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Stress Imaging of Bone.

Maxine Ella Kresse1, Nicholas C Nacey1

  • 1UVA Department of Radiology, 1215 Lee Street, Box 800170, Charlottesville, VA 22908, USA.

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Summary

This article defines stress injuries, including insufficiency and fatigue fractures, and discusses their risk factors and pathophysiology. Early detection through optimal imaging is emphasized for differentiating high-risk and low-risk locations.

Keywords:
Insufficiency fractureMetabolic bone diseaseSports injuryStress fracture

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Area of Science:

  • Orthopedics
  • Radiology
  • Sports Medicine

Background:

  • Stress injuries, encompassing insufficiency and fatigue fractures, are common in active individuals.
  • Understanding their pathophysiology and risk factors is crucial for prevention and management.

Purpose of the Study:

  • To define stress injuries and review their pathophysiology and risk factors.
  • To highlight common locations, imaging examples, and optimal modalities for early detection.
  • To discuss the prognostic value of imaging grading and symptom correlation.

Main Methods:

  • Review of literature on stress injury definition, pathophysiology, and risk factors.
  • Analysis of common stress injury locations with illustrative imaging examples.
  • Discussion of optimal imaging techniques and interpretation pitfalls.
  • Emphasis on correlating imaging findings with clinical presentation.

Main Results:

  • Stress injuries are categorized into insufficiency and fatigue fractures with distinct mechanisms.
  • Common sites and characteristic imaging findings across various modalities are presented.
  • Differentiation between high-risk and low-risk fracture locations is critical for management.
  • Imaging plays a vital role in early diagnosis and prognosis assessment.

Conclusions:

  • Accurate diagnosis of stress injuries relies on understanding pathophysiology, risk factors, and characteristic imaging findings.
  • Early and precise imaging interpretation is essential for timely intervention and optimal patient outcomes.
  • Correlation of imaging with clinical symptoms and grading provides prognostic information.