膝关节鹅足滑囊炎MRI表现

MRI manifestations of knee joint pes anserinus bursitis

目的探讨膝关节鹅足滑囊炎的磁共振成像(MRI)表现。方法回顾性分析2021年1—12月在成都中医药大学附属医院诊断为膝关节鹅足滑囊炎90例患者的MRI图像及其临床相关资料,MRI扫描序列主要包括矢状位T1WI、质子密度加权成像(FS PDWI),冠状位和横断位FS PDWI。结果94%患者伴膝关节其他病变,其中伴随膝关节骨质增生67例,膝关节局部软骨损伤80例,关节面下小囊变70例,半月板前后角损伤变性20例,内侧副韧带损伤14例,前后交叉韧带部分损伤23例,关节腔积液79例,滑膜增厚54例,膝关节周围软组织肿胀8例。所有患者MRI表现为位于膝关节后内侧、内侧副韧带之间的鹅足滑囊区T1WI低信号,FS PDWI压脂呈高信号影像。结论膝关节鹅足滑囊炎因常合并膝关节其他病变,其临床表现及体征缺乏特异性,而MRI表现具有一定特征性,可便于临床明确诊断、评估病变范围及周边肌腱、神经改变,使患者得到更有效、针对性的干预,提高治疗效果。

Objective To investigate the magnetic resonance imaging(MRI)manifestations of knee joint pes anserinus bursitis.Methods The MRI manifestations and clinical history of 90 patients diagnosed with knee joint pes anserinus bursitis in the Affiliated Hospital of Chengdu University of Traditional Chinese Medicine from January to December 2021 were analyzed retrospectively.The MRI scan sequence mainly included sagittal T1WI,proton density weighted imagine(FS PDWI),coronal and axial FS PDWI.Results There were 94%of the patients had other knee joint lesions,among them,67 cases with bone hyperplasia,80 cases with local cartilage injury with the knee joint,70 cases with subarticular capsule degeneration,20 cases with injury and degeneration with the anterior and posterior horn with the meniscus,14 cases with medial collateral ligament injury,23 cases with partial anterior and posterior cruciate ligament injury,79 cases with fluid,54 cases with synovial thickening,and 8 cases with soft tissue swelling around the knee joint.MRI of all patients showed low signal on T1WI and high signal on FS PDWI grease in the bursa area of the pes anserinus between the posteromedial and medial collateral ligaments of the knee joint.Conclusion Due to the frequent combination of other knee joint lesions,the clinical manifestations and signs of knee joint pes anserinus bursitis lack specificity,but the MRI manifestations have certain characteristics,which can clearly diagnose and evaluate the lesion scope and peripheral tendon and nerve changes,so that patients can get more effective and targeted clinical intervention and improving treatment effectiveness.