Bos C F, Bloem J L
Department of Orthopaedic Surgery, University Hospital, Leiden, The Netherlands.
J Bone Joint Surg Am. 1989 Dec;71(10):1523-9.
In seven children in whom congenital dislocation of the hip was diagnosed after they began to walk, magnetic resonance imaging provided important information for treatment. In five children, it revealed adhesion of the capsule to the ilium, an inverted limbus, and a displaced transverse ligament; these findings indicated a need for open reduction. In the other two children, magnetic resonance imaging demonstrated that the capsule was redundant and appeared to have been stripped from the posterosuperior part of the acetabular rim; this allowed closed reduction. Repeat magnetic-resonance imaging in these two hips suggested that the capsule gradually shrank after several months. The findings in these two patients suggested a long-standing Grade-I congenital dislocation of the hip, as described by Dunn and by Ogden. Children who have this type of congenital dislocation can be treated with closed reduction, provided there is prolonged immobilization of the hip.
在7名开始行走后被诊断为先天性髋关节脱位的儿童中，磁共振成像为治疗提供了重要信息。在5名儿童中，显示关节囊与髂骨粘连、髋臼缘反转以及横韧带移位；这些发现表明需要进行切开复位。在另外两名儿童中，磁共振成像显示关节囊冗余，似乎已从髋臼后上缘剥离；这使得可以进行闭合复位。对这两个髋关节进行的重复磁共振成像显示，几个月后关节囊逐渐收缩。这两名患者的检查结果提示为邓恩（Dunn）和奥格登（Ogden）所描述的长期I级先天性髋关节脱位。患有这种类型先天性脱位的儿童，如果髋关节长期固定，可以采用闭合复位治疗。
