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Acetabular labral tears: contrast-enhanced MR imaging under continuous leg traction
T Nishii1, K Nakanishi, N Sugano
1Division of Functional Diagnosic Imaging, Biomedical Research Center, Osaka University Medical School, Japan.
Skeletal Radiology
|May 1, 1996
Summary
Continuous leg traction with contrast-enhanced MR imaging improves visualization of acetabular labral tears. This non-invasive technique aids in diagnosing labral disorders and planning treatment for hip joint conditions.
Area of Science:
- Orthopedics
- Radiology
- Medical Imaging
Background:
- Acetabular labral tears are a common cause of hip pain.
- Accurate diagnosis is crucial for effective treatment planning.
- Conventional MR imaging may have limitations in visualizing labral pathology.
Purpose of the Study:
- To assess the impact of continuous leg traction on contrast-enhanced MR imaging of the hip.
- To determine the utility of this technique in detecting acetabular labral tears.
Main Methods:
- Nineteen hips underwent MR imaging with and without continuous leg traction after gadolinium-DTPA injection.
- Evaluation focused on joint fluid enhancement and labral contour detection.
- Results were correlated with conventional arthrography, arthroscopy, and surgical findings in 11 hips with confirmed tears.
Main Results:
- Contrast enhancement was achieved in all hips.
- Continuous leg traction significantly improved delineation of superior and inferior labral surfaces.
- Enhanced MR imaging under traction depicted 9 out of 11 labral tears and helped differentiate tears from labral undercutting.
Conclusions:
- Contrast-enhanced MR imaging with continuous leg traction is a valuable, non-invasive, radiation-free method for detecting acetabular labral tears.
- This technique can aid in clarifying the natural history of labral disorders and optimizing treatment strategies, particularly in patients with acetabular dysplasia.