Imaging of the Postoperative Meniscus

被引:8
作者
Chapin, Russell [1 ]
机构
[1] Med Univ South Carolina, Dept Radiol, 96 Jonathan Lucas St,MSC 323, Charleston, SC 29425 USA
关键词
Postoperative knee; Meniscectomy; Meniscal repair; MR imaging; MR arthrography; MR ARTHROGRAPHY; CONTRAST MATERIAL; UNITED-STATES; REPAIR; TEARS; KNEE; MENISCECTOMY; DIAGNOSIS; TRENDS; TRANSPLANTATION;
D O I
10.1016/j.rcl.2018.06.007
中图分类号
R8 [特种医学]; R445 [影像诊断学];
学科分类号
1002 ; 100207 ; 1009 ;
摘要
In the postmeniscectomy or meniscal repair setting, there is overlap between expected postoperative change and findings of a re-torn meniscus, particularly increased T1-weighted or proton density signal contacting the articular surface. Protocol selection and accurate diagnosis requires knowledge of meniscal tear treatment, the expected postoperative appearance, and criteria for re-tear. Criteria for meniscal re-tear on MR imaging are high T2-weighted signal reaching the articular surface, abnormal meniscal morphology not explained by the surgery, or a displaced fragment. When MR arthrography is performed, a meniscal tear may or may not exhibit signal intensity as high as that of the intraarticular contrast.
引用
收藏
页码:953 / +
页数:13
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