1, silver fork-like deformity
The distal end of the fracture along with the hand moves to the dorsal side, with a depression on the proximal side.
2, spear-like deformity
The distal end of the fracture along with the hand moves to the radial side, the axis of the middle finger is not on the same plane as the axis of the radius.
3, straight edge test
Normally, place the straight edge on the ulnar side of the wrist, the distance from the styloid process of the ulna to the straight edge is1centimeters above, when the distal radius fracture occurs, the styloid process of the ulna can touch the straight edge.
4, the linear relationship between the styloid process of the ulna and the styloid process of the radius
After the distal radius fracture, the styloid process of the ulna and the styloid process of the radius are almost in a straight line, normally the styloid process of the radius is longer than the styloid process of the ulna in the distal direction1~1.5centimeters.
There are different methods of fracture classification, currently widely used is Frykman's classification, based on the injury of the joint surface, the injury of the distal radioulnar joint, whether there is a fracture at the distal ulna, etc., the distal radius fractures are divided into8类。
(1)The fracture is outside the joint, without any fracture at the distal ulna.
(2)The fracture is outside the joint, with a fracture at the distal ulna.
(3)The fracture is within the joint, affecting the radiocarpal joint, but without any fracture at the distal ulna.
(4)The fracture is within the joint, affecting the radiocarpal joint, with a fracture at the distal ulna.
(5)The fracture is within the joint, affecting the distal radioulnar joint, without any fracture at the distal ulna.
(6)(Εσωτερική καταστροφή, επηρεάζει τον κατώτερο οστού του χεριού, υπάρχει καταστροφή του οστού του χεριού).
(7)(Εσωτερική καταστροφή, επηρεάζει τον καρπό και τον κατώτερο οστού του χεριού, αλλά χωρίς καταστροφή του οστού του χεριού).
(8)(Εσωτερική καταστροφή, επηρεάζει τον καρπό και τον κατώτερο οστού του χεριού, υπάρχει καταστροφή του οστού του χεριού).