Agreement and Inter-rater Reliability of Video Documented PBS-Score - An International Cross-sectional Multicenter Study

120 children with idiopathic clubfoot will be included from four different countries 30 patients from each participating center. Inclusion criteria include: age 4-14 years, diagnosis of idiopathic clubfoot, ability to walk 10 m repeatedly, and ability to communicate verbally (and in writing for caregivers) in Swedish, English, Portuguese, Urdu, or Pashto. All items of the PBS-score will be documented using video recordings. Six to eight senior orthopedic surgeons will score a total of 90 children each, not the children from their center of employment, according to the PBS-score based on videos. Collaborating centers include Karolinska University Hospital, Sweden, Hospital Pequeno Príncipe, Brazil, and Hayatabad Medical Complex, Orthopaedic Unit, Peshawar, Pakistan.