Parameniscal cyst formation in the knee is associated with meniscal tear size: An MRI study

Chia Chun Wu, Yi Chih Hsu, Ying Chun Chiu, Yue Cune Chang, Chian Her Lee, Hsain Chung Shen, Guo Shu Huang

研究成果: 雜誌貢獻文章

6 引文 斯高帕斯(Scopus)

摘要

Background: The relationship between meniscal tears and parameniscal cyst formation is contentious. We investigated whether the development of a parameniscal cyst is related to the size of the meniscal tear by using magnetic resonance imaging (MRI). Methods: On the basis of a retrospective review of an MRI database, we identified parameniscal cysts in 34 patients with adjacent meniscal tears extending to the meniscocapsular junction. The size of the meniscal tear was measured by dividing the length of the tear along two axes: circumferential and radial. We compared parameters, such as the size of the meniscal tear, the location of the tear, the pattern of each tear, and any associated ligamentous injury and intra-articular lesion, between the 34 patients and the 30 control patients who only had meniscal tears with torn components extending to the meniscocapsular junction. Results: Compared with the controls, patients with parameniscal cysts had significantly larger meniscal tears along the circumferential axis (P<0.001). A critical size of the meniscal tear along the circumferential axis of 12. mm was associated with the formation of a parameniscal cyst. Conclusions: A larger meniscal tear extending into the meniscocapsular junction is more likely to be associated with the occurrence of a parameniscal cyst. The critical size of the meniscal tear, 12. mm along the circumferential axis as identified using MRI, is a discrimination value for parameniscal cyst formation. Level of Evidence: Level III.

原文英語
頁(從 - 到)556-561
頁數6
期刊Knee
20
發行號6
DOIs
出版狀態已發佈 - 十二月 2013

ASJC Scopus subject areas

  • Orthopedics and Sports Medicine

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    Wu, C. C., Hsu, Y. C., Chiu, Y. C., Chang, Y. C., Lee, C. H., Shen, H. C., & Huang, G. S. (2013). Parameniscal cyst formation in the knee is associated with meniscal tear size: An MRI study. Knee, 20(6), 556-561. https://doi.org/10.1016/j.knee.2013.03.008