Table 2 Means (SD) and 95% CIs for the age, body weight, and the radiographic parameters calculating lateral (Norberg and Centre edge angles) and dorsal (width and area indices) acetabular femoral head coverage, acetabular slope angle, and inclination angle for Labrador Retrievers and German Shepherds with normal and near-normal coxofemoral joints (CFJs)
Variable | Labrador Retriever | German Shepherd | ||||||
|---|---|---|---|---|---|---|---|---|
Normal CFJ (n = 46) | Near-normal CFJ (n = 28) | Normal CFJ (n = 42) | Near-normal CFJ (n = 34) | |||||
95% CI | Mean (SD) | 95% CI | Mean (SD) | 95% CI | Mean (SD) | 95% CI | Mean (SD) | |
Age (year) | 8.6–10.8 | 9.7 (2.8) | 7.6–9.6 | 8.6 (2.1) | 3.8–6.1 | 5.0 (3.3)†| 2.6–5.3 | 4.0 (3.6)• |
Body weight (kg) | 30.0–34.6 | 32.3 (5.8) | 30.6–35.2 | 32.9 (5.4) | 33.4–38.2 | 35.8 (6.6)†| 31.8–37.2 | 34.5 (6.5) |
Norberg angle (degree) | 109.3–111.0 | 110.2 (2.8) | 108.3–110.3 | 109.3 (2.6) | 106.8–108.3 | 107.5 (2.3)†| 102.8–103.6 | 103.2 (1.1)*• |
Centre-edge angle (degree) | 28.4–29.2 | 28.8 (1.2) | 27.0–28.6 | 27.8 (2.1)* | 26.1–27.1 | 26.6 (1.6)†| 21.8–22.7 | 22.3 (1.3)*• |
Dorsal acetabular coverage width index | 0.54–0.57 | 0.56 (0.05) | 0.51–0.56 | 0.54 (0.06) | 0.51–0.55 | 0.53 (0.05)†| 0.49–0.54 | 0.51 (0.07) |
Dorsal acetabular coverage area index | 0.58–0.61 | 0.60 (0.05) | 0.53–0.57 | 0.55 (0.06)* | 0.53–0.56 | 0.55 (0.05)†| 0.50–0.55 | 0.53 (0.07) |
Acetabular slope angle (degree) | 6.7–9.1 | 7.9 (4.1) | 6.9–9.3 | 8.1 (3.0) | 11.5–14.6 | 13.1 (4.9)†| 11.2–14.3 | 12.7 (4.5)• |
Inclination angle (degree) | 128.6–132.7 | 130.6 (6.8) | 134.2–138.7 | 136.5 (5.8)* | 128.7–132.1 | 130.4 (5.4) | 128.2–132.1 | 130.2 (5.6)• |