【双语病例】髋臼撞击综合征(FAI)–影像PPT.pdfVIP

【双语病例】髋臼撞击综合征 (FAI) –影像 PPT 1.髋臼盂唇撕裂 . True False 2. 髋关节骨折 . True False 3.The hip is dislocated （髋关节脱位） . True False 4. 股骨颈轮廓异常 . True False Angle Measurement Measurements were performed on the axial oblique images. 5.What is being measured here? Acetabular angle Alpha angle Beta angle Center-edge angle Wiberg angle 6.The measured angle is 58 °. What is the unifying diagnosis? Ankylosing spondylitis 强直性脊柱炎 Developmental dysplasia of the hip 发育性髋关节发育不良 Femoral acetabular impingement (FAI) – cam type 股骨髋臼撞击综合征（ FAI ）- 凸轮型 FAI – pincer type 股骨髋臼撞击综合征（ FAI ）-钳夹型 Primary osteoarthritis of the hip 髋关节原发性骨关节病 答案： True The superior labral tear is seen best on coronal images False No fracture line is seen on these images False The hip is normally aligned. True An osseous “bump” is noted best on the axial oblique images. Alpha angle The alpha angle is being measured. The other angles listed are also important in assessing for hip anomalies Femoral acetabular impingement (FAI) – cam type While there is osteoarthritis present, the best unifying diagnosis, given the osseous bump in the femoral neck and the alpha angle greater than 50 °, would be cam-type FAI. Findings Axial oblique T1 and coronal proton density-weighted fat-saturated images of the right hip show a tear of the superior, anterior labrum. The axial oblique image shows the contour abnormality of the femoral neck, with an osseous bump creating an abnormal convexity at the head/neck junction. There is also cartilage loss and subchondral cystic changes beginning over the lateral acetabulum. 右髋关节斜横断位 T1WI 及冠状位脂肪抑制质子加权像示髋 臼前上方盂唇撕裂。斜横断位示股骨颈轮廓异常，骨性撞击 致股骨头颈交界处异常突起。髋臼侧可见软骨磨损、软骨下 囊性变。 The alpha angle, measured as shown