Introduction. Developmental dysplasia of the hip (DDH) concerns about 5 per cent of the newborn population, and congenital hip dislocation (1%) is considered a challenge in child orthopedics due to the risk of further complications. Recently, the occurrence of this illness has been decreasing due to early hip diagnostics in newborns and fast implementation of proper treatment. Aim. To describe multi-annual treatment and multiplicitous complications in a 15 years old patient diagnosed with DDH. Description of the case. Complications occurring, despite the treatment conducted in accordance with accepted standards, induced the necessity of surgical procedures. This paper describes applied surgical techniques, physiotherapy treatment, the functional status of patient during particular stages of treatment as well as current results of gait analyses. Conclusions. In spite of early diagnosis and treatment of DDH, surgical intervention does not always bring the expected result.
