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佝偻病是婴幼儿常见的一种慢性营养缺乏症,发病以6个月至2岁儿童为多。主要是体内缺乏维生素D,导致钙和磷的代谢失常,引起骨骼发育障碍及全身性生理功能紊乱,使骨骺软骨细胞的正常变性出现异常,毛细血管对软骨的侵入及软骨与骨样组织的正常钙化发生障碍,同时骨样组织的形成继续进行,骺干连接处原来的钙化预备区渐被较宽的佝偻性中间区所代替,中间区缺乏钙质而变软,当受压时就向四周凸出,出现畸形。
Rickets is a common chronic nutritional deficiency in infants and young children, incidence of more than 6 months to 2 years old children. Mainly lack of vitamin D in the body, leading to metabolic disorders of calcium and phosphorus, causing skeletal development disorders and systemic physiological disorders, abnormal epiphyseal chondrocytes abnormal degeneration, capillary invasion of cartilage and cartilage and bone-like normal Calcification occurs, while the formation of bone-like tissue continue to carry out, epiphyseal stem junction of the original calcification preparation area gradually replaced by a wider middling of the middle area, lack of calcium and softened, when the compression to the surrounding Protruding, there deformity.