USS II Monoaxial
The Anterior Vertebral Body Screws and the Washers for the Universal Spine System II (USS II) are designed for anterior spinal deformity corrections and stabilization with anterior instrumentation. The screws feature a cancellous thread, dual core, and have large thread flanks providing enhanced pull-out strength compared to normal pedicle screws. This provides a benefit in adolescent idiopathic scoliosis.
The screws are made of titanium alloy (TAN) and available in outer diameters 6.2 mm and 8.0 mm and lengths from 2060 mm.
The washers reinforce the seating of the screws in an end vertebra for anterior stabilization and distribute the force exerted by the screw to the bone. The angled washers provide a fixed angle with the screw and prevent the screw from stripping. The washers are available in a flat and an angled version with diameters of 1315 mm.
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