Table 3.
Vertebral foramen and articular process CT measurements, by breed and vertebraa.
| CT measurement | L4 | L5 | L6 | L7 | ||||
|---|---|---|---|---|---|---|---|---|
| GSD | BM | GSD | BM | GSD | BM | GSD | BM | |
| R CrAP | N = 37 | N = 16 | N = 40 | N = 18 | N = 41 | N = 18 | N = 41 | N = 18 |
| Mean (mm2) | 53.7 (16.9–98.3) | 61.0 (30.3–94.3) | 47.7 (18.2–86.00) | 53.9 (36.6–79.8) | 49.6 (17.0–83.3) | 51.6 (33.3–72.7) | 72.2 (26.2–110.7) | 69.6 (44.9–86.0) |
| Range (mm2) | ||||||||
| L CrAP | N = 37 | N = 16 | N = 40 | N = 18 | N = 41 | N = 18 | N = 41 | N = 18 |
| Mean (mm2) | 60.0 (18.9–99.4) | 58.4 (33.0–84.0) | 52.6 (14.1–90.8) | 51.8 (33.3–67.8) | 52.8 (14.1–86.5) | 56.1 (36.7–73.4) | 73.6 (26.4–113.7) | 68.3 (50.8–88.3) |
| Range (mm2) | ||||||||
| R CdAP | N = 39 | N = 18 | N = 41 | N = 18 | N = 41 | N = 18 | N = 40 | N = 18 |
| Mean (mm2) | 48.5 (27.9–75.0) | 50.3 (33.8–69.7) | 44.1 (20.6–70.0) | 49.2 (29.0–71.2) | 54.8 (27.4–96.1) | 56.8 (31.4–76.9) | 76.3 (42.3–113.8) | 67.2 (47.2–84.4) |
| Range (mm2) | ||||||||
| L CdAP | N = 39 | N = 18 | N = 41 | N = 18 | N = 41 | N = 18 | N = 40 | N = 18 |
| Mean (mm2) | 51.6 (27.8–72.2) | 55.3 (32.7–72.1) | 46.8 (19.2–74.9) | 50.1 (30.4–68.6) | 56.9 (26.4–84.4) | 57.1 (33.5–72.6) | 78.7 (40.1–111.3) | 69.8 (35.3–86.56) |
| Range (mm2) | ||||||||
| CrVF | N = 37 | N = 16 | N = 40 | N = 18 | N = 41 | N = 18 | N = 41 | N = 18 |
| Mean (cm2) | 1.21 (0.88–1.56) | 1.23 (1.02–1.58) | 1.27 (0.96–1.61) | 1.33 (1.15–1.67) | 1.12 (0.78–1.49) | 1.19 (0.98–1.52) | 0.85 (0.62–1.16) | 0.97 (0.76–1.15) |
| Range (cm2) | ||||||||
| CdVF | N = 39 | N = 18 | N = 41 | N = 18 | N = 41 | N = 18 | N = 40 | N = 18 |
| Mean (cm2) | 1.42 (0.93–1.84) | 1.50 (1.23–1.85) | 1.52 (1.11–1.95) | 1.62 (1.26–2.03) | 1.45 (1.01–1.91) | 1.53 (1.16–1.93) | 1.43 (1.19–1.81) | 1.43 (1.09–1.88) |
| Range (cm2) | ||||||||
CT, computed tomographic; L4, 4th lumbar vertebra; L5, 5th lumbar vertebra; L6, 6th lumbar vertebra; L7, 7th lumbar vertebra; GSD, German Shepherd dog; BM, Belgian Malinois dog; R, right; L, left; Cr, cranial; Cd, caudal; AP, articular process; VF, vertebral foramen; mm2, millimeters squared; cm2, centimeters squared.