Table 8 Comparison of geometric measurements among studies
From: Study on geometry and morphology of proximal humerus in Northern Chinese population based on 3-D CT
Anatomical parameter | Western cohort | Eastern Asian cohort | |||
|---|---|---|---|---|---|
Sample size | Mean ± SD | Sample size | Mean ± SD | P Value | |
Inclination angle (°) | 1121 | 137.2 ± 5.5 | 558 | 134.1 ± 4.4 | < 0.001* |
Humeral head curvature on coronal humeral head plane (mm) | 1179 | 25.2 ± 3.7 | 558 | 22.2 ± 3.4 | < 0.001* |
Humeral head thickness on coronal humeral head plane (mm) | 487 | 16.7 ± 2.1 | 398 | 17.0 ± 1.9 | 0.032 |
Humeral head diameter on coronal humeral head plane (mm) | 1037 | 49.1 ± 6.7 | 160 | 43.9 ± 3.9 | < 0.001* |
Humeral head arc on coronal humeral head plane (°) | 313 | 147.7 ± 7.4 | 218 | 152.8 ± 6.1 | < 0.001* |
Medial offset (mm) | 314 | 6.6 ± 2.0 | 500 | 6.0 ± 1.8 | < 0.001* |
Posterior offset (mm) | 293 | 1.5 ± 1.7 | 500 | 1.6 ± 2.0 | 0.463 |