1964 - 1970: Surgeon, Pontificia Universidad Católica de Chile 1973 - 1975: Graduate Program of Orthopedics and Traumatology Program Director: Prof. H. Dr.Juan Fortune, Pontificia Universidad Católica de Chile, Chile 1974 - 1981: French Course for Fellows, 1974-1975 (1st and 2nd semester) , 1979-1980 (1st and 2nd semester). Diplome de Langue Francais Etrangers December 1980 Cours de Langue Perfectionnement I, Frances Instituto Chileno de Santiago 1981 (1st Semester) UC Medical School, Chile. 1981-1982: Scholarship of the Ministry of Foreign Affairs of France, from September 1981 to September ., 1982 This scholarship was developed in Hospitals: Hopital Ambroise Paré (Service du Professeur Ramadier JO) Hopital Cochin Port Royal (Service du Professeur M. Postel) Hopital La Pitié (Service du Professeur Camille R.Roy), France 1985 -: grant from the German Society of Orthopedics, from September to December 1985. Financing of the German Society of Orthopedics. , Germany Stays and training courses 2003 -: Refresher course on "Minimally invasive surgery of the hip and knee," Rush Presbyterian Hospital, Chicago, USA, October 2003. 2003 -: Reconstructive Hip Surgery Course and knee, August 20 to 22 2003, Clinica Alemana, Chile. , 2003 -: Fracture of the Pelvis and Acetabular. September 7-12 2003 Chaiman: Matte Joel MD, Frédéric Lande MD, Paris, France.. 2004 -: Visiting Professor. University of Loja, Teaching of Orthopedics and Traumatology. 4 to 12 June 2004, Ecuador. 2004 -: SLAOT Congress 2004, Guest speaker: "Total knee prosthesis with Posterior Stabilization", Margarita Island, Venezuela. 2004 -: Advanced Technolgy in Hip and Knee Surgical Reconstructive Surgery, (Assistant ) 2 to 4 December 2004, Grand Hyatt, New York. , 2004 -: Guest Speaker, "I Argentine-Chilean-Ecuadorian Orthopedics and Traumatology Course. From 14 to 17 April 2004, Quito, Ecuador. 2004 -: Course "Clinical Ethics Workshop", January 5 to 9, 2004, Teachers Training Centre Clinical PUC, Chile. June 2004 -: Course: Elbow Surgery, Director Dr. Morrey (Assistant Guest), Mayo Clinic, Rochester, USA.