摘要对经手术或穿刺证实的48例膝关节积脂血症患者的X线平片、CT、MRI、超声4种影像学资料进行对照研究.X线平片显示骨折线39例、髌上囊脂-液平面40例;在9例隐匿性骨折中5例显示脂-液平面.CT显示骨折线48例、关节积脂血症48例,三维重建图像能更直观地显示骨折线.MRI显示骨折线45例、积脂血症48例,并同时显示关节内结构损伤.超声显示骨折线15例、积脂血症48例.在9例隐匿性骨折中均显示积脂血症.结果提示4种影像方法诊断膝关节积脂血症各有优缺点,应根据临床需要适当选择.

abstractsForty eight patients with knee joint lipohemarthrosis underwent X-ray, CT, MRI and ultrasonography examinations, the diagnosis was confirmed by knee operation or puncture.The findings of 4 imaging methods were compared.Plain radiographs displayed fracture lines in 39 cases and fat-liquid layer of suprapatellar bursa in 40 cases, it displayed suprapatellar fat-liquid layer in 5 out of 9 occult fracture cases.CT displayed fracture lines in 48 cases and joint lipohemarthrosis in 48 cases; 3D imaging showed fracture lines better.MRI displayed fracture lines in 45 cases and joints lipohemarthrosis in 48 cases, and also showed the intracapsular structure injury.Ultrasonography revealed fracture lines in 15 cases and joint lipohemarthrosis in 48 cases, lipohemarthrosis was displayed in 7 out of 9 occult fracture cases.All 4 diagnostic imaging methods have advantages and disadvantages for diagnosis of lipohemarthrosis, and should be chosen on the basis of clinical needs.