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Related Concept Videos

Bones of the Upper Limb: Radius01:09

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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.
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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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The upper limb consists of the arm, forearm, wrist, and hand bones. The humerus is the single bone of the upper arm region. Proximally, it has a large, spherical, smooth head that articulates with the glenoid cavity of the scapula to form the glenohumeral or shoulder joint. The margin of the head is the anatomical neck, a residual epiphyseal plate. Laterally it extends to form bony projections called the greater tubercle and the lesser tubercle. Next to the tubercles is the surgical neck, a...
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Apical-Radial (A-R) Pulse Assessment
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Radial head dislocation during proximal radial shaft osteotomy.

Antony Hazel1, Randy R Bindra1

  • 1Department of Orthopaedic Surgery, Loyola University Medical Center, Maywood, IL.

The Journal of Hand Surgery
|February 25, 2014
PubMed
Summary

This case report details a forearm malunion surgery where a radial head subluxation was identified and corrected. The revision from opening to closing wedge osteotomy improved alignment and wrist rotation.

Keywords:
Forearmdislocationmalunionosteotomy

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Area of Science:

  • Orthopedic surgery
  • Traumatology
  • Upper extremity reconstruction

Background:

  • A 48-year-old female presented with a long-standing both-bone forearm malunion.
  • Symptoms included wrist pain and limited rotational function.

Observation:

  • Preoperative templating was performed for radius and ulna osteotomies.
  • Intraoperative discovery of radial head subluxation during radial shaft osteotomy.

Findings:

  • The initial opening wedge radial osteotomy was revised to a closing wedge technique.
  • This revision successfully improved forearm alignment and restored rotational capacity.

Implications:

  • Highlights the importance of intraoperative assessment for radial head stability during forearm osteotomies.
  • Provides insights into managing intraoperative complications for improved surgical outcomes.
  • Offers strategies to prevent similar issues in future forearm malunion reconstructions.