Individual implant (cage) for a patient with a C2 tumor (an example of a real operation)

cults3d

Product Name: individual interbody implant (hereinafter Cage). The planned volume of resection: removal of the remains of the body C2 with a dentoid process. Scope of application: the cage is designed for installation in the cervical spine and replacement of C2 vertebrae Design parameters and technical characteristics Basic parameters: the shape and geometric dimensions are determined in accordance with the individual parameters of the patient and the planned volume of replacement. The implant inside should be hollow to facilitate and accommodate osteoinductive material in it. The walls are porous with a solid wall in the stress zones - the front and rear side edges, around the screw route. In the middle part, you need to make a channel for the wire (it should not intersect with the central channel for the osteoinductor). Cage shape: * monolithic side surfaces (2-3 mm), front and back of the Cage with perforation; * tool holes are provided on the front; * the part adjacent to the vertebra above and below should repeat the shape of the vertebra; * screws for mounting are standard, the entrance is at an angle of 45 degrees; * fastening through plates that fit on the supporting parts; * make the inside hollow to facilitate and accommodate osteoinductive material in it; * protruding brackets along the lower edge of the implant for anterior fixation with 2 screws. Planned fixation: The cage is secured by fixing with 4 standard screws (screws diameter 3 mm) The screws are screwed directly into the places indicated by the surgeon. Support on the lower surfaces of the lateral masses C1 and the upper closure plate of the body C3. It is desirable to hold the screw with a touch to the edge of the implant (without an overhead "visor). The length of the screw is 16 mm. Material requirements: Material - titanium grade VT6 (Ti6Al4V) Materials must comply with ASTM F136 and GOST R ISO 5832