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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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Related Experiment Video

Updated: Jan 26, 2026

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

Published on: June 6, 2025

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Bone Microarchitecture and Distal Radius Fracture Pattern Complexity.

Anne M Daniels1,2, Luuk M A Theelen3, Caroline E Wyers2,4,5

  • 1Department of Surgery, VieCuri Medical Centre, Venlo, The Netherlands.

Journal of Orthopaedic Research : Official Publication of the Orthopaedic Research Society
|April 13, 2019
PubMed
Summary

Age and male gender are linked to more complex distal radius fractures (DRFs). Bone mineral density and microarchitecture did not significantly influence fracture pattern complexity in this study.

Keywords:
bone microstructuredistal radius fracture (DRF)fracture pattern complexityhigh-resolution peripheral quantitative CT (HR-pQCT)micro-finite element analyses (micro-FEA)

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Area of Science:

  • Orthopedics
  • Gerontology
  • Radiology

Background:

  • Distal radius fractures (DRFs) exhibit diverse complexity patterns.
  • Patient characteristics like age, gender, and bone mineral density (BMD) may influence fracture patterns.
  • Understanding these associations is crucial for fracture management and prevention.

Purpose of the Study:

  • To investigate the relationship between patient characteristics, BMD, bone microarchitecture, and bone strength with the complexity of DRF patterns.
  • To compare patients with extra-articular (AO/OTA type A) versus complete articular (AO/OTA type C) DRFs.

Main Methods:

  • A cohort of 251 patients (aged 50-90 years) with confirmed DRFs was analyzed.
  • Fracture pattern complexity was assessed using the AO/OTA classification.
  • BMD and prevalent vertebral fractures were measured using dual-energy X-ray absorptiometry; 71 patients underwent high-resolution peripheral quantitative computed tomography.

Main Results:

  • Multivariate analysis revealed that male gender (OR 8.48) and older age (OR 1.11) were significantly associated with more complex DRF patterns (type C vs. type A).
  • Bone mineral density, prevalent vertebral fractures, and bone microarchitecture/strength parameters did not show significant associations with fracture pattern complexity.
  • Higher mean age and proportion of males were observed in the complex fracture group (type C).

Conclusions:

  • Age and male gender are significant predictors of distal radius fracture pattern complexity.
  • Bone mineral density, bone microarchitecture, and bone strength do not appear to be major determinants of DRF pattern complexity in this population.
  • Further research may explore other contributing factors to DRF complexity.