Dynamic MSK ultrasound imaging in snapping hip syndrome
Snapping hip syndrome is a common condition in teenagers and young adults participating in sports that require extreme hip motions, such as running and soccer. Snapping hip syndrome can be classified as intra-articular (caused by labral tears, foreign bodies, synovial foldings, fracture fragments) and extra-articular. The latter can further be classified as external (caused by frcition or subluxation of the ITB or anterior portion of the Gluteus maximus over the greater trochanter) or internal snapping (induced by iliopsoas tendon impingement on the iliopectineal eminence, superior pubic ramus or anterior inferior iliac spine).
The authors of this study used dynamic musculoskeletal (MSK) ultrasound to reveal the exact cause of Snapping Hip Syndrome in a 34-yr-old former soccer player.
The authors concluded that most causes of the “snapping phenomenon”, such as loose bodies, synovial chondromatosis, small femoral angle or developmental dysplasia can be excluded by other imaging modalities. However, ITB snapping hip syndrome could not be diagnosed using radiographic imaging, but was easily detected by using dynamic MSK ultrasound. Therefore dynamic MSK ultrasound seems to be a useful diagnostic tool for the Snapping Hip Syndrome.
> From: Chang et al., Am J Phys Med Rehabil (2015) (Epub ahead of print). All rights reserved to Wolters Kluwer Health, Inc. Click here for the Pubmed summary.