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Related Concept Videos

Bones of the Upper Limb: Ulna01:15

Bones of the Upper Limb: Ulna

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The ulna and radius are parallel bones of the antebrachium or the forearm. The ulna lies medially and consists of a bony tip called the olecranon process at its proximal end. This hook-like projection articulates with the olecranon fossa of the humerus and forms the "hinged" ulnohumeral part of the elbow joint. This joint facilitates forearm extension and flexion while preventing its hyperextension. Similarly, the coronoid process, another bony projection on the proximal/anterior side...
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Bones of the Upper Limb: Radius01:09

Bones of the Upper Limb: Radius

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The radius is longer of the two bones that make up the human antebrachium or forearm. At the proximal end, the radius articulates with the capitulum of the humerus and the radial notch of the ulna to form the elbow joint. At the distal end, the radius articulates with the ulna via the ulnar notch, forming the distal radioulnar joint. Distally, the radius also attaches to the carpal wrist bones (scaphoid and lunate) to form the radiocarpal joint.
The radius has a nail-shaped head, and a...
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Related Experiment Video

Updated: Jan 12, 2026

Novel Triple-Loop Technique for Suturing TFCC Injuries without Transosseous Tunnel
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Novel Triple-Loop Technique for Suturing TFCC Injuries without Transosseous Tunnel

Published on: May 23, 2025

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Does ulnar variance relate with TFCC lesions?

Yusuf Can1, Banu Karaalioğlu2, Mehmet Kürşat Yılmaz3

  • 1Department of Radiology, Istanbul Medipol University, Istanbul, Turkey. drysfcn@gmail.com.

BMC Musculoskeletal Disorders
|November 7, 2025
PubMed
Summary

No abstract available in PubMed .

Keywords:
Carpal chondromalaciaMRITriangular fibrocartilage complexUlnar variance

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