Horacio Caviglia is Professor of Orthopaedic Surgery at Buenos Aires University, Buenos Aires, Argentina. He is also the Past President of Musculoskeletal Committee of WFH. He published several articles in journals such as Haemophilia and Clinical Orthopedics and Related Research. Luigi Piero Solimeno is an Orthopaedic Surgeon and Chief of Hemophilic Arthropathy Treatment Centre "Maria Grazia Gatti Randi" in Milan, Italy. He is the Vice Junior President of Musculoskeletal Committee of WFH. He also published for Haemophilia.