MODULAR VERTEBRAL STABILIZER

摘要

Stabilizer (6) of the spinal column adapted to connect to each other at least two adjacent vertebrae (1 and 2) using flexible connection elements that allow for some limited motion to the vertebrae and/or stiff connection elements. The stabilizer (6) comprises an elongated block (7) of predetermined length having two ends operatively connected or compressed between the heads (11) of two screws (12) connected to adjacent vertebrae (1 and 2). The head (11) can be obtained separated from the screw (12) and the head (11) and the screw (12) can be componible together through engaging means. The block (7) can be stiff or flexible. The head (11) can have a first through hole (13) adapted to house a resilient tie-member (8) connected between two heads (11) and adapted to keep the block (7) in position. The head (11) can have a second through hole, at an angle with respect to the first hole (13), said second hole being adapted to house a transversal tie-member connecting diagonally with respect to the spinal column the heads (11) of two screws being applied to two consecutive vertebrae (1 and 3).