Fig 1.
Schematic diagram showing the method of measurement for C1 (Atlas).
WD is the abbreviation of Width diameter; APD is Anteroposterior diameter; WVC is Width of vertebral canal; APDVC is Anteroposterior diameter of vertebral canal; WAT is Width of anterior tubercle; HAT is Height of anterior tubercle; WPT is Width of posterior tubercle; and HPT is Height of posterior tubercle.
Fig 2.
Schematic diagram showing the method of measurement for C2 (Axis).
MAPD is the abbreviation of Max anteroposterior diameter; MLRD is Max left-right diameter; APDVD is Anteroposterior diameter of vertebral body; WVC is Width of vertebral canal; APDVC is Anteroposterior diameter of vertebral canal; and FHA is Frontal height of axis (including the odontoid process).
Fig 3.
Schematic diagram showing the method for measurement ofC3-L5.
WVD is the abbreviation of Width of vertebral body; APDVD is Anteroposterior diameter of vertebral body; LHVD is Left height of vertebral body; RHVD is Right height of vertebral body; WVC is Width of vertebral canal; APDVC is Anteroposterior diameter of vertebral canal; WRP is Width of right pedicle; HRP is Height of right pedicle; WLP is Width of left pedicle; HLP is Height of left pedicle.
Table 1.
The atlas parameters and comparison of data from radiographic images and 3D-printed models.
Table 2.
The axis parameters and comparison of data from radiographic images and 3D-printed models.
Table 3.
The parameters of C3–C7 and comparison of data from radiographic images and 3D-printed models.
Table 4.
The parameters of T1–T12 and comparison of data from radiographic images and 3D-printed models.
Table 5.
The parameters of L1–L5 and comparison of data from radiographic images and 3D-printed models.