Abstract:

Objective　To explore the method for establishing digital model and three-dimensional visualization of the correlated structures of posterior cervical approach.  Methods　Basing on CT and MRI continuous 2-Dimensional pictures from the vertex to the inferior border of the T3 of one healthy volunteer，half-auto cut and reconstruction was taken on skeleton，muscles and nerves with the Mimics software. The tiny anatomic structures were reconstructed with the MedCAD module. Three-dimensional model of posterior cervical approach and its surrounding structures was successfully displayed.   Results    A three-dimensional digital model of the correlated structures of posterior cervical approach was established. The position relation of different structures was successfully presented, such as the skeleton; 17 groups of muscles covering the nape, formed 4 layers from the superficial to the deep; 4 kinds of ligaments; ramus posterior nervorum spinalium of C1-T2; and the superficial cervical muscles.  Conclusions　On the basis of three-dimensional visualization model of the nape，the correlated important structures of posterior cervical approach can be displayed step by step, which is a favorable tool for anatomic teaching and operation training.

Key words:  Posterior cervical approach!Cross section!Digit model