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Related Concept Videos

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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Related Experiment Video

Updated: May 20, 2026

Development of a Novel Internal Fixation Model for Rat Radial Fractures: Fracture Healing Assessment and Dorsal Root Ganglion Isolation
11:21

Development of a Novel Internal Fixation Model for Rat Radial Fractures: Fracture Healing Assessment and Dorsal Root Ganglion Isolation

Published on: March 13, 2026

Distal radius volar locking plates: does a variable angle locking system confer a clinical advantage?

William J Marlow1, Rohit Singhal, Sujay Dheerendra

  • 1Macclesfield District General Hospital, Macclesfield, UK. WJMarlow@doctors.net.uk

Acta Orthopaedica Belgica
|July 25, 2012
PubMed
Summary
This summary is machine-generated.

For distal radius fractures, variable angle volar locking plates showed no significant clinical or radiological advantage over fixed angle plates. Patient outcomes and satisfaction were similar between the two fixation methods.

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Last Updated: May 20, 2026

Development of a Novel Internal Fixation Model for Rat Radial Fractures: Fracture Healing Assessment and Dorsal Root Ganglion Isolation
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Published on: March 13, 2026

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Treatment with Locking Intramedullary Nailing for Intertrochanteric Fracture of the Femur Utilizing a New Awl with a Distal Positioner

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Area of Science:

  • Orthopedic Surgery
  • Traumatology
  • Biomedical Engineering

Background:

  • Distal radius fractures are common injuries.
  • Volar locking plates are frequently used for fixation.
  • Variable angle plates offer potential advantages in screw placement compared to fixed angle plates.

Purpose of the Study:

  • To compare clinical, radiological, and subjective outcomes of distal radius fracture fixation using variable angle versus fixed angle volar locking plates.
  • To determine if variable angle plates offer superior results in terms of function, alignment, and patient satisfaction.

Main Methods:

  • Retrospective study of 107 patients with distal radius fractures.
  • Comparison of fixation with variable angle (n=65) and fixed angle (n=42) volar locking plates.
  • Assessment of radiological parameters, range of motion, and patient-reported outcomes (VAS, Mayo Wrist, Quick DASH scores).

Main Results:

  • No significant differences were observed in radiological parameters between the two groups.
  • Proportional range of motion was comparable between variable angle and fixed angle plate fixation.
  • Subjective outcome scores (Visual Analogue Scale, Mayo Wrist, Quick DASH) did not differ significantly between the groups.
  • Complication and secondary operation rates were similar (five in each group).

Conclusions:

  • Neither variable angle nor fixed angle volar locking plates demonstrated clinical superiority for distal radius fracture fixation.
  • Both plate systems provide comparable radiological and clinical outcomes.
  • The choice between variable angle and fixed angle plates may not significantly impact patient outcomes.