Chinese Journal of Tissue Engineering Research ›› 2017, Vol. 21 ›› Issue (14): 2163-2169.doi: 10.3969/j.issn.2095-4344.2017.14.006
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Wang Yong, Wan Yong-xian, Zhang Xi-hai, Ye Jun-wu, Zhuo Nai-qiang
Received:
2016-12-22
Online:
2017-05-18
Published:
2017-06-10
Contact:
Zhuo Nai-qiang, Professor, Department of Bone and Joint Surgery, Affiliated Hospital of Southwest Medical University, Luzhou 646000, Sichuan Province, China
About author:
Wang Yong, Master, Physician, Department of Bone and Joint Surgery, Affiliated Hospital of Southwest Medical University, Luzhou 646000, Sichuan Province, China
Supported by:
the Project of Luzhou Science and Technology Bureau, No. 2011-S-39(3/6)
CLC Number:
Wang Yong, Wan Yong-xian, Zhang Xi-hai, Ye Jun-wu, Zhuo Nai-qiang. Titanium intramedullary nail coated with vancomycin-hydroxyapatite in a model of open long bone fracture with wound infection[J]. Chinese Journal of Tissue Engineering Research, 2017, 21(14): 2163-2169.
2.5 载万古霉素-羟基磷灰石涂层髓内钉对实验家兔造模后白细胞的影响 使用普通髓内钉固定的实验动物造模后第1,3,7,14,28天其体内白细胞计数均升高,低、中、高浓度的载万古霉素-羟基磷灰石涂层髓内钉固定组兔于造模后第1天内升高,第3,7,14,28天后逐渐降低。其中第1天普通髓内钉组和低、中、高浓度抗生素涂层组白细胞升高)其差异无显著性意义(P > 0.05),造模后3,7,14,28 d时间点低、中、高浓度抗生素涂层组家兔白细胞计数明显低于对照组,差异有显著性意义(P < 0.05)。说明载万古霉素-羟基磷灰石涂层髓内钉在开放性骨折治疗早期能有效降低血液中白细胞计数,有利于早期控制炎症的发生(图5)。"
2.8 普通髓内钉组与载万古霉素-羟基磷灰石涂层髓内钉组造模后伤肢X射线片检查 造模后第1周股骨X射线片可见普通髓内钉组骨折断端稳定,周围软组织影,肿胀明显,骨折线清晰,未见明显骨痂生长;载万古霉素-羟基磷灰石涂层组可见骨折对位对线良好,周围软组织肿胀不明显,骨折线清晰,周围未见明显骨痂。造模后第2周可见普通髓内钉组骨折线清晰,周围可见团状组织显影,骨折周围未见明显骨痂生长;载万古霉素-羟基磷灰石涂层组骨折线稍模糊,局部可见骨痂生长。造模后第4周可见普通髓内钉组骨折线稍模糊,而骨痂生长缓慢;载万古霉素-羟基磷灰石涂层组骨折线模糊,骨痂生长明显好于普通髓内钉组。造模后第8周X射线片可见普通髓内钉组骨折线模糊,可见少量骨痂生长,周围组织团块影明显,而载万古霉素-羟基磷灰石涂层组骨折线消失,周围见大量骨痂生成,骨折骨性愈合。见图7。"
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