Hélénon O, Bastian D, Laval-Jeantet M
Service de Radiologie, Hôpital Saint-Louis, Vellefaux, Paris.
J Radiol. 1989;70(4):265-77.
The authors report the result of a study on 5 knees of fresh corpses explored with magnetic resonance imaging, including 1 examined before and after intraarticular contrast injection, and on 15 asymptomatic subjects examined with the same procedure. A very thorough study of the menisci and of their attachment, ie. The tibial insertion of the menisceal horns, the transverse ligament, and the meniscofemoral ligament, is possible with T1-weighted MR sequences. The T2-weighted sequences, either following intraarticular contrast injection or in cases of articular effusion, allow analyzing the capsular attachments of the posterior horn of the lateral meniscus and its relationships with the tendon of the popliteal muscle. Five misleading images must be known for the exploration of the menisci, in order to avoid a number of interpretation problems. Images of type I and II initial meniscus degeneration are observed in 47% of all cases (control group). One case of menisceal cyst developing in the anterior horn of the lateral meniscus, with anatomical correlation, is also reported.
作者报告了一项研究结果，该研究对5具新鲜尸体的膝关节进行了磁共振成像检查，其中1具在关节内注射造影剂前后均进行了检查，另外还对15名无症状受试者进行了同样的检查。利用T1加权磁共振序列可以对半月板及其附着结构，即半月板角的胫骨附着处、横韧带和半月板股骨韧带进行非常全面的研究。在关节内注射造影剂后或有关节积液的情况下，T2加权序列有助于分析外侧半月板后角的关节囊附着情况及其与腘肌肌腱的关系。为了避免一些解释问题，在半月板检查中必须了解5种误导性图像。在所有病例（对照组）中，47%观察到I型和II型半月板初始退变图像。还报告了1例外侧半月板前角发生半月板囊肿的病例，并进行了解剖学关联分析。
