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Related Concept Videos

Radius of Gyration of an Area01:12

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The second moment of area, also known as the moment of inertia of area, is a crucial factor in understanding an object's resistance against bending deformation, or stiffness. To accurately estimate the second moment of area along any axis, one needs to concentrate all areas associated with that object into a thin strip, which should be placed parallel to that particular axis.
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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.
The radius has a nail-shaped head, and a...
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No object with a finite mass can travel faster than the speed of light in a vacuum. This fact has an interesting consequence in the domain of extremely high gravitational fields.
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The degree of curvature and the radius of curvature are fundamental concepts in determining the sharpness or smoothness of a curve. The degree of curvature is a measure of how steeply a curve bends and can be determined using the chord basis or the arc basis. In the chord basis method, the degree of curvature is defined as the central angle subtended by a chord of 30.48 meters, helping in the calculation of the radius of the curve. The arc basis method defines the degree of...
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Fractures: Bone Repair01:27

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Treatment for a fracture is based on the type of break, the bone affected, and the patient's age.
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Related Experiment Video

Updated: Feb 8, 2026

Treatment with Locking Intramedullary Nailing for Intertrochanteric Fracture of the Femur Utilizing a New Awl with a Distal Positioner
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Why do we use arthroscopy for distal radius fractures?

Ludovic Ardouin1, Alexandre Durand2, André Gay3

  • 1Institut de la Main Nantes Atlantique ELSAN Santé Atlantique, Saint-Herblain, France. ludovicardouin@me.com.

European Journal of Orthopaedic Surgery & Traumatology : Orthopedie Traumatologie
|June 21, 2018
PubMed
Summary

Arthroscopy-assisted internal fixation improves outcomes for complex distal radius fractures by enabling precise visualization and treatment of associated injuries. This technique is recommended for active patients with displaced fractures and potential ligament damage.

Keywords:
ArthroscopyRadius fractureWrist

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Area of Science:

  • Orthopedic Surgery
  • Traumatology
  • Arthroscopy

Background:

  • Distal radius fractures require tailored management for patients with high functional demands.
  • Restoring normal anatomy is crucial for preserving function after fracture.
  • Pre-operative imaging, including CT scans, aids in understanding fracture complexity.

Purpose of the Study:

  • To evaluate the role of arthroscopy in managing complex distal radius fractures.
  • To assess arthroscopy's utility in diagnosing and treating associated injuries, particularly scapholunate ligament injuries.
  • To determine the effectiveness of arthroscopic-assisted internal fixation for specific fracture patterns.

Main Methods:

  • Pre-operative assessment with X-rays and thin-slice CT scans with 3D reconstructions.
  • Intraoperative arthroscopic visualization for fragment assessment, reduction, and injury evaluation.
  • Arthroscopic-assisted internal fixation for articular fractures.

Main Results:

  • Arthroscopy allows for accurate diagnosis and grading of scapholunate injuries.
  • It enables dynamic assessment of osteosynthesis stability.
  • Arthroscopic techniques help identify fragmentation patterns and instability, guiding treatment choices.

Conclusions:

  • Arthroscopic-assisted internal fixation is recommended for active patients with articular distal radius fractures, especially those with displacement (>2mm), potential scapholunate ligament injuries, or ulnar styloid fractures.
  • This approach helps prevent malunion and degenerative arthritis.
  • Adequate training and experience are essential for successful outcomes and complication avoidance.