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MR arthrography for evaluation of the acetabular labrum
1Musculoskeletal and Emergency Radiology, Hillcrest Hospital, Mayfield Heights, Ohio, USA.
Skeletal Radiology
|August 2, 2001
Summary
Magnetic resonance (MR) arthrography of the hip improves diagnosis of hip pain by revealing acetabular labrum tears. This technique differentiates tears from normal labral variations, offering new insights into internal derangement.
Area of Science:
- Orthopedic imaging
- Radiology
- Musculoskeletal system
Background:
- Evaluation of hip pain, particularly acetabular labrum lesions, has been historically limited.
- Mechanical hip pain often stems from internal derangements not clearly visualized with conventional methods.
Purpose of the Study:
- To review the technique and diagnostic utility of MR arthrography for hip internal derangement.
- To elucidate the appearance of normal and abnormal acetabular labrum using MR arthrography.
Main Methods:
- Review of MR arthrography technique for hip joint distention.
- Analysis of imaging findings in asymptomatic and symptomatic labral variations.
- Correlation of imaging findings with clinical presentation of hip pain.
Main Results:
- MR arthrography enhances visualization of intra-articular structures, especially the acetabular labrum.
- Joint distention allows for identification and differentiation of labral detachments and intrasubstance tears.
- Variations in morphology and signal of the asymptomatic labrum are characterized, aiding in the diagnosis of pathology.
Conclusions:
- MR arthrography is a valuable tool for diagnosing acetabular labral tears and other internal derangements of the hip.
- Improved visualization facilitates accurate differentiation between pathological and normal labral appearances.
- This technique offers new insights into the causes of mechanical hip pain.