Table 1 Patients of study divided by sex, age range, type of treatment, and mechanism of injury according to AO-OTA [14] and Neer [15] classifications. (y, years old; N, number of cases; % group, percentage cases within this AO-OTA group or NEER group classification; % age, percentage cases within this range of age)
AO_OTA classification | All | Neer classification | All | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
A | B | C | Non displaced | 2-part | 3-part | 4-part | Fracture-dislocation | ||||||
Female | < 50y | N | 26 | 4 | 1 | 31 | 17 | 11 | 2 | 1 | 0 | 31 | |
% age | 83.9% | 12.9% | 3.2% | 100% | 54.8% | 35.5% | 6.5% | 3.2% | 0.0% | 100% | |||
% group | 11.1% | 1.8% | 2.6% | 6.3% | 14.8% | 6.9% | 1.2% | 3.0% | 0.0% | 6.3% | |||
> 50y | N | 208 | 219 | 37 | 464 | 98 | 149 | 159 | 32 | 26 | 464 | ||
% age | 44.8% | 47.2% | 8.0% | 100% | 21.1% | 32.1% | 34.3% | 6.9% | 5.6% | 100% | |||
% group | 88.9% | 98.2% | 97.4% | 93.7% | 85.2% | 93.1% | 98.8% | 97.0% | 100.0% | 93.7% | |||
Male | < 50y | N | 21 | 7 | 1 | 29 | 13 | 8 | 5 | 1 | 2 | 29 | |
% age | 72.4% | 24.1% | 3.4% | 100% | 44.8% | 27.6% | 17.2% | 3.4% | 6.9% | 100% | |||
% group | 26.3% | 13.5% | 9.1% | 20.3% | 32.5% | 17.4% | 13.9% | 9.1% | 20.0% | 20.3% | |||
> 50y | N | 59 | 45 | 10 | 114 | 27 | 38 | 31 | 10 | 8 | 114 | ||
% age | 51.8% | 39.5% | 8.8% | 100% | 23.7% | 33.3% | 27.2% | 8.8% | 7.0% | 100% | |||
% group | 73.8% | 86.5% | 90.9% | 79.7% | 67.5% | 82.6% | 86.1% | 90.9% | 80.0% | 79.7% | |||
Treatment | Conservative | < 50y | N | 35 | 7 | 0 | 42 | 30 | 8 | 3 | 0 | 1 | 42 |
% age | 83.3% | 16.7% | 0.0% | 100% | 71.4% | 19.0% | 7.1% | 0.0% | 2.4% | 100% | |||
% group | 13.0% | 3.0% | 0.0% | 8.2% | 19.9% | 4.9% | 1.9% | 0.0% | 3.3% | 8.2% | |||
> 50y | N | 235 | 224 | 12 | 471 | 121 | 155 | 153 | 13 | 29 | 471 | ||
% age | 49.9% | 47.6% | 2.5% | 100% | 25.7% | 32.9% | 32.5% | 2.8% | 6.2% | 100% | |||
% group | 87.0% | 97.0% | 100% | 91.8% | 80.1% | 95.1% | 98.1% | 100.0% | 96.7% | 91.8% | |||
Surgery | < 50y | N | 12 | 4 | 2 | 18 | 0 | 11 | 4 | 2 | 1 | 18 | |
% age | 66.7% | 22.2% | 11.1% | 100% | 0% | 61.1% | 22.2% | 11.1% | 5.6% | 100% | |||
% group | 27.3% | 9.1% | 5.4% | 14.4% | 0% | 25.6% | 9.8% | 6.5% | 16.7% | 14.4% | |||
> 50y | N | 32 | 40 | 35 | 107 | 4 | 32 | 37 | 29 | 5 | 107 | ||
% age | 29.9% | 37.4% | 32.7% | 100% | 3.7% | 29.9% | 34.6% | 27.1% | 4.7% | 100% | |||
% group | 72.7% | 90.9% | 94.6% | 85.6% | 100% | 74.4% | 90.2% | 93.5% | 83.3% | 85.6% | |||
Mechanics | High energy | N | 15 | 6 | 2 | 23 | 5 | 9 | 5 | 2 | 2 | 23 | |
% Hihg E | 65.2% | 26.1% | 8.7% | 100% | 21.7% | 39.1% | 21.7% | 8.7% | 8.7% | 100% | |||
% group | 4.8% | 2.2% | 4.1% | 3.6% | 3.2% | 4.4% | 2.5% | 4.5% | 5.6% | 3.6% | |||
Low energy | N | 299 | 269 | 47 | 615 | 150 | 197 | 192 | 42 | 34 | 615 | ||
% Low E | 48.6% | 43.7% | 7.6% | 100% | 24.4% | 32.0% | 31.2% | 6.8% | 5.5% | 100% | |||
% group | 95.2% | 97.8% | 95.9% | 96.4% | 96.8% | 95.6% | 97.5% | 95.5% | 94.4% | 96.4% | |||