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Bones of the Upper Limb: Radius01:09

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 short...
Bones of the Upper Limb: Ulna01:15

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 of the...

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Treatment of Madelung's deformity.

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[Vascularized pisiform transfer in place of lunatum for Kienböck's disease].

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The pathology of the long ulna: anatomy and treatment.

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Distal scaphoid excision in scaphoid-trapezium-trapezoid arthritis.

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Chondrocalcinosis of the wrist.

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Related Experiment Video

Updated: Jul 4, 2026

Ultrasound-Guided Needle Release Combined with Corticosteroid Injection for the Treatment of Supinator Syndrome
05:18

Ultrasound-Guided Needle Release Combined with Corticosteroid Injection for the Treatment of Supinator Syndrome

Published on: May 26, 2023

[Scaphoid malunion].

P Saffar1

  • 1Institut Français de Chirurgie de la Main, Paris, France. psaffar@ifcm.org

Chirurgie De La Main
|July 1, 2008
PubMed
Summary

Scaphoid malunion, often difficult to diagnose, can cause carpal instability and arthritis. Surgical correction using scaphoid osteotomy and bone grafting offers a successful treatment for symptomatic cases.

Area of Science:

  • Orthopedic Surgery
  • Hand Surgery
  • Radiology

Background:

  • Scaphoid fractures can lead to malunion, characterized by abnormal healing positions like flexion and shortening, primarily affecting the mid or distal scaphoid.
  • This malunion can disrupt carpal mechanics, potentially causing osteoarthritis, pain, and reduced motion and strength.
  • Existing malunions may present with distal fragment rotation or irregular bone contours, both contributing to arthritis development.

Purpose of the Study:

  • To review the diagnosis and management of symptomatic scaphoid malunion.
  • To highlight the utility of the intrascaphoid angle of Amadio in quantifying deformity.
  • To discuss surgical correction techniques for scaphoid malunion.

Main Methods:

  • Deformity assessment using comparative X-rays, special views, and carpal indices.

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Metacarpal Small Incision for Carpal Tunnel Syndrome
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Metacarpal Small Incision for Carpal Tunnel Syndrome

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Related Experiment Videos

Last Updated: Jul 4, 2026

Ultrasound-Guided Needle Release Combined with Corticosteroid Injection for the Treatment of Supinator Syndrome
05:18

Ultrasound-Guided Needle Release Combined with Corticosteroid Injection for the Treatment of Supinator Syndrome

Published on: May 26, 2023

Metacarpal Small Incision for Carpal Tunnel Syndrome
04:08

Metacarpal Small Incision for Carpal Tunnel Syndrome

Published on: April 5, 2024

  • Utilizing specialized software for precise measurement of malunion.
  • Surgical intervention involving scaphoid osteotomy, trapezoidal bone grafting, and screw fixation.

    • Main Results:

    • Scaphoid osteotomy with bone grafting and screw fixation has demonstrated success in literature for correcting malunion.
    • All reported cases achieved healing after this surgical procedure.
    • The technique is effective even in previously operated cases for nonunion.

    Conclusions:

    • Symptomatic scaphoid malunion requires precise assessment and can be effectively treated surgically.
    • Scaphoid osteotomy combined with bone grafting provides a reliable solution for malunion correction.
    • This surgical approach is a viable option for symptomatic healed scaphoids, including those with prior nonunion treatment.