23 July 2021 : Clinical Research
Evaluation of Sanders Type 2 Joint Depression Calcaneal Fractures in 197 Patients from a Single Center Using Three-Dimensional Mapping
Xiaobo Guo1ABCDEF*, Xiaonan Liang2AB, Jiangtao Jin1D, Jinwei Chen1EF, Junyang Liu3B, Jinming Zhao4ABCDEFDOI: 10.12659/MSM.932748
Med Sci Monit 2021; 27:e932748
Table 2 Fracture distribution in APC and middle talar articular surface (N=197).
| Sanders type 2A (n=109) | Sanders type 2B (n=46) | Sanders type 2C (n=42) | Type 2A vs 2B | Type 2A vs 2C | Type 2B vs 2C | |
|---|---|---|---|---|---|---|
| n (%) | n (%) | n (%) | P | P | P | |
| Zone | ||||||
| A | 92 (84.4%) | 40 (87.0%) | 38 (90.5%) | 0.683 | 0.334 | 0.742 |
| B | 17 (15.6%) | 11 (23.9%) | 8 (19.0%) | 0.219 | 0.609 | 0.580 |
| C | 53 (48.6%) | 34 (73.9%) | 28 (66.7%) | 0.004 | 0.046 | 0.457 |
| D | 55 (50.5%) | 7 (15.2%) | 31 (73.8%) | <0.001 | 0.009 | <0.001 |
| Type | ||||||
| A | 11 (10.1%) | 0 (0.0%) | 1 (2.4%) | 0.034 | 0.180 | 0.477 |
| AB | 4 (3.7%) | 4 (8.7%) | 1 (2.4%) | <0.001 | <0.001 | 0.363 |
| AC | 33 (30.3%) | 27 (58.7%) | 7 (16.7%) | <0.001 | 0.090 | <0.001 |
| AD | 27 (24.8%) | 4 (8.7%) | 6 (14.3%) | 0.022 | 0.162 | 0.409 |
| ABD | 4 (3.7%) | 1 (2.2%) | 4 (9.5%) | 1 | 0.219 | 0.188 |
| ACD | 12 (11.0%) | 1 (2.2%) | 17 (40.5%) | 0.110 | <0.001 | <0.001 |