Table 1 Desciption of the points and planes used in the objective staging system
From: Evaluation of an objective staging system for assessment of cervical vertebral maturation
No. | Point | Description |
|---|---|---|
1 | C3lp | The most posterior point on the inferior border of the body of C3. |
2 | C3ua | The most anterior point of the superior border of the body of C3. |
3 | C3up | The most posterior point of the superior border of the body of C3. |
4 | C4lp | The most posterior point on the inferior border of the body of C4. |
5 | C4ua | The most anterior point of the superior border of the body of C4. |
6 | C4up | The most posterior point of the superior border of the body of C4. |
7 | C2d | The most superior point of the inferior border of the body of C2. |
8 | C3d | The most superior point of the inferior border of the body of C3. |
9 | C4d | The most superior point of the inferior border of the body of C4. |
10 | C2la | The most anterior point on the inferior border of the body of C2. |
11 | C2lp | The most posterior point on the inferior border of the body of C2. |
12 | C3la | The most anterior point on the inferior border of the body of C3. |
13 | C4la | The most anterior point on the inferior border of the body of C4. |
14 | C3um | The middle point on the superior border of the body of C3. |
15 | C3am | The middle point on the anterior border of the body of C3. |
16 | C4um | The middle point on the superior border of the body of C4. |
17 | C4am | The middle point on the anterior border of the body of C4.” |
Plane | Description | |
1 | CL2, CL3, CL4 | Connecting points Cla to Clp at the lower border of each CV. |
2 | CS3, CS4 | Superior border of C3 and C4 connecting points Cua and Cup for C3 and C4 |
3 | CA3, CA4 | Anterior border of C3 and C4 connecting points Cua-Cla for C3 and C4 |
4 | CP3, CP4 | Posterior border of C3 and C4 connecting points Cup-Clp for C3 and C4 |
5 | BW | Width of CV body, the perpendicular linear distance from Cum to Plane CP. |
6 | BH | Height of CV body, the perpendicular linear distance from Cum to Plane CL. |