Unilateral congenital dislocation of the knee and hip: a case report.

We report our experience with a unilateral congenital dislocation of the knee associated with a developmental dysplasia of the hip on the same side. Our case is a good example of congenital dislocation of the knee caused by abnormal intrauterine pressure leading to this type of congenital postural deformity. To our knowledge this is the first case of congenital dislocation of the knee reported after cervical cerclage of an incompetent cervix to prevent a pre-term delivery. The Pavlik Harness was used to treat the knee and the hip at the same time with a satisfactory result after 20 months of follow-up.