Wirth T, LeQuesne G W, Paterson D C
Department of Orthopaedic Surgery, Adelaide Children's Hospital, South Australia.
Pediatr Radiol. 1992;22(7):498-504. doi: 10.1007/BF02012992.
Ultrasonography was found to be a valuable investigation in the assessment and management of Legg-Calvé-Perthes disease (LCPD). It was used to assess 23 patients with LCPD in 25 affected hips and was compared with radiographs obtained at the same time. A chronological five-part staging of LCPD is proposed, expressing the degree of flattening and fragmentation as well as reconstitution of the femoral head as seen on ultrasound examination. Thickening of articular cartilage was documented, and associated findings of synovitis and lateral extrusion of the femoral head were evaluated. An intraarticular hip effusion was present in 74% of cases in stages I-II. Lateral extrusion increased from stage II onwards until the healing stage. The phase of reconstitution (stage IV) demonstrated both resorption of the necrotic bone and formation of new immature osteoid tissue. Lateral extrusion and the start of the healing phase can be shown earlier by ultrasonography than by radiography.
超声检查被发现是评估和处理Legg-Calvé-Perthes病（LCPD）的一项有价值的检查方法。它被用于评估23例LCPD患者的25个患髋，并与同时获得的X线片进行比较。提出了LCPD按时间顺序的五期分期法，以表达超声检查所见股骨头的扁平、碎裂程度以及修复情况。记录了关节软骨增厚情况，并评估了滑膜炎及股骨头外侧挤压的相关表现。I-II期病例中74%存在髋关节内积液。从II期开始直至愈合期，外侧挤压逐渐增加。修复期（IV期）显示坏死骨吸收以及新的未成熟类骨质组织形成。超声检查比X线片能更早显示外侧挤压及愈合期的开始。
