A modular lateral expansion device to be inserted into a vertebral body. The modular lateral expansion device comprises a pair of complementary lateral members. Each of the lateral members includes a first end, a second end, a first lateral portion, a second lateral portion, a top wall, a bottom wall,...http://www.google.fr/patents/US8002831?utm_source=gb-gplus-shareBrevet US8002831 - Modular lateral expansion device
