Table 2 Distribution of all humeral fractures, per segment, into AO/OTA types and groups
Proximal | Shaft | Distal | |||||||
|---|---|---|---|---|---|---|---|---|---|
Fracture type | % | Mean age | Women % | % | Mean age | Women % | % | Mean age | Women % |
A1 | 16.5 | 56.5 | 61.7 | 23.3 | 60.6 | 63.9 | 7.8 | 33.0 | 53.8 |
A2 | 18.0 | 70.5 | 74.4 | 15.3 | 61.0 | 52.5 | 23.4 | 79.4 | 76.9 |
A3 | 10.4 | 73.3 | 66.7 | 19.8 | 56.3 | 38.5 | 9.0 | 70.1 | 73.3 |
Total A | 44.9 | 66.0 | 67.9 | 58.4 | 59.2 | 52.3 | 40.1 | 68.3 | 71.6 |
B1 | 29.3 | 69.1 | 79.0 | 13.0 | 53.4 | 44.1 | 11.4 | 61.4 | 63.2 |
B2 | 13.1 | 71.4 | 78.8 | 8.8 | 58.2 | 47.8 | 3.6 | 63.2 | 66.7 |
B3 | 1.6 | 65.1 | 72.0 | 3.8 | 50.3 | 40.0 | 10.2 | 58.9 | 94.1 |
Total B | 44.0 | 69.6 | 78.7 | 25.6 | 54.6 | 44.8 | 25.1 | 60.7 | 76.2 |
C1 | 3.1 | 72.4 | 73.5 | 8.8 | 67.1 | 69.6 | 6.0 | 63.5 | 50.0 |
C2 | 6.1 | 70.9 | 74.2 | 2.7 | 71.9 | 71.4 | 10.2 | 58.6 | 58.8 |
C3 | 1.8 | 68.3 | 72.4 | 4.6 | 68.5 | 83.3 | 18.0 | 69.6 | 83.3 |
Total C | 11.1 | 70.9 | 73.7 | 16.0 | 68.3 | 73.8 | 34.1 | 65.3 | 70.2 |