Primary total hip arthroplasty for acetabular fractures in elderly patients M. Sarasa-Roca; M.C. Angulo-Castaño; J. Gómez-Vallejo; A. Torres-Campos; J.M. Lasierra-SanRomán; J. Albareda-Albareda;

Unestable knee osteochondritis dissecans: Arthroscopic fixation with bio-absorbable device J.M. Bogallo; M. Godino Izquierdo; J. Dalla-Rosa; L. Ramos González; M. Arjona Diaz; E. Guerado;

Treatment of big osteochondral defects in the lateral femoral condyle in young patients with autologous graft and collagen mesh J. Villalba; J.M. Peñalver; J. Sánchez;