobial sustained-release material, antibiotic-loaded bone cement (ALBC) features the continuous release of high-concentration antibiotics at the wound site, which can exert potent antibacterial effects, fill dead space, and promote tissue repair. In recent years, it has been widely applied in the treatment of DFU. By elaborating on the pathogenesis of DFU, this paper focuses on analysis of the mechanisms of ALBC in local antibiotic release, biofilm formation and microcirculation improvement as well as regulation of carrier and drug-loading factors on antibacterial-repairing effect. Additionally, it summarizes the clinical advances in its combination with TCM internal and external therapies as well as modern surgical techniques, aiming to provide novel insights and regimens for clinical treatment and improve the prognosis of patients.
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