# How do you calculate radial inclination?

## How do you calculate radial inclination?

The radial inclination is measured by drawing a line perpendicular to the long axis of the radius and a tangential line from the radial styloid to the ulnar corner of the lunate fossa. The volar tilt, or volar inclination, is measured on the lateral view.

How do you measure radial length?

Traditionally in adults radial height is measured as the distance between two parallel lines. One line perpendicular to the long axis of the radius is drawn along the ulnar aspect of the articular surface and the other line is drawn at the tip of the radial styloid. A normal radial height in adults is 9.917.

The radial inclination is a measurement made on the AP projection of the wrist as an angle of the distal radial surface with respect to a line perpendicular to the shaft. A normal range is considered at around 21-25° 5. It can increase in the setting of certain fractures.

### How is volar tilt distal radius measured?

Volar tilt is a measurement made on the lateral projection of the wrist as an angle of the distal radial surface with respect to a line perpendicular to the shaft. A normal range is considered at around 10-25° 1.

What is the normal radial height?

A normal radial height is within the range 8–14 mm, the values range from publication to publication 1,2. However, it is widely agreed upon that a loss in radial height is an indicator of poor function.

Radial height (also known as radial length) is the distance between two lines drawn perpendicular to the long axis of the radius on the AP projection from the apex of the radial styloid and level of the ulnar aspect of the articular surface.

#### What is dorsally angulated?

The dorsal angulation is the angle between a line perpendicular to the long axis of the radius and a line parallel to the distal articular surface.

What is volar flexion of wrist?

bending the hand toward the volar surface of the forearm.