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Related Concept Videos

Knee Joint01:23

Knee Joint

The knee joint is the most complicated joint in the body. It consists of three articulations– two tibiofemoral and one patellofemoral. As is characteristic of synovial joints, the knee joint has a thin articular capsule that partially surrounds this joint cavity. Additionally, several ligaments, muscles, and cartilaginous structures support the movement of the knee.
A total of seven ligaments support the knee joint. The patellar ligament, which is also attached to the quadriceps femoris group...

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Related Experiment Video

Updated: Jul 10, 2026

Using a Knee Arthrometer to Evaluate Tissue-specific Contributions to Knee Flexion Contracture in the Rat
04:59

Using a Knee Arthrometer to Evaluate Tissue-specific Contributions to Knee Flexion Contracture in the Rat

Published on: November 9, 2018

Optimization of the fixed-flexion knee radiograph.

H C Charles, V B Kraus, M Ainslie

    Osteoarthritis and Cartilage
    |November 6, 2007
    PubMed
    Summary

    A new, user-friendly X-ray method ensures optimal knee joint space width measurements with reduced radiation exposure. Radiology technologists can easily implement this technique for accurate knee radiographs.

    Area of Science:

    • Radiology
    • Medical Imaging
    • Orthopedics

    Background:

    • Accurate measurement of knee joint space width (JSW) is crucial for diagnosing and monitoring osteoarthritis.
    • Traditional methods may involve higher radiation doses or complex positioning techniques.
    • Standardizing radiographic acquisition for JSW is essential for reliable clinical assessment.

    Discussion:

    • This study presents a novel, user-friendly method for obtaining optimal knee radiographs for JSW measurement.
    • The technique utilizes a commercially available positioning frame (Synaflexer) and standard X-ray equipment.
    • It aims to minimize radiation exposure while ensuring accurate visualization of the tibial plateau.

    Key Insights:

    • Optimized knee radiographs for JSW measurement can be achieved with four or fewer exposures.

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    In Vitro Application of a Wireless Sensor in Flexion-Extension Gap Balance of Unicompartmental Knee Arthroplasty
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    In Vitro Application of a Wireless Sensor in Flexion-Extension Gap Balance of Unicompartmental Knee Arthroplasty

    Published on: May 5, 2023

    Related Experiment Videos

    Last Updated: Jul 10, 2026

    Using a Knee Arthrometer to Evaluate Tissue-specific Contributions to Knee Flexion Contracture in the Rat
    04:59

    Using a Knee Arthrometer to Evaluate Tissue-specific Contributions to Knee Flexion Contracture in the Rat

    Published on: November 9, 2018

    Four-Dimensional CT Analysis Using Sequential 3D-3D Registration
    05:05

    Four-Dimensional CT Analysis Using Sequential 3D-3D Registration

    Published on: November 23, 2019

    In Vitro Application of a Wireless Sensor in Flexion-Extension Gap Balance of Unicompartmental Knee Arthroplasty
    07:33

    In Vitro Application of a Wireless Sensor in Flexion-Extension Gap Balance of Unicompartmental Knee Arthroplasty

    Published on: May 5, 2023

  • The method eliminates the need for fluoroscopy or specialized foot positioning aids.
  • Radiology technologists can readily understand and implement this technique in clinical practice.

    • Outlook:

    • This approach has the potential to improve the quality and consistency of knee JSW imaging.
    • Wider adoption could lead to more accurate osteoarthritis assessments and treatment monitoring.
    • Further studies could explore its efficacy in diverse patient populations and imaging settings.