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Updated: May 11, 2026
08:29
In vivo Measurement of Knee Extensor Muscle Function in Mice
Published on: March 4, 2021
The extensor mechanism of the knee
1Department of Radiology, Nuffield Orthopaedic Centre, Oxford University Hospitals, Oxford, UK. simon.ostlere@ouh.nhs.uk
Radiologic Clinics of North America
|April 30, 2013
Summary
Knee extensor mechanism disorders are common, often diagnosed without imaging. Imaging like X-rays, ultrasound, and MRI are reserved for specific cases such as fractures, tendon issues, or patellofemoral instability.
Area of Science:
- Orthopedics
- Radiology
- Sports Medicine
Background:
- Knee extensor mechanism disorders are prevalent.
- Most cases do not necessitate advanced imaging.
- Common conditions include anterior knee pain, fractures, and instability.
Purpose of the Study:
- To outline the appropriate use of imaging for knee extensor mechanism disorders.
- To differentiate the roles of radiography, ultrasound, and MRI.
Main Methods:
- Review of common knee extensor mechanism pathologies.
- Analysis of indications for imaging in acute and chronic knee conditions.
- Evaluation of imaging modalities: radiography, ultrasound, and MRI.
Main Results:
- Radiographs are primarily for suspected fractures.
- Ultrasound excels in diagnosing tendon and bursal pathology.
- MRI is crucial for patellofemoral dysplasia and instability, including dislocations.
Conclusions:
- Imaging selection depends on the suspected knee extensor mechanism disorder.
- Conservative management is the first line for many knee conditions.
- Targeted imaging improves diagnostic accuracy for specific pathologies.
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