Klein M A, Spreitzer A M
Department of Radiology, Medical College of Wisconsin, Milwaukee 53226.
Radiology. 1993 Jan;186(1):233-40. doi: 10.1148/radiology.186.1.8416571.
After definition of the normal anatomic features of the tarsal sinus and canal at magnetic resonance (MR) imaging, 123 ankle MR imaging studies in 116 patients were reviewed. Abnormalities of the tarsal sinus and canal were seen on MR images in 33 cases (26.8%), were highly associated with tears of the lateral collateral ligament, and could be categorized according to the pathologic findings in patients with sinus tarsi syndrome: (a) diffuse infiltration with low T1- and T2-weighted signal intensity (n = 17) consistent with fibrosis, (b) diffuse infiltration with low T1-weighted signal intensity and increased T2-weighted signal intensity (n = 11) consistent with chronic synovitis and nonspecific inflammatory changes, and (c) multiple abnormal fluid collections (n = 5) consistent with synovial cysts. Absence of the anterior microrecesses of the posterior subtalar joint was a common finding on normal MR imaging studies (46 of 90) and may reflect lack of iatrogenic joint distention. Tears of the posterior tibial tendon may have a previously unrecognized association with the sinus tarsi syndrome.
在通过磁共振（MR）成像明确跗窦和跗管的正常解剖特征后，回顾了116例患者的123次踝关节MR成像研究。在33例（26.8%）患者的MR图像上可见跗窦和跗管异常，这些异常与外侧副韧带撕裂高度相关，并且可根据跗骨窦综合征患者的病理表现进行分类：（a）T1加权和T2加权信号强度均低的弥漫性浸润（n = 17），符合纤维化；（b）T1加权信号强度低而T2加权信号强度增加的弥漫性浸润（n = 11），符合慢性滑膜炎和非特异性炎症改变；（c）多个异常液体积聚（n = 5），符合滑膜囊肿。距下后关节前微小隐窝缺如是正常MR成像研究中的常见表现（90例中有46例），可能反映缺乏医源性关节扩张。胫后肌腱撕裂可能与跗骨窦综合征存在以前未被认识到的关联。
