Chauffeur's Fracture Radial Styloid Fractures Wheeless

Description: radial styloid fractures most commonly occur from tension forces sustained during ulnar deviation and supination of the wrist;
- strong radiocarpal ligament, particularly radioscaphocapitate ligament, avulse radial styloid from metaphysis of the radius;
- ligamentous attachments maintains alignment radial styloid to carpus, but styloid may be markedly displaced from the rest of radius;
- brachioradialis & extrinsic wrist & finger flexors & extensors exert powerful displacing force on carpus/radial styloid complex;
- fractures of styloid are frequently accompanied by dislocations of lunate