【摘要】 目的：分析网球腿的MRI表现特点。方法：回顾性分析44例临床诊断为网球腿患者的MRI表现特点。结果：44例MRI均表现为腓肠肌内侧头肌肉肌腱连接处损伤，其中16例（36.4%）合并腓肠肌外侧头损伤，5例（11.4%）合并比目鱼肌损伤，3例（6.8%）合并跖肌损伤。44例患者中，Ⅰ级损伤11例（25.0%），Ⅱ级损伤27例（61.4%），Ⅲ级损伤6例（13.6%）。肌束间积液44例（100.0%），冠状位T₂WI表现为肌间隙内羽毛状高信号区；肌间积液38例（86.4%），浅筋膜下积液19例（43.2%）。结论：腓肠肌内侧头的肌肉肌腱连接处损伤是网球腿的MRI特征性表现。更多还原

【Abstract】 Objective:To analyze the MRI features of tennis legs.Methods:The imaging characteristics of 44 patients with clinically proved tennis legs were analyzed retrospectively.Results:All 44 patients had injury in the medial head of the gastrocnemius muscle at the myotendinous junction,including 16 cases （36.4%） accompanied with the lateral head of gastrocnemius muscle injury,5 cases （11.4%） with the soleus muscle （SM） injury,and 3 cases （6.8%） with the metatarsal muscle injury.MRI showed partial or complete rupture of the myotendinous junction.44 patients with injury,11 cases （25.0%） was grade I injury,27 cases （61.4%） was grade Ⅱ and 6 cases （13.6%） was grade Ⅲ.44 cases （100.0%） had interfascicular effusion,showed feather-shaped high signal in intermuscular space on coronal T₂WI.38 cases （86.4%） had intramuscular effusion and 19 cases （43.2%） had superficial fascia effusion.Conclusions:The injuries of the medial head of the gastrocnemius muscle at the myotendinous junction is the characteristic MRI manifestation of tennis leg.更多还原