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more control during spinal correction with Ennovate® PolyLock®
less screw loosening thanks to Ennovate® PentaCore® , , 
more long-term screw stability due to Ennovate® Performance Design 
Precision where it counts – The smart pressure mechanism enables toggle-free connection. This enables precise work in hands-free as well as navigated surgical steps.
The design reflects the natural shape of the pedicle and shows a larger thread diameter in the upper part of the screw. In combination with the Dual Core design, the large proximal flanks create pullout resistance. [12-14]
PentaCore® for voluminous anchorage in cancellous bone. Cylindrically shaped core for cortical bone compactation and stable anchorage. Plus 28% less tensile stress within the screw for improved long-term performance.[9,12,13]
The fenestrated screws can be used for the application of various fluids. In case of poor bone quality, the combination of slots and the PentaCore® allows for a unique form fit which is more stable against rotational force.
Smooth insertion of the self-tapping and self-centering thread – bone purchase and grip from the very first turn. Rounded, flat tip and quick-start thread allow improved bicortical anchorage of the screw. [12-14]
 Ye B, Yan M, Zhu H, Duan W, Hu X, Ye Z, Luo Z. Novel Screw Head Design of Pedicle Screw for Reducing the Correction Loss in the Patients With Thoracolumbar Vertebral Fractures: A Biomechanical Study. Spine (Phila Pa 1976). 2017 Apr 1;42(7):E379-E384.
 Wang H, Li C, Liu T, Zhao WD, Zhou Y. Biomechanical efficacy of monoaxial or polyaxial pedicle screw and additional screw insertion at the level of fracture, in lumbar burst fracture: An experimental study. Indian J Orthop. 2012;46(4):395-401.
 Çetin, Engin & Özkaya, Mustafa & Güler, Ümit & Acaroglu, Emre & Demir, Teyfik. (2015). Evaluation of the Effect of Fixation Angle between Polyaxial Pedicle Screw Head and Rod on the Failure of Screw-Rod Connection. Applied Bionics and Biomechanics. 2015. 1-9.
 Galbusera F, Volkheimer D, Reitmaier S, Berger-Roscher N, Kienle A, Wilke HJ. Pedicle screw loosening: a clinically relevant complication? Eur Spine J. 2015;24(5):1005–1016. doi: 10.1007/s00586-015-3768-6. Epub 2015 Jan 24. PMID: 25616349.
 Tomé-Bermejo F, Piñera AR, Alvarez-Galovich L. Osteoporosis and the Management of Spinal Degenerative Disease (I). Arch Bone Jt Surg. 2017;5(5):272-282.
 Martín-Fernández M, López-Herradón A, Piñera AR, Tomé-Bermejo F, Duart JM, Vlad MD, Rodríguez-Arguisjuela MG, Alvarez-Galovich L. Potential risks of using cement-augmented screws for spinal fusion in patients with low bone quality. Spine J. 2017 Aug;17(8):1192-1199. 7 Chevalier Y, Matsuura M, Krüger S, Fleege C, Rickert M, Rauschmann M, Schilling C. Micro-CT and micro-FE analysis of pedicle screw fixation under different loading conditions. J Biomech. 2018 Mar 21;70:204-211.
 Wu Z, Ovaert TC, Niebur GL. Viscoelastic properties of human cortical bone tissue depend on gender and elastic modulus. J Orthop Res. 2012;30(5):693-699.
 Krenn MH, Piotrowski WP, Penzkofer R, Augat P. Influence of thread design on pedicle screw fixation. Laboratory investigation. J Neurosurg Spine. 2008 Jul;9(1):90-5.
 El Saman A, Meier S, Sander A, Kelm A, Marzi I, Laurer H. Reduced loosening rate and loss of correction following posterior stabilization with or without PMMA augmentation of pedicle screws in vertebral fractures in the elderly. Eur J Trauma Emerg Surg. 2013 Oct;39(5):455-60. doi: 10.1007/s00068-013-0310-6. Epub 2013 Jul 4.
 Rometsch E, Spruit M, Zigler JE, et al. Screw-Related Complications After Instrumentation of the Osteoporotic Spine: A Systematic Literature Review With Meta-Analysis. Global Spine J. 2020;10(1):69-88.
 Schilling C, Krueger S, Lindner S, Weiß JB, Grupp TM. In Silico Optimization Of A Novel Pedicle Screw Design And Validation By Experimental Results (Conference Abstract). 22nd Congress of the European Society of Biomechanics, July 10-13, Lyon (France) 2016.
 Chevalier Y, Matsuura M, Krüger S, Fleege C, Rickert M, Rauschmann M, Schilling C. Micro-CT and micro-FE analysis of pedicle screw fixation under different loading conditions. J Biomech. 2018 Mar 21;70:204-211.
 Demir, Teyfik., Basgül, Cemile. The Pullout Performance of Pedicle Screws. Deutschland: Springer International Publishing, 2015.
 Giacaglia, Giorgio & Lamas, Wendell. (2015). Pedicle Screw Rupture: A Case Study. Case Studies in Engineering Failure Analysis. 4. 64-75.
 Yuan HA, Garfin SR, Dickman CA, Mardjetko SM. A Historical Cohort Study of Pedicle Screw Fixation in Thoracic, Lumbar, and Sacral Spinal Fusions. Spine (Phila Pa 1976). 1994 Oct 15;19(20 Suppl):2279S-2296S.