Journal of Bone and Joint Surgery, March 1st, 2006
The aetiology of congenital club foot is unclear. Although studies on populations, families and twins suggest a genetic component, the mode of inheritance does not comply with distinctive patterns. The Odense-based Danish Twin Registry contains data on all 73 000 twin pairs born in Denmark over the last 130 years. In 2002 all 46 418 twins born between 1931 and 1982 received a 17-page questionnaire, one question of which was 'Were you born with club foot?' A total of 94 twins answered 'Yes', giving an overall self-reported prevalence of congenital club foot of 0.0027 (95% confidence interval (...
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