[Spasticity of the lower limbs and the Weaver-Smith syndrome].

The diagnosis of Weaver-Smith syndrome has been carried out on two patients with facial dysmorphic features, excessive growth and accelerated bone maturation. A marked spasticity of the lower limbs with joint contractures in one patient, a spastic quadriplegia with delayed milestones in the second patient were the most prominent clinical features. In both cases a spontaneous improvement of muscle tone with complete recovery was observed at the end of the first year of life.