Factors associated with bilateral discoid lateral meniscus tear in patients with symptomatic discoid lateral meniscus tear using MRI and X-ray

Kim, Seong Hwan; Bae, Chan Il; Kim, Kang‐Il; Lee, Joong Won; Lee, Sang Hak

doi:10.1016/j.otsr.2019.08.007

Cited by 14 publications

(14 citation statements)

References 18 publications

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“…Consequently, a complete and incomplete type of DLM may produce a similar effect on the axial alignment of the lower limb, resulting in similar cartilage injury rates in the medial compartment. Kim et al [19] found no signi cant differences in chondral lesions between complete and incomplete DLM. Ding et al [12] also reported that no statistical signi cance in the relation between the different types of DLM and articular cartilage lesions, corroborating with the results from the present study.…”

Section: Discussionmentioning

confidence: 93%

Effect of discoid lateral meniscus on tibiofemoral joint cartilage damage in middle-aged patients

Sulaiman

et al. 2021

Preprint

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Purpose: To investigate the effect of discoid lateral meniscus (DLM) on cartilage damage of the medial and lateral compartments of the knee in middle-aged patients.Methods: We analyzed data from 44 patients (54 knees) with symptomatic discoid lateral meniscus (DLM group) and 30 patients (30 knees) with a non-discoid lateral meniscus tear (control group). All patients were over 40 years old. We compared the tibiofemoral angle (TFA) and cartilage injury rate between the two groups. We further classified DLM group patients based on dysmorphic features of the menisci (DLM type), presence/absence of meniscal tear, and symptom durations, then analyzed whether these parameters could affect the number of cartilage injuries in the knee medial and lateral compartments.Results: DLM group showed higher TFA values (2.18°±2.86°) than control group (0.84°±1.35°, P=0.002), and a higher occurrence of medial compartment cartilage damage (P=0.003). Within the DLM group, patients with cartilage damage showed higher BMI than those without cartilage damage (P=0.009 for medial compartment and P=0.001 for lateral, respectively). We found that having symptoms for more than 6 months was associated with cartilage damage in the lateral compartment (P=0.021), but not the medial compartment (P=0.858). Neither presence/absence of a meniscal tear, nor DLM type affected cartilage injury rate in either the medial or lateral compartment (P>0.05).Conclusion: Varus inclination caused by DLM could lead to cartilage injury in the medial compartment in middle-aged patients, but may not reduce the occurrence of chondral damage in the lateral compartment. Rather, lateral compartment chondral damage in patients with DLM was mainly related to symptom duration.

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Section: Discussionmentioning

confidence: 93%

Effect of discoid lateral meniscus on tibiofemoral joint cartilage damage in middle-aged patients

Sulaiman

et al. 2021

Preprint

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“…Exclusion criteria were: (1) patients with blurred MRI scans, (2) patients with knee joint bone tumors, (3) knee trauma that may affect normal bone morphology, and (4) other conditions that may affect the recognition of the knee bone morphology.…”

Section: Subjectsmentioning

confidence: 99%

“…The incidence of the DLM is 15% in the Asian population, which is higher than that in other populations [1]. Compared to knees with other types of meniscus, knees with complete DLM are more prone to tears due to the larger morphology [2,3]. According to a previous study, hypoplasia of the lateral tibial plateau and the lateral femoral condyle was impacted by the morphological features of the DLM [4].…”

Section: Introductionmentioning

confidence: 99%

Evaluation of tibial eminence morphology using coronal MRI scans in juvenile patients with complete discoid lateral meniscus

Liu

Kang

et al. 2022

Preprint

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Background:Many studies have shown that hypoplasia of knee bone morphology is related to the morphological features of the discoid lateral meniscus (DLM). However, few studies have focused on hypoplasia of tibial eminence morphology in juvenile patients with complete DLM. The purpose of this study was to determine the relationship between tibial eminence morphology characteristics and complete DLM in juvenile patients. Methods: The DLM group comprised 34 juvenile patients with complete DLM, and the control group comprised 34 juvenile individuals, each with a normal lateral meniscus based on magnetic resonance imaging (MRI) findings. All parameters, including tibial width (TW), tibial eminence width (TEW), the height of the lateral tibial spine (HLTS), the height of the medial tibial spine (HMTS), lateral slope angle of the lateral tibial eminence (LSALTE), lateral slope angle of the medial tibial eminence (LSAMTE), tibial eminence width ratio (TEWR), height of the lateral tibial spine ratio (HLTSR), and the height of the medial tibial spine ratio (HMTSR), were recorded using coronal MRI scans. Statistical analyses were used to determine the differences between the two groups and whether differences were significant. Results: The TEW and TEWR were significantly greater (P<0.05), and LSALTE and LSAMTE were significantly smaller (P<0.05) in patients in the DLM group than in participants in the control group. Receiver operating characteristic (ROC) analysis revealed that a larger TEW, above 13.4 mm, was associated with complete DLM, with a sensitivity of 77.0% and specificity of 88.2%, and a larger TEWR, above 19.7%, was associated with complete DLM, with a sensitivity of 76.5% and specificity of 91.2%. Conclusions: This study recognized hypoplasia of tibial eminence morphology in juvenile patients with complete DLM using coronal MRI scans. Additionally, TEW and TEWR could help clinicians screen for complete DLM in juvenile patients.

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“…Discoid lateral meniscus (DLM) is the most common abnormal meniscal anatomical variant of the knee joint in children, especially in Asian populations (Kim et al 2019), and bilateral DLM has been reported to occur in 78% of pediatric patients with a DLM-related knee joint (Song et al 2015). DLM is a broad term that describes a spectrum of disorders pertaining to the shape, size, thickness and mobility of the menisci (Song et al 2015;Restrepo et al 2019).…”

Section: Introductionmentioning

confidence: 99%

Diagnostic Value of Ultrasound in Children with Discoid Lateral Meniscus Using Either an Intracavitary Convex Array Probe or a Linear Array Probe

Liang³

et al. 2021

Ultrasound in Medicine & Biology

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This prospective study aimed to assess the usefulness of an intracavitary convex array probe (ICAP) in visualizing the lateral meniscus (LM) and improving the diagnostic utility of ultrasound (US) when diagnosing or screening for discoid lateral meniscus (DLM) in children. We included 105 knees (66 patients) that had symptomatic or asymptomatic DLM. We extracted and retrospectively reviewed data regarding patient demographics, medical records, magnetic resonance imaging (MRI), ultrasonographic features and arthroscopic findings. The inner edge of the LM visualized using an ICAP was significantly clearer than that visualized using a linear array probe, and the difference was significant (p < 0.01). The edges were better visualized in patients aged <8 y than in those aged >8 y, and the difference was significant (p < 0.001). The average widths of the LM body using an ICAP and MRI were 19.85 § 3.63 and 24.46 § 4.94 mm, respectively, and the wider the meniscal width, the greater was the deviation between the US and MRI measurements, which were positively correlated (r = 0.612, p < 0.001). With the use of MRI measurements and an ICAP, meniscal widths in poorly visualized LMs were greater than those in clearly visualized LMs, but this difference was not significant (p = 0.161). US scans using an ICAP and MRI were highly consistent in assessing the shape of the menisci (k = 0.849, p < 0.001). US scan using an ICAP is a non-invasive, convenient and low-cost modality for diagnosing or screening for DLM in the pediatric population, especially in children aged <8 y.

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Factors associated with bilateral discoid lateral meniscus tear in patients with symptomatic discoid lateral meniscus tear using MRI and X-ray

Cited by 14 publications

References 18 publications

Effect of discoid lateral meniscus on tibiofemoral joint cartilage damage in middle-aged patients

Effect of discoid lateral meniscus on tibiofemoral joint cartilage damage in middle-aged patients

Evaluation of tibial eminence morphology using coronal MRI scans in juvenile patients with complete discoid lateral meniscus

Diagnostic Value of Ultrasound in Children with Discoid Lateral Meniscus Using Either an Intracavitary Convex Array Probe or a Linear Array Probe

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