Orthosis for spine, comprising a support structure (2) formed by several parts, a splint (1), upper tapes (14) and lower tapes (15)； wherein the support structure is configured to be attached to the body of a patient by means of the upper straps (14) and lower straps (15)； and wherein the splint is configured to stiffen a part of the support structure (2)； characterized because: - the splint (1) comprises a first main part (3), a second main part (4) and a joining system (5) that is configured to join the two main parts: first (3) and second (4)； - the joining system (5) comprises anchoring elements (6) and holes (7, 8) located in facing sides (9, 10) of the first main part (3) and second main part (4) , respectively； - the union of the first main part (3) and the second main part (4) comprises the anchoring elements (6) that are introduced through pairs of the holes (7, 8) of the two main parts (3, 4) of the splint (1) when said pairs of holes (7, 8) are facing each other with the superposition of the lateral parts (9, 10) of the first main part (3) and second main part (4). (Machine-translation by Google Translate, not legally binding)1. Órtesis para columna vertebral, que comprende una estructura soporte (2) formada por varias piezas, una férula (1), unas cintas superiores (14) y unas cintas inferiores (15)； donde la estructura soporte está configurada para sujetarse al cuerpo de un paciente por mediación de las cintas superiores (14) y cintas inferiores (15)； y donde la férula está configurada para rigidizar una parte de la estructura soporte (2)； caracterizada porque: - la férula (1) comprende una primera pieza principal (3), una segunda pieza principal (4) y un sistema de unión (5) que está configurado para unir las dos piezas principales: primera (3) y segunda (4)； - el sistema de unión (5) comprende unos elementos de anclaje (6) y unos orificios (7, 8) ubicados en unas partes laterales (9, 10) enfrentadas de la primera pieza principal (3) y segunda pieza pri
