Sagittal MR images of the knee: a low-signal band parallel to the posterior cruciate ligament caused by a displaced bucket-handle tear.

Weiss, Kenneth L.; Morehouse, Helen T.; Levy, I. Martin

doi:10.2214/ajr.156.1.1898543

Cited by 82 publications

(46 citation statements)

References 5 publications

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“…Possible explanation for this was given by De Smet et al [14] in their study, wherein they stated longitudinal tears of the medial meniscus which were identified on MRI had actually healed and was therefore not confirmed on arthroscopy. This hypothesis is also supported by Weis et al [15] in their study. They attributed this to the fact that most of the longitudinal tears were present in the outer 1/3 rd of the meniscus, which has a rich vascular supply and good potential for healing.…”

Section: Medial Meniscussupporting

confidence: 86%

Ligament and Meniscal Injuries Following Knee Trauma- Role of the Mri and Its Correlation With Arthroscopy

Juwarkar¹,

Pal²

2017

jemds

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BACKGROUNDMRI is an excellent imaging modality for assessing internal derangement of the knee. Its non-invasive nature, excellent soft tissue contrast and no radiation risk makes MRI a boon in knee imaging. The aims of the study are-1. To know the occurrence of meniscal and ligament injuries following knee injury. 2. To evaluate diagnostic performance of MRI following knee injury in correlation with arthroscopy.

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Section: Medial Meniscussupporting

confidence: 86%

Ligament and Meniscal Injuries Following Knee Trauma- Role of the Mri and Its Correlation With Arthroscopy

Juwarkar¹,

Pal²

2017

jemds

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“…The second pattern, present in 30.6% of the group, showed medial displacement of the fragment which lodged in the intercondylar notch itself. Two studies based on M R imaging describe a "double posterior cruciate ligament sign" with the fragment lying anterior to the posterior cruciate ligament [16,21].…”

Section: Discussionmentioning

confidence: 99%

“…Bucket-handle tears of the menisci usually involve the medial meniscus and begin with a vertical or oblique orientation that starts in the posterior horn and propagates longitudinally and anteriorly. The central portion of the torn meniscus usually migrates toward the intercondylar notch propelled by compressive forces [16,21]. Meniscal fragmentation may occur.…”

Section: Introductionmentioning

confidence: 99%

“…Although not present in all cases, it is important to identify these fragments since their removal results in clinical improvement [13]. Singson et al [16] and Weiss et al [21] described the appearance of displaced-bucket-handle fragments within the intercondylar notch anterior to the posterior cruciate ligament that may simulate a "double posterior cruciate ligament." We describe ten cases of meniscal tear in which the meniseal fragments, rather than migrating toward the intercondylar notch, moved anteriorly to sit directly on the anterior horn of the ipsilateral meniscus.…”

Section: Introductionmentioning

confidence: 99%

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The flipped meniscus sign

et al. 1993

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Meniscal fragments may be difficult to detect on magnetic resonance (MR) imaging and yet are clinically significant. This paper describes and illustrates the MR appearance of an easily overlooked meniscal fragment. Ten knees, each appearing to show an abnormally large anterior meniscal horn (8 mm or more in height) were prospectively identified on MR images. In each case demonstrable large tears of the ipsilateral posterior horns were present (same meniscus as had large anterior horns). The lateral meniscus was involved in nine cases and the medial in one. Two of the ten patients imaged had surgically proven bucket-handle meniscal tears as well as meniscal fragments overlying the ipsilateral anterior horn. In one case previous MR imaging at our institution had demonstrated the affected anterior horn to be of normal caliber. The striking MR appearance of an abnormally enlarged anterior meniscal horn in association with a tear of the ipsilateral posterior horn suggests the presence of a meniscal fragment or of a posteriorly detached bucket-handle tear of the posterior horn of the meniscus.

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“…Therefore , only demonstration of a centrally displaced fragment would be evidence for a meniscal tear( 13). Weiss et a1 (18) suggest that a low -signal band anterior and paralμ~I to the posterior cruciate 1 igament on sagittal MR images of the knee is caused by a medi 려 W displaced bucket handle tear of the medial meniscus. Singson et al (19) suggest that displaced bucket handle tears of the medial meniscus diagnosed by MR have a characteristic low signal band extending across the joint and projecting over the medial tibial eminence.…”

Section: Discussionmentioning

confidence: 99%

MR Classification of Tear Types and Popliteous Muscle Attachments in Lateral Disccid Menisci

Ryu¹,

Ahn²

1995

J Korean Radiol Soc

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Purpose : To determine the types of meniscal tears and type of popliteal muscle attachment in lateral discoid menisci.Materials and Methods: MR images from 40 patients with arthroscopically proven discoid meniscal tears were reviewed. The type of caps 비 ar attachment of the popliteal muscle in these patients was compared with 100 normal controls. Fourteen men and 26 women were included in this study ranging in age from 8 to 52 years.Results: Discoid mensical tears were divided into five types . Arthroscopic correlation revealed that thirty-six cases(90%) of discoid meniscal tears were correctly diagnosed using MR imaging. Peripheral tearwasthecommonestteartype occurring in 13 patients.ln 9 ofthesethe meniscal fragment was displaced. Horizontal tears occurred in 5, longitudinal tears in 4 and transverse tears in 2 patients. Multiple tears were present in 16 patients with the commonest combination of periphera I and horizonta l. Popliteal capsular attachments of discoid mensical tears were more prominent than in the normal control group.Conclusion: The types of tears in discoid menisci were different from normal meniscal tears. Peripheral detachment with displacement of torn segments was a very frequent finding in discoid mensical tears. Prominent caps 비 ar attachment of popliteal muscles is probably an associated finding in discoid menisci.

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Sagittal MR images of the knee: a low-signal band parallel to the posterior cruciate ligament caused by a displaced bucket-handle tear.

Cited by 82 publications

References 5 publications

Ligament and Meniscal Injuries Following Knee Trauma- Role of the Mri and Its Correlation With Arthroscopy

Ligament and Meniscal Injuries Following Knee Trauma- Role of the Mri and Its Correlation With Arthroscopy

The flipped meniscus sign

MR Classification of Tear Types and Popliteous Muscle Attachments in Lateral Disccid Menisci

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