JAMA:关节内注射富含血小板血浆治疗膝关节炎

2021-11-24 MedSci原创 MedSci原创

在有症状的轻中度放射学膝关节骨性关节炎患者中,关节内注射富含血小板血浆对临床症状或关节结构无显著改善作用,研究不支持使用PRP治疗膝关节骨性关节炎

膝关节炎(OA)是一种以退行性病理改变为基础的疾患。多患于中老年人群,其症状多表现为膝盖红肿痛、上下楼梯痛、坐起立行时膝部酸痛不适等,其较少有炎症因素,主要是由于细胞及基质的退变造成的,尽管大多数临床指南不推荐富含血小板的血浆(PRP)治疗OA,但 PRP在膝OA中的使用正在增加。近日研究人员评估了关节内注射PRP对有症状的轻中度膝关节内侧OA患者症状和关节结构的影响。

本次研究为随机、2组、安慰剂对照、参与者、注射剂和评估者盲法临床试验,在澳大利亚悉尼和墨尔本开展,50岁或以上患有症状性膝关节内侧OA(Kellgren和Lawrence 2级或3级)的患者参与研究(n=288),随机接受去白细胞PRP(n=144)或生理盐水(n=144)关节内注射,每周3次。研究的主要终点为12个月膝关节疼痛总平均得分变化(11分;范围0-10,得分越高表示疼痛越严重;最小临床重要差异为1.8)和通过磁共振成像(MRI)评估的胫骨内侧软骨体积变化,研究包含31个次要终点,涉及疼痛、功能、生活质量、整体变化和关节结构等方面。

患者平均年龄61.9岁,169名女性(59%),269名患者(93%)完成了试验,其中140名参与者(97%)接受了全部治疗。12个月后,PRP治疗组与安慰剂组相比,膝关节疼痛评分平均变化分别为-2.1 vs -1.8分(差异=-0.4)。胫骨内侧软骨体积的平均变化为-1.4% vs -1.2%(差异= -0.2%),差异不显著。 在31个预先指定的次要结果中,29个无显著差异。

组间临床症状改善

研究认为,在有症状的轻中度放射学膝关节骨性关节炎患者中,关节内注射富含血小板血浆对临床症状或关节结构无显著改善作用,研究不支持使用PRP治疗膝关节骨性关节炎

原始出处:

Kim L. Bennell et al. Effect of Intra-articular Platelet-Rich Plasma vs Placebo Injection on Pain and Medial Tibial Cartilage Volume in Patients With Knee Osteoarthritis The RESTORE Randomized Clinical Trial. JAMA. November 23/30,2021.

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    2021-11-26 lmm397
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    2021-11-24 医鸣惊人

    认真学习了。

    0

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