Monoaxial screw Ø 4,5 mm cannulated, length 20 to 50 mm, pitch 5 mm, article no. 830.0XXXC.

A small non-sterile threaded rod with a slotted head used for internal spinal fixation in discectomy and spinal fusion procedures as a means of providing immobilisation and stabilisation of spinal segments in the treatment of various spinal instabilities or deformities . It is made of a material that does not chemically degrade or absorb through the body's natural processes. Cannulated design. Possibility of transvintage augmentation of the vertebra with cement. Bone chips can be drained by means of tapping grooves at the tip of the screw. Internal hexagonal bore for screwdriver insertion/removal. Head type is chambered. The cross-sectional shape of the head is round. For spondylolisthesis operations - annular groove on the head for connection of the pressuriser. Laser marking of the screw diameter. Sterilisation required.