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Number of posterior malleolus fractures per fracture class, as well as the number of cases not recognized preoperatively or only postoperatively
| Total | Spiral fracture | Type A | Type B | Middle third | Distal third | |
|---|---|---|---|---|---|---|
| n | 103 | 65 | 51 | 14 | 39 | 64 |
| Posterior malleolus fracture | 31 | 30 | 29 | 1 | 5 | 26 |
| Preoperative unrecognized | 5 | 5 | 5 | 0 | 1 | 4 |
| Second operation | 3 | 3 | 3 | 0 | 0 | 3 |
