The COSY System is a modern, modular posterior occipito-cervico-thoracic (OCT) fixation platform designed to support constructs from the occiput to the upper thoracic spine within a single system – including the cervicothoracic junction through dedicated transition rods.
A key strength of COSY is its freedom of anchor selection. Polyaxial, cervical pedicle, smooth-shank, and angled screws (Ø 3.5–4.5 mm) allow surgeons to combine lateral mass, pedicle, C2 pars, and translaminar trajectories within a single construct, adapting fixation to the individual anatomy and surgical requirements. Low-profile, cannulated screw heads with up to 70° of angulation support K-wire-verified trajectory control and facilitate navigated and tissue-preserving techniques. For complex anatomy and intraoperative flexibility, the system is complemented by occipital plates and rods, cross and offset connectors, as well as atlas hook options, providing a broad range of construct possibilities within one modular platform.
When a construct needs to extend further caudally, COSY can be seamlessly combined with DIPLOMAT®, SIGNUS’ modular posterior thoracolumbar fixation system. DIPLOMAT has been established in the U.S. market for more than a decade and has continuously evolved through product enhancements addressing specific market and surgical needs.
About SIGNUS
SIGNUS – the Sign for Spine: Passionate! Dynamic! Worldwide!
Innovative high-end implants made in Germany: For more than 25 years, SIGNUS has been the experienced specialist for comprehensive solutions in the surgical spine care sector. Founded in 1994 in Germany’s Lower Franconian city of Alzenau by Susanne and Uwe Siedler, our family-owned company currently has staff of approx. 80 at sites in Germany and Australia. SIGNUS offers the comprehensive product range of cervical spine to SIG sacroiliac joints, which are predominately manufactured at the nearby production site of ProCon Medizintechnik. In addition to Europe (CE) and the USA (FDA), we sell our certified implants throughout the world on every continent. Target-oriented further development of the products in connection with the continuous exchange with the users as well as international further education and hospitalisation programs make SIGNUS a reliable global partner.
The entire SIGNUS Portfolio with detailed information and descriptions are available for you online at www.signus.com