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首页> 外文期刊>Journal of biomedical materials research. Part B, Applied biomaterials. >Effective healing of chronic rotator cuff injury using recombinant bone morphogenetic protein‐2 coated dermal patch in vivo in vivo
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Effective healing of chronic rotator cuff injury using recombinant bone morphogenetic protein‐2 coated dermal patch in vivo in vivo

机译:使用重组骨形态发生蛋白-2在体内使用重组骨形态发生蛋白-2涂层皮肤贴膜的慢性转子袖带损伤的有效愈合

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摘要

Abstract Biologic augmentation for rotator cuff repair is a challenging treatment in patients with chronic large, massive, and irreparable rotator cuff injuries. Particularly, the use of an extracellular matrix (ECM) patch such as dermal tissue offered improved biomechanical properties in previous studies. Cytokines induce cell chemotaxis, proliferation, matrix synthesis, and cell differentiation. Moreover, osteoinductive growth factors such as bone morphogenetic protein‐2 (BMP‐2) affect the formation of new bone and fibrocartilage in lesions. However, the effects of using a dermal patch in combination with BMP‐2 have not been evaluated to date, although many researchers have recognized the importance thereof. In this study, rhBMP‐2‐coated dermal patch (1 cm × 2 cm) isolated from human cadaveric donor was inserted in a rabbit model of chronic rotator cuff injury for in vivo evaluation. Bone mineral density and biomechanical strength were tested and histological and histomorphometric analyses were performed. The results showed that insertion of an rhBMP‐2‐coated acellular dermal patch not only significantly ameliorated new bone formation, it also improved biomechanical properties such as ultimate tensile strength. Thus, the use of this combination may improve the chronic rotator cuff injury‐healing rate and clinical outcomes after rotator cuff repair. ? 2016 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater, 105B: 1840–1846, 2017.
机译:摘要转子袖带修复的生物学增强是慢性大,大规模和无法修复的肩带伤害患者的挑战性。特别地,使用细胞外基质(ECM)贴片(例如皮肤组织)在先前的研究中提供了改善的生物力学性质。细胞因子诱导细胞趋化性,增殖,基质合成和细胞分化。此外,骨髓发生蛋白-2(BMP-2)等骨诱导生长因子影响了损伤中新骨和纤维纤维的形成。然而,迄今为止,迄今为止,虽然许多研究人员认识到其重要性,但使用了使用皮肤贴剂与BMP-2的组合的影响。在该研究中,将从人尸体供体中分离的RHBMP-2涂覆的皮肤贴片(1cm×2cm)插入到体内评估中的慢性旋转器袖带损伤的兔模型中。测试骨矿物质密度和生物力学强度,并进行组织学和组织学和组织素分析。结果表明,插入rhBMP-2涂层的无细胞皮肤贴片不仅显着改善了新的骨形成,还改善了诸如最终拉伸强度的生物力学性能。因此,这种组合的使用可以改善旋转箍修复后的慢性旋转器袖带损伤愈合率和临床结果。还2016年Wiley期刊,Inc。J生物密制Res P部分:苹果生物摩特,105B:1840-1846,2017。

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