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Question answered yes/no (1/0) defining the fracture groups of proximal humerus fractures. The “0”s have been omitted for clarity
| A1 | A1.3 | A2 | A3 | B1 | B2 | B3 | C1 | C2 | C2.3 | C3 | C3.1 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Two-part extra-articular | 1 | 1 | 1 | 1 | ||||||||
| Tuberosity only | 1 | |||||||||||
| Three-part, extra-articular – bifocal | 1 | 1 | 1 | |||||||||
| Four-part, articular | 1 | 1 | 1 | 1 | ||||||||
| Glenohumeral dislocation | 1 | 1 | 1 | |||||||||
| Metaphyseal impaction/stable | 1 | 1 | 1 | |||||||||
| Anatomical neck only | 1 | |||||||||||
| Head split | 1 | |||||||||||
| Proximal segment (inside the square) | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
