目的了解近年来北京市西城区医院监测先天马蹄内翻足陷发生情况。方法对2005年10月1日～2010年9月30日间北京市西城区产科医院孕13周～产后7天的胎儿及新生儿进行出生缺陷监测,并对监测结果进行率及顺位等分析。结果①监测到马蹄内翻足患儿34例,发生率为8.76/万,发生例数逐年增多,女孩高于男孩,外地高于本市。②容易发生部位按例数多少依次为双足、左足及右足;容易合并其他畸形按合并畸形例数多少依次为左足、双足、右足。③单纯马蹄内翻足占67.65%,同时合并其他畸形占32.35%;合并的畸形最多的为肢体短缩,其次为先心、唇腭裂、肾畸形。④先天马蹄内翻足产前诊断率为44.12%,孕中期产前诊断率为44.12%,孕晚期产前诊断率为9.52%。合并其他畸形的先天马蹄内翻足产前诊断率为90.91%,单纯马蹄内翻足畸形的产前诊断率为21.74%。结论西城区先天马蹄内翻足外地多于本地,以单纯马蹄内翻足为主;同时合并其他畸形的先天马蹄内翻足容易在产前发现;若提高产前诊断率需提高孕晚期单纯马蹄内翻足的B超检测水平。 Objective To understand the occurrence of congenital clubfoot in the Xicheng District Hospital in Beijing in recent years. Methods Fetal and neonatal births were monitored from October 13, 2005 to September 30, 2010 at the Obstetrics and Gynecology Hospital of Beijing Xicheng District for 13 weeks to 7 days after birth. The surveillance rate and rankings were also analyzed . Results ① Thirty-four children with clubfoot were detected, the incidence was 8.76 / 10 000, the number of cases increased year by year, the girl was higher than the boy and the field was higher than the city. ② prone to site by the number of cases followed by the number of feet, left foot and right foot; easy to merge other deformity according to the number of merger deformity cases followed by left foot, feet, right foot. ③ pure clubfoot accounted for 67.65%, while other malformations accounted for 32.35%; the most common deformity for the limb shortening, followed by heart, cleft lip and palate, kidney deformity. ④ congenital clubfoot prenatal diagnosis rate was 44.12% prenatal diagnosis rate was 44.12% prenatal diagnosis rate was 9.52%. The rate of prenatal diagnosis of congenital clubfoot congenital malformations was 90.91%. The prenatal diagnosis rate of pure clubfoot was 21.74%. Conclusions The congenital clubfoot in Xicheng District is more than that in the local area, with pure clubfoot predominating. Congenital clubfoot complicated by other deformities is easily found in prenatal period. If the rate of prenatal diagnosis is increased, the simple horseshoe Inverted foot B-detection level.