Oct 30, 2023 · The styloid process of the radius forms the proximal border of the anatomical snuff box and is easily palpated at the lateral base of the body of the radius, proximal to the base of the thumb.

Dec 9, 2022 · The lower (distal) end of your radius forms the top of your wrist joint. It’s wider than the rest of your radius where it meets your scaphoid and lunate (wrist or carpal bones). The distal end of the radius includes: Styloid process. Ulnar notch.

The radial styloid process is found on the lateral surface of the distal radius bone. [1] It extends obliquely downward into a strong, conical projection. The tendon of the brachioradialis attaches at its base. [2] The radial collateral ligament of the wrist attaches at its apex.

A chauffeur fracture happens when the end of the radius bone (radial styloid process) in your forearm breaks. Chauffeur fractures occur from trauma because of falls, accidents or sports injuries. Providers can treat your broken bone with a cast, external fixation device or surgery.

Sep 7, 2018 · When the radial tuberosity is facing anteriorly (or facing you), the styloid process of the radius should be on the same side as the thumb. Holding the bone in this manner helps determine whether it is the left or right radius.

Nov 1, 2024 · In the distal region, the radial shaft expands to form a rectangular end. The lateral side projects distally as the styloid process. In the medial surface, there is a concavity, called the ulnar notch, which articulates with the head of ulna, forming the distal radioulnar joint.

Sep 12, 2024 · Chauffeur fractures, also known as Hutchinson fractures or backfire fractures, are intra-articular fractures of the radial styloid process. The radial styloid is within the fracture fragment, although the fragment can vary markedly in size.

Dec 13, 2020 · The radial styloid process projects obliquely downward from the distal end of the radius. It serves as the point of attachment for the brachioradialis muscle and the radial collateral ligament. Laterally, the tendons of extensor pollicis brevis …

The lateral surface of lower extremiity of radius is prolonged obliquely downward into a strong, conical projection, the radial styloid process, which gives attachment by its base to the tendon of the Brachioradialis, and by its apex to the radial collateral ligament of the wrist-joint.

The location of the ulnar styloid process can be confusing because the radius (and the hand) rotates around the ulna. The ulnar styloid process can be located either volar or dorsal to the hand when the forearm is pronated or supinated ( Figs. 7 and 8 ).