股骨上端骨髓水肿综合征的MRI表现特点

MRI characteristic of proximal femur bone marrow edema syndrome

目的：分析股骨上端骨髓水肿综合征的MRI表现特点以提高对该病的认识。方法；回顾性分析10例股骨上端骨髓水肿综合征患者的MRI表现，男6例，女4例；年龄36～57岁，平均41．5岁；病史1周～3个月。临床表现为突然发作的髋部疼痛9例，行走能力及髋关节活动受限7例；全部病例无明显外伤史，女性患者未在孕期。随访3～12个月，症状消失3个月复查MRI后结束随访。结果：MRI主要表现为弥漫性骨髓水肿，累及股骨头、颈、粗隆间，10例13髋中骨髓水肿1级6髋，2级5髋，3级2髋。合并髋关节积液9髋，I级积液6髋，Ⅱ级1髋，III级2髋。治疗3-12个月后患者髋部疼痛症状消失，股骨内MRI信号恢复正常。

To study the MRI features of proximal femur bone marrow edema syndrome ~br timber improve the understanding of the disease. Methods：MRI imaging of 10 patients with proximal femur bone marrow edema syndrome was retrospectively reviewed,including 6 males and 4 females with an average age of 41.5 years old ranging from 36 to 57. The courses of diseases ranged from 1 week to 3 months. Among them ,9 cases had clinical manifestations of sudden hip pain,7 cases had limited ability of walking and hip movement; all patients had no obvious injury history, non of the female patients was pregnant. All patients were followed up from 3 to 12 months, the following-up were topped after MRI when the symptoms disap- peared for 3 months. Results： The MRI demonstrated diffuse bone marrow edema involving the femoral head, neck and the in- ter-trochanteric region, 13 hips of 10 patients with bone marrow edema included 6 cases in grade 1,5 cases in grade 2,2 cases in grade 3 ; 9 hips with hip hydrarthrosis included 6 hips in grade I , 1 hip in grade Ⅱ , 2 hips in grade Ⅲ. After treatment for 3 to 12 months the hip symptoms of the patients disappeared and MRI images were normal. Conclusion：MRI is useful in defin- ing the location and extent of proximal femur bone marrow edema syndrome.