Execution:
- X-Rays should be requested in the following cases:
- Mechanism of injury was a fall or blunt trauma
- Patient is younger than 12 or older than 50 years
- Patient is unable to walk 4 weight-bearing steps
| Study | Reliability | Sn | Sp | LR+ | LR- |
| Cheung et al. (2013) | ΔΈ=0.71 | 86 | 51 | 1.76 | 0.27 |
| Comment: A negative likelihood ratio of 0.27 is not enough to rule out a fracture. However it moderately reduces the post-test chance of having a fracture. | |||||
