Foot Bone Development In Congenital Clubfoot

Objective: Congenital clubfoot(CCF) is one kind of common congenital deformities in children foot, lots of the treatment cannot consolidate the long-term effect but offer more satisfactory short-term effect. We want to analyze the component of skeleton of the CCF by X-imagings and CT 3D-imagings and analyze the cause of reserving deformities and hampering correction. Methods: We studied 65 children(28boys, 27girls. Mean age 20.7m) with one CCF. Measure their tarsal bone and compare with the normal feet by X-imagings and CT 3D-imagings with an uniform measurement standard and method. We analyze the correlations and the force distribution pathes among the feet bone. Based on podogram imagings, we can roughly know the force distribution on sole of the feet. From them we can find the factors which reserve deformities and hamper deformities to be corrected.Results:1 in children with CCF, Their tarsal bone nucleus development lag of the normal's and their talus,calcaneums and navicular bones shapes change. TC joint dislocate on 3 planes. Tarsal arrange is disordered with cancaneum inversion. In the older CCF childrern we can find the sustentaculum talus disappear. TN joint dislocate on 2 planes. 2 the skeleton and joint deformities change the force distribution pathes and hamper deformities to be corrected. It may be the cause of the deformities reverved. The abnormal forces distribution may be the cause of bone nucleus lessened.Conclusion In CCF children correction, recovered the feet bone arranging and nearly the normal force distribution pathes and reserved in corrected location walking maybe able to consolidate the long-term effect.