正常及异常髂胫束的超声检查及其临床价值

Normal and abnormal iliotibial band： sonographic assessment

目的对正常髂胫束厚度进行超声测量，评估超声对髂胫束损伤的诊断价值。方法对20例正常志愿者40条髂胫束的厚度进行超声测量，并与临床证实的11例髂胫束摩擦综合征患者的超声表现进行对照。结果正常组髂胫束厚度测值在股骨外侧髁水平为（1．55±0．40）mm，在胫骨结节（Gerdy’s结节）止点处为（2．05±0．30）mm，左右两侧差异无统计学意义。髂胫束摩擦综合征组双侧对比发现患侧明显肿胀增厚（差距〉30％），回声减低，其中6例表现为止点处肿胀．3例为股骨外侧髁水平肿胀，2例为弥漫性肿胀；4例合并滑囊积液。结论超声可准确判断髂胫束肿胀的程度、部位，为临床治疗提供重要的参考信息。

Objective To measure the thickness of the iliotibial band（ITB） in normal adult volunteers and to evaluate the value of ultrasonography in the diagnosis of ITB injury. Methods Ultrasonography was used to measure the thickness of the ITB in 20 normal adult volunteers, which were compared with the sonographic findings in 11 patients with iliotibial band friction syndrome（ITBFS）. Results The thickness of the ITB in normal volunteers was （1.55 ± 0.40）ram at the level of the femoral condyle and （2.05 ± 0.30）mm at the insertions of tibial tubercle （Gerdy＇s tubercle）. There were no significant differences between the right and left sides. In each of 11 patients with ITBFS, there was a more ITB thickness in symptomatic side than that of asymptomatic side（more than 30% in the difference between two sides）. The ITB had a area of decreased echoginicity in symptomatic side. The thickened position of ITB were at insertion resion in 6 cases, at the level of femoral condyle in 3 cases and diffuse in 2 cases. Bursa fluid were found in 4 cases. Conclusions Ultrasonography can effectively evaluate the degree and range of ITB iniury,and can give important information for clinical theraphy.