Cervical disc arthroplasty.
D-FLEX is a cervical disc prosthesis for replacing a diseased or bulging disc while keeping motion at the operated level. Two titanium endplates enclose a compressible silicone core, and the prosthesis is supplied pre-assembled as one component. The endplates are contoured to the vertebral surface and carry titanium blades for fixation. It is placed after a complete discectomy with the dedicated cervical disc instrument set.
Two titanium endplates enclose a compressible silicone core. The core is intended to absorb load between the vertebrae, while the titanium faces make the contact with bone. This material split is the main difference from D-MOTION, which is made entirely of PEEK.
The design is intended to keep flexion, extension, lateral bending and axial rotation. Maximum angles are 7° for flexion and extension, 7° for lateral bending and 10° for rotation. These are design limits of the implant and not a forecast of any patient's range of motion.
The prosthesis arrives assembled, so there is no intraoperative assembly step. It is held in the dedicated disc prosthesis holder and seated with light hammer taps.
The endplates follow the anatomy of the vertebral surface to give broad contact, and titanium blades are intended to resist migration.
Source: Normmed product catalogue.
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D-MOTIONPEEK cervical disc prosthesis
TRIMIAnterior cervical plate system
VERTELIFT-CAnterior cervical corpectomy cage
OXIS PLUSOccipitocervical fixation system
POLARCervical PEEK cage