Posterior transpendicuar fixation system Posterior transpendicuar fixation system is designed to respond to the most complex rachis surgical situations both of traumatic, tumoral origin as well as degenerative. The system is made by mono and polyaxial screws, for 5mm and 6.3mm rods alike, giving the surgeon the possibility to choose depending on the dimension and patient's demand. Also, some fit hooks can be offered to use with rods of any diameter, for sublaminar, pedicular or transverse fixations. Simple and smart surgical instrumentation to ease and shorten surgical time. This system can be combined with radal and Crystal Systems.