What is an ulna styloid fracture?
Wrist fractures often involve the ends of two bones in your forearm—the radius and the ulna. The bony part of your wrist next to your pinky finger is the end of the ulna, also known as the ulnar styloid process. When you break that part of the wrist, it’s called an ulnar styloid fracture.
How long does an ulnar styloid fracture take to heal?
If the ulnar styloid fracture is undisplaced or reduces with reduction of the distal radius, as happens in most cases [19], patients can be treated with an above elbow cast for 6 weeks [20].
When should ulnar styloid fracture be fixed?
Therefore, fixation of the ulnar styloid is indicated when there are large sized fragments that persist deviated after stabilization of the radius or when the distal radioulnar joint is grossly unstable.
What attaches to the styloid process of the ulna?
The rounded end of the styloid process of the ulna connects to the ulnar collateral ligament of the wrist. The radioulnar ligaments also attaches to the base of the styloid process of the ulna.
Where is the styloid process?
Styloid process is derived from the Greek word stylos, meaning a pillar. The structure is a long, cylindrical, cartilaginous bone located on the inferior aspect of temporal bone, posterior to the mastoid apex, anteromedial to the stylomastoid foramen, and lateral to the jugular foramen and carotid canal.
What is styloid process of radius?
The radial styloid process is found on the lateral surface of the distal radius bone. It extends obliquely downward into a strong, conical projection. The lateral surface is marked by a flat groove for the tendons of the abductor pollicis longus and extensor pollicis brevis.
Does the ulna have a styloid process?
The ulna is a long thin bone with a small distal head that bears the styloid process, and an expanded proximal end. The proximal end terminates in the olecranon process and bears the semilunar notch on its upper surface.
Where do you find ulnar styloid?
The ulnar styloid is located at nearly the ulnar-most (the opposite side of the humerus with the elbow flexed) and slightly dorsal aspects of the ulnar head on the axial plane. It should appear almost midway (55% dorsally) from the ulnar head on the standard lateral view of the wrist in neutral forearm rotation.
What bones have styloid process?
temporal bone of the skull – Temporal styloid process. radius bone of the lower arm – Radial styloid process. ulna bone of the lower arm – Ulnar styloid process.
What is a styloid process bone?
The styloid process is a cylindrical, slender, needle-like projection of varying lengths averaging 2 to 3 cm. The styloid process projects from the inferior part of the petrous temporal bone and offers attachment to the stylohyoid ligament and the stylohyoid, stylopharyngeus, and styloglossus muscles.
What is the purpose of styloid process of radius?
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 and abductor pollicis longus run in a flat groove.