[An imaging study on location of the anterior border of facets and the posterior border of vertebral bodies in lower cervical spine].

Objective: To explore the location of the anterior border of facets and the posterior border of vertebral bodies in lower cervical spine,and to provide a quantitative data to evaluate the correct length of transarticual screws in lower cervical spine during procedure.

Methods: One hundred standard lateral X-ray films and fifty CT films on cervical spine were used to measure the distance of the anterior border of facets and the posterior border of vertebral bodies in lower cervical spine. HS, HM and HI were defined as parameters, which means the distance between the anterior border of the superior (HS), median (HM) and inferior (HI) part of facets and the posterior border of corresponding vertebral bodies.

[Analysis of complications in scoliosis surgery].

Objective: To analyze the complications occurred in scoliosis surgery and evaluate its prevention strategy.

Methods: From June 2002 to May 2007, 86 cases of idiopathic scoliosis were treated. There were 21 male and 65 female with an average age of 17.