Arthritides, Arthrography, MR, CT, Conventional radiography, Pelvis, Musculoskeletal system, Musculoskeletal joint
J. valakada1, D. N. Srivastava1, S. Sharma2, K. Vijay1, R. MALHOTRA3; 1Delhi/IN, 2NEW DELHI, DELHI/IN, 3DELHI, DELHI/IN
FAI syndrome is a relatively newly described entity in musculoskeletal hip imaging.
Many of the undiagnosed cases of chronic hip pain have been retrospectively diagnosed to be FAI and so the identification of the entity is important since there are specific management protocols for this entity.
The spectrum ranges from the common CAM type variety to the rare PINCER type with the mixed type and secondary types in between .Plain Xrays can suggest some changes in FAI but CT and MR are required for the complete evaluation.
The femoral head neck angle can be evaluated in CT and MR .
By indirect MR arthrogram technique,
the acetabular labrum can be better evaluated for tears .Indirect arthrogram has the advantages of lesser radiation exposure,
being nontraumatic and no chance of introducing infection when compared to direct arthrogram.
The degree of cartilage loss can also be evaluated .