Table 1 Cortical thickness in the tibial diaphysis (actual values)
Actual values (mm) | Young group (n = 31) | Elderly group (n = 54) | ||||||
|---|---|---|---|---|---|---|---|---|
Men (n = 12) | Women (n = 19) | Men (n = 29) | Women (n = 25) | |||||
mean | 95%CI | mean | 95%CI | mean | 95%CI | mean | 95%CI | |
Total diaphysis | ||||||||
Medial | 5.7 | 5.4–6.0 | 5.1 | 4.7–5.5 | 5.7 | 5.5–5.9 | 5.6 | 5.5–5.8 |
Lateral | 6.2 | 5.5–6.8 | 4.7 | 4.5–5.0 | 5.6 | 5.4–5.8 | 5.4 | 5.2–5.6 |
Anterior | 10.2 | 8.9–11.5 | 8.2 | 7.7–8.8 | 7.9 | 7.5–8.2 | 7.3 | 7.0–7.6 |
Posterior | 6.4 | 5.9–6.8 | 5.8 | 5.3–6.3 | 5.3 | 5.2–5.5 | 5.0 | 4.8–5.1 |
Proximal diaphysis | ||||||||
Medial | 5.1 | 4.8–5.3 | 4.6 | 4.3–4.9 | 5.6 | 5.4–5.8 | 5.5 | 5.3–5.7 |
Lateral | 5.5 | 4.9–6.1 | 4.2 | 4.0–4.4 | 5.5 | 5.3–5.7 | 5.3 | 5.0–5.6 |
Anterior | 8.9 | 7.4–10.3 | 7.3 | 6.7–8.0 | 7.3 | 7.0–7.7 | 7.1 | 6.8–7.4 |
Posterior | 6.2 | 5.7–6.7 | 5.4 | 4.9–5.8 | 5.3 | 5.1–5.4 | 5.1 | 4.9–5.3 |
Central diaphysis | ||||||||
Medial | 5.9 | 5.4–6.4 | 5.3 | 4.8–5.8 | 5.7 | 5.4–6.0 | 5.7 | 5.4–5.9 |
Lateral | 6.6 | 5.7–7.5 | 5.1 | 4.6–5.5 | 5.4 | 4.9–5.8 | 5.4 | 5.1–5.7 |
Anterior | 11.3 | 10.0–12.6 | 9.3 | 8.6–10.0 | 8.3 | 7.8–8.8 | 7.2 | 6.5–7.9 |
Posterior | 6.7 | 6.2–7.2 | 6.2 | 5.6–6.7 | 5.3 | 5.1–5.5 | 4.8 | 4.7–4.9 |
Distal diaphysis | ||||||||
Medial | 6.3 | 5.9–6.8 | 5.9 | 5.3–6.5 | 6.1 | 5.8–6.4 | 5.9 | 5.7–6.1 |
Lateral | 6.7 | 5.9–7.5 | 5.2 | 4.8–5.6 | 5.9 | 5.5–6.3 | 5.6 | 5.3–6.0 |
Anterior | 11.0 | 9.6–12.3 | 8.4 | 7.8–9.0 | 8.9 | 8.3–9.5 | 7.6 | 7.2–8.1 |
Posterior | 6.2 | 5.7–6.7 | 6.0 | 5.5–6.6 | 5.6 | 5.3–5.8 | 4.8 | 4.7–4.9 |