By: 16 July 2015
ASCOT: New cervical plate system with screw locking mechanism

New cervical plate system with screw locking mechanism

SIGNUS (Alzenau) is expanding its product range for the cervical spine. Along with TOSCA and TOSCA II Standard, ASCOT is a new system that is now available for anterior stabilisation in interbody fusion.

The cervical plates developed by SIGNUS have a flat and semi-rigid design to promotes optimum load transfer to the bone and prevent a stress-shielding effect, thus favouring the physiological stimulation of the bone (Wolff’s law) – whilst simultaneously preventing tissue irritations. The positive influence of this plate design on fusion has already been proven in studies, in comparison with inferior outcomes with rigid systems1,2,3.

Due to the high degree of angle variability of the screws (10° in every direction), implantation is greatly facilitated, as the plate can thus adapt to the patient anatomy. ASCOT also offers an expansion ring that is integrated in the plate hole for when the screw is inserted, effectively preventing the postoperative back-out.

ASCOT is implanted via an anterior approach to temporarily stabilise the cervical spine (C2 to C7), until such time as solid bony fusion has occurred. The implant can fixate up to four segments and is used for instabilities caused, for example, by degenerative disc diseases, spinal canal stenosis, spondylolisthesis, trauma or failed fusions.

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Mayr MT, Subach PR, Comey CH, et al. Cervical spine stenosis: outcome after anterior corpectomy, allograft reconstruction, and instrumentation. J Neurosurg 2002; 96:10-16.

Vaccaro AR, Falatyn SP, Scuderi GJ, et al. Early failure of long segment anterior cervical plate fixation. J Spinal Disord 1998; 11:410-415.

Benzel EC. Biomechanics of Spine Stabilization. Rolling Meadows, IL: AANS, 2001; pp 437-440.

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