化脓性关节炎最早由Smith(1874)描述,称“Smith关节炎”。本病并不常见,延误诊断而未及时治疗可造成肢体残废,特别在婴幼儿髋关节受累时,预后更差。自抗生素问世以来,本病的治疗已经改观。发病情况,Wiley等4年中报告50例;Nade等发现45例中,2岁以下者占14例(31％),3岁以下者22例(49％);Borella等发现3～6个月内婴儿的发病率较低。婴幼儿多累及髋关节,年长儿多累及膝关节。约10％患儿受累多处关节。诊断和鉴别诊断 Suppurative arthritis was first described by Smith (1874) as “Smith’s arthritis.” The disease is not common, delayed diagnosis without timely treatment can cause limb disability, especially in infants with hip involvement, the prognosis worse. Since the advent of antibiotics, the treatment of this disease has changed. Fifty-five cases were reported by Wiley et al. In 45 cases, Nade et al. Found that 14 (31%) were younger than 2 years and 22 (49%) were younger than 3 years old. Borella et al found that 3-6 months The incidence of infants is low. More infants and young children involved in the hip, older children more involved in the knee. About 10% of children suffer from multiple joints. Diagnosis and differential diagnosis