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Related Concept Videos

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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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Unsymmetrical bending occurs when the bending moment applied to a structural member does not align with its principal axis. This misalignment leads to complex stress distributions and deflection patterns that differ from symmetrical bending, which are essential for designing structures to withstand different loading conditions.
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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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Eccentric axial loading occurs when an axial load is applied away from the centroidal axis of a structural member. This scenario is common in engineering, where structural elements may not be directly aligned due to various design or functional requirements.
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The ankle is formed by the talocrural joint (crural = leg). It consists of the articulations between the talus bone of the foot and the distal ends of the tibia and fibula of the leg. The superior aspect of the talus bone is square-shaped and has three areas of articulation. The top of the talus articulates with the inferior tibia. This is the portion of the ankle joint that carries the body weight between the leg and foot. The sides of the talus are firmly held in position by the articulations...
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Related Experiment Video

Updated: Jun 25, 2025

Minimally Invasive Treatment for Thoracolumbar Burst Fracture Using Sagittal Alignment Screws and A Trauma Reduction Device
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Minimally Invasive Treatment for Thoracolumbar Burst Fracture Using Sagittal Alignment Screws and A Trauma Reduction Device

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The Volar Cortical Hinge: An Independent Risk Factor for Distal Radius Fracture Displacement.

Justin S Mathews1, Tanushk L B Martyn1, Kelsey S Rao1

  • 1Department of Orthopaedics, Tauranga Hospital, Bay of Plenty District Health Board, New Zealand.

Journal of Wrist Surgery
|May 29, 2024
PubMed
Summary
This summary is machine-generated.

Assessing the volar cortex reduction in distal radius fractures is key to preventing redisplacement. Anatomical reduction of the volar cortex significantly reduces the need for surgery or repeat manipulation.

Keywords:
displaceddistal radiusfractureremanipulationvolar cortexvolar cortical hinge

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Area of Science:

  • Orthopedic Surgery
  • Radiology
  • Trauma Care

Background:

  • Displaced distal radius fractures risk redisplacement post-manipulation, potentially requiring delayed surgery.
  • Predictive criteria for redisplacement are crucial for optimal patient management.
  • Volar cortex reduction quality was hypothesized as an additional predictive factor.

Purpose of the Study:

  • To evaluate if volar cortex reduction quality predicts the need for further intervention (surgery or remanipulation).
  • To determine if reduction quality predicts the rate of malunion as a secondary outcome.

Main Methods:

  • Retrospective review of 105 adult distal radius fractures treated with closed reduction.
  • Classification of volar cortex reduction as anatomical, opposed, or displaced.
  • Assessment of radiological parameters and outcomes at multiple time points (pre-reduction to 6 weeks).

Main Results:

  • Volar cortex reduction quality significantly correlated with the need for surgery/remanipulation (p=0.008) and malunion (p=0.001).
  • Anatomical reduction showed the lowest rates of adverse outcomes (11.1% surgery/remanipulation, 16.7% malunion).
  • This association remained significant at the 1-week follow-up (p=0.001).

Conclusions:

  • Volar cortex reduction quality is the most significant factor predicting redisplacement in dorsally displaced distal radius fractures.
  • This parameter is a valuable clinical tool for identifying fractures likely to require intervention.
  • Early assessment of volar cortex reduction aids in predicting outcomes and guiding treatment decisions.