On the current examination, there is no occult fracture or osteonecrosis. No bulky synovitis is seen. There is however, marked attenuation of the iliofemoral ligament with some progressive hyperintensity in the interval since the prior study in 3/10 but overall residual discontinuity and poor tissue remodeling. There is considerable scarring of the synovium adjacent to the ligamnetum teres and this is progressive in the interval since the prior study. Effects of neck debridement are noted. There is high grade cartilage loss over the posteromedial parafoveal aspect of the femoral head extending focally down to the subchondral bone. Marked hyperintensity and high grade partial loss is seen anteriorly over the dome with progressive hyperintensity and partial wear since the prior study. No defined bone on bone contact is seen. There is intrasubstance degeneration of the superior labrum as well as degeneration of the anterior labral remnant but no defined split.
The hip abductors and short external rotators are notable for mild insertional gluteus minimus tendinosis. Insertional iliopsoas tendinosis is seen with a remodeled insertional partial tear. There is no atrophy of the iliacus muscle in the pelvis. There is no trochanteric or iliopsoas bursitis. No ischial bursitis is seen. Bilteral hamstring tendinosis is seen with a nonacute low grade partial tear affecting the semimembranosous origin on the right.
Subsequent quantitative MR imaging demonstrates prolongation of relaxation times, most strikingly affecting the parafoveal posteromedial aspect of the femoral head, some prolongation anterior medial dome with relative preservation over the superolateral dome.
Impression:
MRI of the right hip demonstrates features of instability with poor remodeling of the iliofemoral ligament and progressive scarring of the synovium, adjacent to the ligament teres in the interval since prior study 03/10. There is also progressive wear of cartilage with corresponding prolongation of relaxation times, as outlined above. Degeneration of the anterior labral remnant is noted without acute split.
No comments:
Post a Comment