Diagnosis of syringomyelia and Chiari malformations in patients with scoliosis.

Background. Syryngomyelia was first described by Olliver in 1824. Burwell and Williams reported a 50% incidence of scoliosis in patients with syringomyelia.

Variability of the anteversion angle in children with Perthes' disease treated with varus-derotation subtrochanteric osteotomy.

Background. Despite extensive research, it is still unknown whether a 40% increase in the anteversion angle value is a primary or a secondary change in Perthes' disease. The aim of the study was to evaluate the variability of the anteversion angle in children with unilateral Perthes disease treated operatively with varus and derotation osteotomy.

Remodelling and congruency of the hip joint in children with Perthes' disease treated with varus-derotation subtrochanteric osteotomy.

Background. Dislocation of the femoral head to the front and to the side during the course of Perthes' disease is the main threat to the development of the hip. Containment of the femoral head into the acetabulum is the main goal of conservative and operative treatment.