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SIGNUS developed DIPLOMAT in collaboration with international spinal surgeons. The focus during development was on achieving the optimal balance between clinical performance and user friendliness. The result is an instrument set that combines maximum practical application and optimum patient treatment and which has already become successfully established for a wide range of different indications.

  • Fewer components for greater efficiency.

  • One system for all indications.

  • Intraoperative replacement for efficient and optimum treatment.

  • Optimal adjustment thanks to the lowest tulip profile.

  • Robust performance outcomes along with stability and safety.


With the DIPLOMAT MIS system, SIGNUS offers a modular extension of the DIPLOMAT pedicle screw system, allowing the full functionality of the pedicle screw system to be extended by minimally-invasive access instrumentation, thereby achieving optimized tissue protection. This leaves all options at the surgeon's disposal: segmental distraction and compression as well as sagittal repositioning (grade I) on a minimally invasive basis without the need to
change screw systems.

  • Small tulip diameters enable minimal approaches.

  • Integrated reduction option of the MIS rods.

  • Fenestrated screws starting from 5.5 mm diameter.

  • Maximum resistance to pull-out forces.

  • DIPLOMAT MIS distractor/compressor



The LSZ system is part of the DIPLOMAT system and was developed in collaboration with Professor A. Laka, Professor M. Sampiev and Professor Z. Zagorodniy / Centre for Scoliosis Correction at the Central Clinical Paediatric Hospital in Moscow / Russia.


Dorsal systems with transpedicular screws as the basic element to stabilise the spine have become the gold standard for surgical treatment of spinal deformities and are used in most cases where correction of scoliosis or segmental fixation is required. If, however, there is a severe kyphotic or scoliotic spinal deformity, particularly one that is associated with a developmental disorder such as hypoplasia or aplasia of the pedicle that makes insertion of a screw more difficult, this raises the question of other fixation methods. Infralaminar hooks (LSZ) are a sensible alternative to pedicle screws for specific spinal sections. Their stability is comparable to that of pedicle screws (Hans-Joachim Wilke, D. Kaiser, Rafat Saleh, D. Volkheimer, M. Braekau, S. Schädler, K. Püschel, M. Rauschmann A pedicle screw system and a lamina hook system provide similar primary and long-term stability. A biomechanical in vitro studywith quasi-static and dynamic loading conditions. European Spine Journal)

  • Hook-based system

  • Less traumatic surgery

  • Rescue: anchorage options with destroyed pedicles.

  • Optimal adjustment thanks to the lowest tulip profile.

  • Low radiation exposure for patient and surgeon.

  • Secure anchorage

  • Safe and straightforward correction

  • Opportunity for revision

  • Colour coding

  • Straightforward instruments




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