Nishii T, Nakanishi K, Sugano N, Masuhara K, Ohzono K, Ochi T
Department of Orthopaedic Surgery, Osaka University Medical School, Suita, Japan.
Magn Reson Imaging. 1998 Oct;16(8):871-5. doi: 10.1016/s0730-725x(98)00009-5.
We conducted MR evaluations of acetabular and femoral cartilages in 27 hips of patients with osteoarthritis and 10 hips of normal volunteers by a fat-suppressed three-dimensional (3D) pulse sequence using a continuous leg traction method, and correlated the results with radiographic assessment. Normal condition of the acetabular and femoral cartilages was clearly demonstrated in the normal volunteers. Grading of abnormalities was possible for each cartilage in the patients with osteoarthritis. In early osteoarthritis graded by radiography, a high prevalence of abnormalities was detected in the acetabular cartilage as compared with the femoral cartilage. Despite the structural difficulty in evaluation of the hip joint cartilage, our MR imaging technique can provide information concerning a wide spectrum of cartilage abnormalities even in the identical radiographic stage, which will lead to improvement in the evaluation of disease progression and in surgical planning.
我们采用连续腿部牵引法，通过脂肪抑制三维（3D）脉冲序列对27例骨关节炎患者的髋关节和10例正常志愿者的髋关节进行了髋臼和股骨软骨的磁共振（MR）评估，并将结果与放射学评估进行了关联。正常志愿者的髋臼和股骨软骨状况清晰可见。骨关节炎患者的每个软骨都可以进行异常分级。在放射学分级为早期骨关节炎的患者中，与股骨软骨相比，髋臼软骨中检测到的异常发生率较高。尽管髋关节软骨评估存在结构上的困难，但我们的MR成像技术即使在相同的放射学阶段，也能提供有关广泛软骨异常的信息，这将有助于改善疾病进展评估和手术规划。
