Discoid lateral meniscus can be overlooked by magnetic resonance imaging in patients with meniscal tears

Abstract

Level I.

A Reliable, Ultrasound-Based Method for the Diagnosis of Discoid Lateral Meniscus

“…We acknowledge that there are some limitations to our study. First, MRI was acted as the "gold standard" for DLM 21 , without further confirmation through arthroscopy. Second, we did not differentiate between complete and incomplete types of DLM.…”

Evaluation of anterior intermeniscal ligament in discoid lateral meniscus cases and presenting the accompanying meniscal pathologies with MRI

“…Despite the results of Sohn et al. (29), the nature of meniscal tears was mostly oblique (15/31). Contrary to the studies of Bin (28) and Araki (26), MM tears with type I DLM had only an oblique pattern, whereas type II DLM cases had different tear patterns.…”

“…reported that MRI showed that 35 knees had radial tears (45%, 35/78) and 34 knees had horizontal tears (44%, 34/78) as solely or a component of combined meniscus tear in 78 knees with DLM. Radial tears were found to be the most common pattern of tears and horizontal tears were the second most common (29).…”

Chinese Experts Consensus and Practice Guideline on Discoid Lateral Meniscus

“…100,101 In addition, MRI has a certain diagnostic value in classification, tear type and location, and peripheral rim stability of DLM. 48,95,[102][103][104][105][106][107] The diagnostic specificity and sensitivity of MRI in adult DLM tears are 100% and 97.8%, 108 but in children's DLM and its lesions are still controversial. 47,109,110 In patients with unilateral symptomatic DLM, the probability of DLM in the contralateral knee is about 73%-97%, 6 and of the same type in both is 88%.…”