Frizziero L, Tarozzi C, Zizzi F, Ferruzzi A, Leghissa R
Z Rheumatol. 1986 May-Jun;45(3):129-30.
One case of spontaneous osteonecrosis (S.O.N.) of the femoral condyles is described. Lesions were seen in both lateral femoral condyles; this implies a local, microtraumatic or circulatory factor. It is interesting that the patient was so young (a 14 year old girl). She presented with persistent pain in the right knee and at examination only a mild tenderness was noted. Radiography showed a radiolucent "halo" in the lateral condyles with a surrounding sclerotic reaction. Femoral condyles at arthroscopic examination appeared with a slight flattening over the articular cartilage. The diagnosis of S.O.N. was made by a bone scan that demonstrated an increased uptake of the tracer in the lateral femoral condyle bilaterally. A conservative therapy was successful after 18 months.
本文描述了一例股骨髁自发性骨坏死（S.O.N.）病例。双侧股骨外侧髁均出现病变；这表明存在局部、微创伤或循环因素。有趣的是，患者非常年轻（一名14岁女孩）。她表现为右膝持续性疼痛，检查时仅发现轻度压痛。X线片显示外侧髁有透光的“晕圈”，周围有硬化反应。关节镜检查时，股骨髁的关节软骨出现轻微扁平。通过骨扫描诊断为S.O.N.，该扫描显示双侧股骨外侧髁示踪剂摄取增加。保守治疗18个月后取得成功。
