Whrist - measurements

 

 

Distal Radius fracture - RX Work-up

 

!!!! A good lateral view =  anterior surface of the pisiform lies between the anterior surface of the capitate and the volar surface of the scaphoid tuberosity.

 

Measurements on the reduction radiographs should include the following: radial inclination (normal, 22°), radial length (normal, 12 mm), ulnar variance (normal, 0-1 mm), volar tilt (normal, 11°), articular step-off, and articular gap, as displayed in the images below.

 

The amount of acceptable articular step-off is debated, but most authors believe that less than 1-2 mm is desirable.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

DISI/VISI:

 

The normal scapholunate angle is 30-60 degrees and the normal capitolunate angle is 10-20 degrees.