Hypothesis 1 Ð Congenital Abnormality In this situation, a congenital abnormality is certainly a possibilty, although it seems less likely because we have evidence of trauma during the difficult birth. Many types of congenital abnormalities can occur, such as angular limb deformities, which are due to laxity of the periarticular supporting structures or incomplete ossification of the carpal/tarsal bones, or assymetric growth of the metaphyses/epiphyses. In this case the tight bands of tissue connecting the raised toes with the tissue on the dorsum of the foot could be the result of a congenital tendon deformity that does not allow proper extension of the leg.