Styloid process (radius)

Radial styloid process
Human arm bones diagram
Details
Identifiers
Latin	processus styloideus radii
Dorlands /Elsevier	p_34/12667668
TA	A02.4.05.015
FMA	23524
Anatomical terms of bone []

The radial styloid process is a projection of bone on the lateral surface of the distal radius bone. It extends obliquely downward into a strong, conical projection. The tendon of the brachioradialis attaches at its base, and the radial collateral ligament of the wrist attaches at its apex. The lateral surface is marked by a flat groove for the tendons of the abductor pollicis longus and extensor pollicis brevis.

Breakage of the radius at the radial styloid is known as a Chauffeur's fracture; it is typically caused by compression of the scaphoid bone of the hand against the styloid.

This article incorporates text in the public domain from the 20th edition of Gray's Anatomy (1918)