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Bones of the Upper Limb: Ulna

Bones of the Upper Limb: Ulna

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...

Bones of the Upper Limb: Radius

Bones of the Upper Limb: Radius

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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Staple Fixation in Ulnar-Shortening Osteotomies.

Gabrielle Bui¹, Miranda J Rogers¹, Christian Shigley¹

¹Department of Orthopaedics and Sports Medicine, University of Washington, Seattle, WA.

Journal of Hand Surgery Global Online

|July 31, 2023

Summary

Ulnar impaction syndrome can lead to wrist pain. This report details treating nonunion after ulnar-shortening osteotomy using a nitinol staple and plate, suggesting further study for long-term outcomes.

Area of Science:

Orthopedic Surgery
Hand and Wrist Surgery
Musculoskeletal Research

Background:

Ulnar-sided wrist pain is often attributed to ulnar impaction syndrome.

Keywords:

Fixation Nonunion Osteotomy Shortening Staples Ulna

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Ulnar-shortening osteotomy is a surgical option for refractory cases.

Potential complications include hardware irritation and nonunion.