Gyftopoulos Soterios, Rosenberg Zehava Sadka, Schweitzer Mark E, Bordalo-Rodrigues Marcelo
Department of Radiology, Beth Israel Medical Center, First Ave. at 16th St., New York, NY 10003, USA.
AJR Am J Roentgenol. 2008 Mar;190(3):W182-6. doi: 10.2214/AJR.07.2947.
The MRI features of the proximal rectus femoris musculotendinous junction have scarcely been described in the literature. The purpose of our study, based on a review of 50 asymptomatic and 20 symptomatic MRI studies, was to define the normal MRI anatomy and MRI features of intrasubstance injury of deep musculotendinous tears of the proximal rectus femoris.
Axial and coronal MR images are optimal for visualizing the direct and indirect heads, the conjoined tendon, and the deep musculotendinous junction of the proximal rectus femoris. Tears of the deep musculotendinous junction are longitudinal, involving a long segment of the muscle. MRI features include a "bull's-eye" sign, longitudinal scar, retraction, pseudocyst, and hematoma.
文献中几乎未描述过股直肌近端肌腱结合部的MRI特征。我们的研究基于对50例无症状和20例有症状的MRI研究进行回顾，目的是明确股直肌近端深部肌腱撕裂的正常MRI解剖结构及实质内损伤的MRI特征。
轴位和冠状位MR图像最有利于观察股直肌近端的直接头和间接头、联合肌腱以及深部肌腱结合部。深部肌腱结合部的撕裂呈纵向，累及肌肉的长段。MRI特征包括“靶征”、纵向瘢痕、回缩、假囊肿和血肿。
