styloid process of radius (radial styloid process)

Introduction

A thick pointed palpable projection on the lateral side of the distal extremity of the radius (approx. 1 cm more distal than the ulnar process). Since it extends more distally than the ulnar process, more ulnar deviation than radial deviation of the wrist is possible.

• easier to palpitate when the thumb is abducted

The relationship of the radial & ulnar process is Important in:

• diagnosis of certain wrist injuries (e.g., Colles fracture)

More general terms

• bony process

Additional terms

• styloid process of temporal bone
• styloid process of ulna (ulnar styloid process)

Component of

• radius