Discoid Lateral Meniscus in Children: Clinical Manifestations and Morphology

Ahn, Jin Hwan; Shim, Jong Sup; Hwang, Chanseok; Oh, Won Hyeok

doi:10.1097/01241398-200111000-00022

Cited by 52 publications

(39 citation statements)

References 12 publications

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“…DLM is more prevalent in Asian populations, including Japanese people. Compared to a normal lateral meniscus, DLM is reported to be more prone to tears [5,6]. A torn DLM causes knee pain due to catching or locking of the knee and may result in decreased range of motion.…”

Section: Introductionmentioning

confidence: 99%

Tibial eminence width can predict the presence of complete discoid lateral meniscus: A preliminary study

Hino

Furumatsu

Fujii

et al. 2017

Journal of Orthopaedic Science

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Section: Introductionmentioning

confidence: 99%

Tibial eminence width can predict the presence of complete discoid lateral meniscus: A preliminary study

Hino

Furumatsu

Fujii

et al. 2017

Journal of Orthopaedic Science

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“…In our case, the most evident symptom was limited knee extension, which is more commonly seen at children than adults [6,9,10]. According to Ahn et al, this finding is more commonly seen at patients who have thickened anterior horns at MRI [9]. On the contrary, some authors suggest that this is more common at patients who has unstable posterior peripheral at-tachments or unstable tears, which displaces anteriorly during knee extension and impinges [11].…”

Section: Discussionmentioning

confidence: 69%

Subtle Bucket-Handle Tear Of A Discoid Lateral Meniscus In A 6 Year Old Girl

Bek¹,

Bilekli²,

Ege³

et al. 2015

Gulhane Med J

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ÖZETBu yazıda, 6 yaşındaki bir kız hastada diz ekstansiyon kısıtlılığına yol açan, diskoid lateral menisküsün güç farkedilen bir kova sapı yırtığını sunmaktayız. Nadir görülen bu olgunun, özellikle artroskopik cerrahi ile ilgilenen tüm ortopedik cerrahlarca tanınabilmesi önemlidir. Anahtar Kelimeler: Artroskopi, çocuk, diskoid lateral menisküs, kova sapı yırtık SUMMARYWe report a subtle bucket-handle tear of discoid lateral meniscus causing knee extension blockage in a 6 year old girl. This rare presentation should be recognised by all orthopaedic surgeons practising arthroscopic surgery.

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“…Knee EB in patients with DLM is a common clinical manifestation along with pain, with a reported prevalence varying from 6-67%. 16−20 Yoo and colleagues 20 and Ahn and colleagues 18 suggested that the mechanisms of knee EB in DLM were anteriorly impinged DLM due to instability with or without tear, pain associated with synovitis, and thick anterior meniscal tissue. This clinical manifestation usually resolves after arthroscopic treatment with stretching exercises at home.…”

Section: Discussionmentioning

confidence: 99%

Is the Fibula High in Children and Adolescents with Discoid Lateral Meniscus?

Jang¹,

Lim²,

Shin³

et al. 2020

Preprint

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Background A high fibular location on plain radiographs has been considered suggestive of a discoid lateral meniscus (DLM). We sought to determine whether the high location of the fibular head observed in DLM patients represents a true pathologic finding. Methods Eighty-two patients with symptomatic DLM who underwent arthroscopic treatment constituted the study group (DLM group). The same number of age-matched patients without DLM (control group) were recruited. The DLM group was further divided according to the presence or absence of a knee extension block (EB) of more than 10 degrees into EB(+) and EB(-) subgroups. We defined the compensated distance to the fibular head (CDF) as the distance from the lateral joint line to the tip of the fibular head divided by the femoral condylar width. CDF values measured on anteroposterior (AP) plain radiographs and sagittal MR images were compared between the DLM and control groups and between the EB(+) and EB(-) subgroups. Results There was no significant difference in the mean preoperative CDF value on either AP plain radiographs or sagittal MR images between the DLM and control groups. However, the mean CDF value on AP plain radiographs was significantly lower in the EB(+) subgroup than in the EB(-) subgroup ( p =0.011). The knee EB disappeared in all patients after arthroscopic treatment when the CDF on AP plain radiographs showed no significant difference between subgroups ( p >0.05). Linear regression analysis revealed that the CDF on AP plain radiographs decreased significantly when knee flexion was increased from 0 to 30 degrees ( p =0.003). Conclusions The high fibular location observed on AP plain radiography in DLM patients was associated with limited knee extension. Altered X-ray beam projection to the flexed knee creates the false appearance of a high fibular location on AP plain radiography.

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Discoid Lateral Meniscus in Children: Clinical Manifestations and Morphology

Cited by 52 publications

References 12 publications

Tibial eminence width can predict the presence of complete discoid lateral meniscus: A preliminary study

Tibial eminence width can predict the presence of complete discoid lateral meniscus: A preliminary study

Subtle Bucket-Handle Tear Of A Discoid Lateral Meniscus In A 6 Year Old Girl

Is the Fibula High in Children and Adolescents with Discoid Lateral Meniscus?

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