Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Stability of structures01:14

Stability of structures

259
In mechanical engineering, the stability of systems under various forces is critical for designing durable and efficient structures. One fundamental way to explore these concepts is by analyzing systems like two rods connected at a pivot point, O, with a torsional spring of spring constant k at the pivot point. This system is similar in appearance to a scissor jack used to change tires on a car. In this case, the arms of the linkage (equivalent to the rods in this system) are entirely vertical,...
259
Self-Locking Screw01:16

Self-Locking Screw

1.8K
A square-threaded screw jack is a mechanical device widely used for lifting heavy loads or applying considerable force. One of the key features that can make a screw jack more effective and reliable is its self-locking capability.
A square-threaded screw jack carrying a load is considered self-locking if the screw retains its position even after the moment applied to it is removed.
1.8K
Bones of the Upper Limb: Radius01:09

Bones of the Upper Limb: Radius

3.1K
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...
3.1K
Frictional Forces on Screws01:17

Frictional Forces on Screws

1.3K
Screws are characterized by a helical ridge known as a thread wrapped around a cylindrical shaft. They are commonly used as fasteners to hold objects together or to transmit power and motion in machines. One type of screw that is particularly useful for transmitting power is the square-threaded screw.
A jack with a square-threaded screw is a mechanical device used to lift heavy loads by applying a force at its handle. When the force is applied, the screw turns, raising the load. The screw can...
1.3K
Bones of the Upper Limb: Ulna01:15

Bones of the Upper Limb: Ulna

2.8K
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...
2.8K
Wedges01:24

Wedges

1.3K
A wedge is a simple machine that serves various purposes, such as adjusting the elevation of structural or mechanical parts, providing stability for heavy objects, and splitting a body into two parts. This versatile tool can amplify an applied force, making it easier to manipulate large or heavy objects.
Consider using a wedge to lift a heavy slab. Here, the wedge functions by converting the applied force into a much larger force directed almost perpendicular to the initial force. This...
1.3K

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Quantifying Extensor Tendon and Articular Surface Involvement During Phalangeal Intramedullary Fixation.

Journal of hand surgery global online·2026
Same author

High energy clavicle shaft fractures consistently occur at the inflection point: defining morphology and correlation with fracture patterns.

JSES international·2026
Same author

Protecting the Nerve Coaptation: Connector-Assisted Nerve Repair in Complex Injuries.

Journal of hand surgery global online·2025
Same author

Hyaluronate-Alginate Gel-Coated Porcine Small Intestine Submucosa for Nerve Protection Minimizes Extraneural Collagen Deposition in a Preclinical Model.

Journal of hand surgery global online·2025
Same author

Understanding Metacarpal Morphology and Practical Surgical Applications.

The Journal of hand surgery·2025
Same author

The Use of Knotless Suture Tape Construct vs Screw Fixation for Lisfranc Injuries: A Cadaveric Biomechanical Study.

Foot & ankle international·2024

Related Experiment Video

Updated: Sep 22, 2025

Surgical Fixation of Sternal Fractures: Preoperative Planning and a Safe Surgical Technique Using Locked Titanium Plates and Depth Limited Drilling
15:11

Surgical Fixation of Sternal Fractures: Preoperative Planning and a Safe Surgical Technique Using Locked Titanium Plates and Depth Limited Drilling

Published on: January 5, 2015

64.2K

Appropriately Matched Fixed-Angle Locking Plates Improve Stability in Volar Distal Radius Fixation.

Natalia D McIver1, Christina Salas1, Nathan Menon1

  • 1Department of Orthopaedics & Rehabilitation, the University of New Mexico Health Sciences Center, Albuquerque, NM.

Journal of Hand Surgery Global Online
|May 23, 2022
PubMed
Summary

Optimally sized volar locking plates enhance distal radius fracture fixation stability. Matching plate width to the radius improves construct strength and fragment capture, especially in comminuted fractures.

Keywords:
Distal radius fractureDistal radius morphologyFixed-angle volar locking plateVolar fixationVolar locking plate

More Related Videos

Adjustable Stiffness, External Fixator for the Rat Femur Osteotomy and Segmental Bone Defect Models
10:09

Adjustable Stiffness, External Fixator for the Rat Femur Osteotomy and Segmental Bone Defect Models

Published on: October 9, 2014

22.8K
Treatment with Locking Intramedullary Nailing for Intertrochanteric Fracture of the Femur Utilizing a New Awl with a Distal Positioner
04:41

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

Published on: June 6, 2025

247

Related Experiment Videos

Last Updated: Sep 22, 2025

Surgical Fixation of Sternal Fractures: Preoperative Planning and a Safe Surgical Technique Using Locked Titanium Plates and Depth Limited Drilling
15:11

Surgical Fixation of Sternal Fractures: Preoperative Planning and a Safe Surgical Technique Using Locked Titanium Plates and Depth Limited Drilling

Published on: January 5, 2015

64.2K
Adjustable Stiffness, External Fixator for the Rat Femur Osteotomy and Segmental Bone Defect Models
10:09

Adjustable Stiffness, External Fixator for the Rat Femur Osteotomy and Segmental Bone Defect Models

Published on: October 9, 2014

22.8K
Treatment with Locking Intramedullary Nailing for Intertrochanteric Fracture of the Femur Utilizing a New Awl with a Distal Positioner
04:41

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

Published on: June 6, 2025

247

Area of Science:

  • Orthopedic surgery
  • Biomechanical engineering
  • Trauma research

Background:

  • Distal radius fractures are common orthopedic injuries.
  • Volar locking plates are widely used for fixation.
  • Plate sizing is a critical factor in fixation construct stability.

Purpose of the Study:

  • To compare the biomechanical stability of appropriately sized volar locking plates versus excessively narrow plates for distal radius fracture fixation.
  • To evaluate the impact of plate width on fixation strength and fragment capture in a simulated comminuted distal radius fracture model.

Main Methods:

  • Eighteen matched pairs of cadaveric distal radii with simulated Arbeitsgemeinschaft für Osteosynthesefragen (AO) type C-3 fractures were used.
  • Specimens were randomly assigned to receive either an appropriately sized plate or an undersized narrow plate.
  • Fixation stability was assessed through cyclic loading and load-to-failure testing.

Main Results:

  • Fixation loss under cyclic loading was significantly greater with narrow plates.
  • Appropriately sized plates demonstrated higher stiffness, greater force at failure, and increased compressive strength.
  • The primary failure mode for narrow plates was displacement of the lunate facet fragment.

Conclusions:

  • Optimally matching volar locking plate width to the radius enhances fixation stability and fragment capture.
  • This precise sizing may reduce stress concentration, leading to improved biomechanical performance.
  • Appropriate plate width is particularly crucial for comminuted distal radius fractures.