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AI-powered hip labral tear detection on MRI. Identify acetabular labral tears, paralabral cysts, and associated cartilage damage. 4 AI models analyze coronal and sagittal sequences for tear location and extent.
The acetabular labrum is a ring of fibrocartilage lining the rim of the hip socket that deepens the joint, stabilizes the femoral head, and seals synovial fluid within the articulation. A hip labral tear occurs when this structure is damaged, often in association with femoroacetabular impingement (FAI), hip dysplasia, or acute trauma. Labral tears are one of the most common causes of anterior groin pain in active young adults. MRI and MR arthrography are the primary imaging modalities for evaluating labral integrity, tear morphology, and associated chondral damage. Our AI consortium analyzes labral signal, morphology, and adjacent structures to identify tears and guide clinical decision-making.
MR arthrogram (MRA) involves intra-articular injection of dilute gadolinium contrast under fluoroscopic guidance, followed by MRI. The gadolinium distends the joint capsule and infiltrates labral tears, producing high signal against the normally dark fibrocartilaginous labrum on fat-suppressed T1-weighted sequences. MRA raises the sensitivity for labral tears from approximately 30–60% on conventional MRI to 87–95%, with comparable improvements in specificity. The technique also delineates paralabral cysts, cartilage undermining at the chondrolabral junction, and the location of the tear around the acetabular clock face, information that guides arthroscopic repair planning.
Radial reformats are oblique MRI sequences acquired in a series of planes oriented radially around the femoral neck, typically at 8 to 12 positions spanning the full circumference. Each reformat is perpendicular to the femoral neck axis at a given clock-face position, providing an orthogonal view of the head-neck junction and adjacent labrum at that location. This approach eliminates the partial-volume averaging that degrades standard axial and coronal images at the anterior and posterior margins of the hip. Radial reformats allow precise alpha angle measurement at the site of maximum cam deformity and improve detection of anterosuperior labral tears and associated cartilage delamination — pathology frequently missed on conventional MRA planes alone.
Small, stable labral tears without associated FAI morphology may become asymptomatic with conservative management — targeted physical therapy to improve hip rotator strength and neuromuscular control, activity modification, and intra-articular corticosteroid or platelet-rich plasma injections. However, the labrum has limited intrinsic healing capacity due to its largely avascular fibrocartilaginous composition, particularly in the inner two-thirds. Tears associated with cam or pincer impingement are subject to ongoing mechanical stress and rarely resolve without addressing the underlying bony morphology. Arthroscopic labral repair, combined with cam resection or acetabuloplasty when indicated, restores biomechanical function and achieves good-to-excellent outcomes in appropriately selected patients.
Find out if hip labral tears can resolve without surgery, the role of physiotherapy, and surgical options when conservative care fails.
Understand your hip MRI report including labrum evaluation, cam and pincer morphology, cartilage assessment, and AVN detection.
Post-operative hip labral repair rehabilitation guide including weight-bearing protocols, exercises, and return-to-activity milestones.
Upload your MRI or X-ray DICOM files for private, AI-powered analysis. 4 models analyze independently — all data stays in your browser.
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