An understanding of the forearm surface anatomy particularly bony prominence and the cross-sectional contour is important for effective reduction and safe application of a cast.
The forearm anatomy is complex due to the presence of three major neurovascular bundles. Pin placement should avoid these structures.
In the distal radius use either the lateral or Lister’s tubercle entry point.
The anterior (Henry) approach offers good exposure of the whole length of the radius. The length of the incision depends on the extent of exposure needed.
The posterolateral (Thompson) approach offers good exposure of the middle and distal thirds of the radial shaft. The skin incision lies straight down the dorsal aspect of the forearm and its length depends on the exposure needed.