Last updated on February 2018

Lumbar Fusion With The Icotec CF/PEEK Pedicle System In Combination With The Icotec CF/PEEK TLIF Cage ETurn

Brief description of study

The objective of the PMCF is to collect outcome information on patients suffering from symptomatic degenerative disc disease or degenerative spondylolisthesis requiring 1- or 2-level lumbar or lumbar-sacral spinal fusion with posterior instrumentation and therefore receiving the icotec CF/PEEK Pedicle System in combination with the icotec CF/PEEK TLIF Cage ETurn.

Detailed Study Description

Background: At present, metal pedicle screw systems made from titanium or stainless steel are commonly used for posterior stabilization. One disadvantage of theses metal devices is that they cause shadows and artifacts on CTs and MRIs which may hamper the postoperative exploration of the onset of spinal diseases and in particular the evaluation of the neuroforamina, the spinal canal and bone-implant interfaces. Therefore new concepts of pedicle screw devices use non-radiopaque materials such as carbon fiber-reinforced polyetheretherketone (CF/PEEK) without compromising mechanical properties compared to standard titanium implants and possibly reducing the risk for adjacent segment diseases.

Description of the study devices:

The icotec Pedicle System is intended to provide immobilization and stabilization of spinal segments in skeletally mature patients as an adjunct to fusion in the treatment of acute and chronic instabilities or deformities of the thoracic, lumbar and sacral spine. The carbon fiber-reinforced polyetheretherketone (CF/PEEK) that is used to produce the icotec pedicle system rod and screw shaft is a thermoplastic composite biomaterial exhibiting properties suitable for load-bearing orthopedic implants. The CF/PEEK material does not cause artifacts or shadows on adjacent tissues with all imaging modalities such as x-ray, CT, and MRI. Radiopaque markers or fibres made from titanium or tantalum are embedded. The pedicle system rod and screws allow this advantage to be realized without compromising mechanical properties compared to standard titanium implants.

Description of the study device - icotec CF/PEEK TLIF Cage ETurn: The icotec ETurn TLIF cage consists of a windowed body with a central slot, a distraction/ insertion wedge and surface treads on its cranial and caudal surfaces that serve to guide and anchor the implant (see figure 4). The concentrically arranged treads enable the implant to turn on its own from its position of insertion into the disc space to its transverse end position. The tread surfaces help to create a significantly larger pressure-bearing contact surface between the implant and the bone than the conventional pointed anchoring elements.

Risk Analysis and risk Management: Most of the risks of implant related, surgical and postoperative complications associated with the implantation of the icotec CF/PEEK Pedicle System in combination with the icotec ETurn TLIF cage, are comparable to the risks associated with other TLIF surgeries with cages and pedicle screw systems intended for lumbar spine stabilization.

risks and possible adverse outcomes have been identified for the icotec CF/PEEK Pedicle System as well as for the CF/PEEK TLIF Cage ETurn.

Legal Aspects: For this post-market investigation only CE-marked medical devices will be used within their intended purpose and no additional invasive or other stressful examinations are to be carried out.

All subjects will voluntarily sign the Informed Consent document. Ethics approval for the study will be obtained prior to starting the study

Data Monitoring: Independent on-site Monitoring will be performed at all investigational sites.

Clinical Study Identifier: NCT02087267

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Holger Schenke, MD

St dtisches Klinikum G rlitz gGmbH, Klinik f r Neurochirurgie
Görlitz, Germany
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