Clinical significance of CT image digital screw channel analog measurement of C4-C6 anterior fixed parameters
Fu Yu
Lin Bing
Li Xiao-he
Abstract：BACKGROUND:Although anterior cervical surgery approach and anatomical structure were relatively complex, with big risk, it can stably fix cervical anterior column of the main load-bearing, and its relapse rate is relatively low. Because this technique is relatively new, there is lack of related fixation parameters in the clinic.
<br> OBJECTIVE: To measure fixed parameters of C4-C6 anterior approach and to provide references for extensive treatment of segmental anterior fixation.
<br> METHODS:CT imaging data of 35 patients without C4-C6 cervical lesions, who were examined from January 2009 to December 2012, were selected in this study. There were 20 males and 15 females at the age of 25-50 years old, averagely 41.2 years. The image data were rebuilt by Mimics16.01 software. Moreover, we measured vertebral anteroposterior and transverse diameters, vertebral height, anteroposterior and transverse diameters of vertebrae transverse foramen, the distance of medial borders of left and right transverse foramen, the angle and length of the left and right pedicle axis and sagittal and horizontal axes.
<br> RESULTS AND CONCLUSION: The vertebral transverse diameter of C4-C6 gradualy increased from (26.67±0.25) mm to (32.89±0.12) mm; anterior and posterior diameter of C4-C6 gradualy increased from (6.89±0.12) mm to (8.85±0.44) mm, showing significant differences between different segments (P < 0.05). In vertebral median sagittal plane, anterior, middle and posterior height from C4 [anterior (7.99±0.51) mm, middle (7.09±0.42) mm, posterior (7.76±0.49) mm], to C6 [anterior (9.89±0.45) mm, middle (8.42±0.75) mm, posterior (8.84±0.26) mm], showing significant difference among vertebral bodies (P < 0.05). Anteroposterior and transverse diameters of vertebrae transverse foramen gradualy increased with increased vertebral order (P < 0.05). The distance of medial borders of C4-C6 left and right transverse foramen gradualy increased from (25.10±0.45) mm to (28.89±0.56) mm, showing significant differences among different segments (P < 0.05). The angle and length of the left and right pedicle axis and sagittal and horizontal axes gradualy increased with increased vertebral order (P < 0.05).
Keywords：Subject headings：Cervical VertebraeAnatomyInternal Fixators
Publication Date：2015-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：6( 606-611 )