A patient preseted with pain in the foot.X ray shows the following features.What can be the most possible diagnosis?
A. Hawkin’s Fracture
B. Chopart’s fracture-dislocation
C. Pott’s Fracture
D. Cotton Fracture
Ans:B. Chopart’s fracture-dislocation.
Image shows:Black arrow points to talus which is dislocated from navicular (yellow
arrow) at talonavicular joint. Calcaneus (blue arrow) is dislocated from the cuboid (red arrow), which is also fractured. The dislocation is at the calcaneocuboid joint.
- Chopart fracture-dislocation involves the midtarsal joints (talonavicular and calcaneocuboid joints)
- Typically caused by falls from a height, motor vehicle accidents and severe twisting injuries such as can occur in basketball players who land on a plantar-flexed and inverted foot
- Usually result from severe trauma
- Most commonly, there is medial displacement of the distal fragments (80%).
- Prognosis : Prompt reduction and early range of motion generally result in favorable outcome