Computed Tomographic Measurement Of Cervical Pedicles For Transpedicular Fixation In Han、Kazakhs And Uygur Population

OBJECTIVES: The linear parameters of the lower cervical pe-dicles weremea-sured and compared under CT scanning in Han、Kazakhs and Uygur populati-on inXinJiang Autonomous Region. METHODES: The cervic-al pedicles from C3to C7werescanned in1mm for150individuals (50Han、50Kazakhs、50Uygur) via GE light speed64layers CT scanner. The par-ameters were sent into computer software (GE AdvantageWorkstation4.2) and processed by multiplanar reformation (MPR). All the data abovewere proces-sed by the software of SPSS17.0.RESULTS: the data of anatomy processedb-y the SPSS17.0system, The difference was statistically significant(P<0.05), We coulddraw the conclusion that there was a difference on the same cervical se-gments in Han、Kazakhs and Uygur. In the female, there were some signific-ant difference in PH（C3~C7）、PW(C3~C6)、MSL（C3~C7）、PL （C3~C7）、SART(C6~C7)、SARS(C3、C5、C6、C7)between the three ethnic groups In the male, there were some significantdifference in PH（C3~C7）、PW(C3、C4、C5)、MSL（C3~C7）、PL（C3~C7）、SART(C5~C7)、SARS(C5) betwe-en the three ethnic groups. There was no significant differenceamong other linear parameters of the cervical pedicle.The age compared no significantin our groups. CONCLUSION: For the individual anatomic and mor-phologicalappearance of lower cervical pedicle varied a lot, we suggest that it is necessary to carryout CT examnation, including X-ray, and then measure precisely before transpedicularscrew fixation.