Question
A 6 year old boy falls while running and has a sore wrist.

- Describe the radiographs.
- How does this injury differ from a greenstick fracture?
- What is the evidence for treatment?
Answer
Radiographs
- Buckling (torus fracture) of the distal radial metaphyseal cortex
- No break in the opposite cortex
Buckle versus greenstick
| Feature | Buckle (torus) | Greenstick |
|---|---|---|
| Mechanism | Axial compression | Bending |
| Cortex | Compression side buckles, tension side intact | Tension side breaks, compression side bends |
| Stability | Stable | Can angulate further |
| Treatment | Splint or bandage | Cast, reduce if angulated |
Evidence
- FORCE trial (2022) showed a bandage and immediate discharge gave equivalent pain at 3 days
- No routine follow up or repeat radiographs needed
- Removable splint for comfort for about 3 weeks
- Return if pain persists or deformity develops
- Distinguish from greenstick and Salter-Harris fractures, which need more care
Related pages
Author Contributions
Orthofracs team
Reviewed by Professor Phong Tran, Head of Orthopaedic Surgery, Western Health. Last updated 10 October 2026.