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Related Concept Videos

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German physicist Wilhelm Röntgen (1845–1923) was experimenting with electrical current when he discovered that a mysterious and invisible "ray" would pass through his flesh but leave an outline of his bones on a screen coated with a metal compound. In 1895, Röntgen made the first durable record of the internal parts of a living human: an "X-ray" image (as it came to be called) of his wife’s hand. Scientists worldwide quickly began their own experiments with...
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Updated: May 3, 2026

Author Spotlight: Developing a Rat Model for Weight-Bearing Intervention to Investigate Osteonecrosis of the Femoral Head
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How do radiologists evaluate osteonecrosis?

G-C Lee1, V Khoury, D Steinberg

  • 1Department of Orthopaedic Surgery, Pereleman School of Medicine, The University of Pennsylvania, Philadelphia, PA, USA.

Skeletal Radiology
|February 5, 2014
PubMed
Summary
This summary is machine-generated.

Musculoskeletal radiologists recognize the need to assess osteonecrosis extent but often lack adequate classification systems. Improved staging methods are crucial for better hip osteonecrosis patient treatment and management.

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Area of Science:

  • Orthopedics
  • Radiology
  • Medical Imaging

Background:

  • Osteonecrosis of the hip (ONFH) management is challenging due to varying disease stages.
  • Accurate evaluation and staging are critical for determining prognosis and treatment.
  • Current methods for assessing ONFH may not be sufficiently reliable or efficient.

Purpose of the Study:

  • To investigate how musculoskeletal (MSK) radiologists evaluate osteonecrosis of the femoral head (ONFH).
  • To determine the adequacy of current radiologist evaluations for ONFH.
  • To identify potential improvements in ONFH assessment and classification.

Main Methods:

  • A 12-part questionnaire was distributed to 888 members of the Society of Skeletal Radiology.
  • The survey aimed to understand the diagnostic approaches and classification systems used by MSK radiologists for ONFH.
  • Responses were analyzed to assess current practices in evaluating the extent and joint involvement of ONFH.

Main Results:

  • 121 radiologists responded, utilizing plain radiographs and MRI for evaluation.
  • While 95% agreed on the importance of assessing necrosis extent, only 46% used a specific classification system (often Ficat and Arlet, which lacks extent detail).
  • 88% provided visual estimates of necrosis extent, but detailed classification and consultation on imaging studies were infrequent.

Conclusions:

  • Radiologists acknowledge the clinical significance of assessing ONFH extent but current methods are often unsatisfactory.
  • Implementing effective classification systems that include both stage and extent is vital for improved patient treatment.
  • Enhanced radiologist consultation regarding imaging study selection and interpretation is recommended for better ONFH management.