Table 2.
Summary of the main characteristics of fractures and scar patterns in the PTA group
| Mean delay from original trauma to TKA (SD) Initial management of the fracture: | 14 (7) years | |
| Operatively | 28 | |
| Nonoperatively | 5 | |
| Fracture location: | Intra-articular | 22 |
| Extra-articular | 11 | |
| Bone involved: | Tibia | 23 |
| Femur | 6 | |
| Tibia and femur | 4 | |
| AORI bone defect classification: a | Type 1 | 20 |
| Type 2 | 13 | |
| Number of scars: | 1 scar | 14 |
| 2 scars | 10 | |
| 3 scars and more | 4 |
a
Anderson Orthopaedics Research Institute bone defect classification (Jacofsky el al. 2010).