Kallio P E
Aurora Hospital, Helsinki, Finland.
Clin Orthop Relat Res. 1988 Mar(228):49-56.
In a prospective clinical study of 109 children with transient synovitis of the hip, 32.1% had asymptomatic overgrowth of the femoral head of 2 mm or more (coxa magna) after a follow-up period of one year. Synovial effusion was confirmed with the use of ultrasonography, joint aspiration, or measurement of intraarticular pressure in 93 children and suggested clinically and radiographically only in 16. The most important independent risk factor for later development of coxa magna was radiographic widening of medial joint space with 1 mm or more at admission, which was seen in 42.1% and the presence of which gave a sensitivity of 0.74 and a specificity of 0.73 for coxa magna. At the one-year follow-up examination, the joint space was still wide in 10.1% of the children. The high frequency of coxa magna in these patients and its possible role in the development of degenerative arthritis indicate that transient synovitis of the hip should not be considered a harmless disease until further epidemiologic studies are available.
在一项针对109例髋关节一过性滑膜炎患儿的前瞻性临床研究中，经过一年的随访期，32.1%的患儿出现股骨头无症状性过度生长2毫米或更多（大髋关节）。93例患儿通过超声检查、关节穿刺或关节内压力测量确诊为滑膜积液，仅16例通过临床和影像学检查提示有滑膜积液。大髋关节后期发展的最重要独立危险因素是入院时关节内侧间隙影像学增宽1毫米或更多，42.1%的患儿出现这种情况，其出现对大髋关节的敏感性为0.74，特异性为0.73。在一年的随访检查中，10.1%的患儿关节间隙仍然增宽。这些患者中大髋关节的高发生率及其在退行性关节炎发展中的可能作用表明，在有进一步的流行病学研究之前，髋关节一过性滑膜炎不应被视为一种无害疾病。
