Noninvasive evaluation of knee meniscal tears: preliminary comparison of MR imaging and CT.

Manco, Lawrence G.; Lozman, Jeffrey; Coleman, N D; Kavanaugh, J H; Bilfield, B S; Dougherty, Jaimie B.

doi:10.1148/radiology.163.3.3575723

Cited by 32 publications

(5 citation statements)

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“…Magnetic resonance imaging (MRI) has recently been found to be an effective noninvasive method to examine knee meniscal cartilage in vivo (13), and is useful for the diagnosis of acute meniscal tears (4)(5)(6)9,11,15,16,(20)(21)(22). Stoller et al (28) studied knees from autopsies or amputations of 12 subjects ranging in age from 50 to 89 years, and discovered a similarity between the extent of abnormal meniscal signals on MR imaging and the extent of mucinous degeneration on histopathology .…”

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confidence: 99%

Magnetic resonance imaging of meniscal degeneration in asymptomatic knees

Negendank

Fernandez-Madrid

Heilbrun

et al. 1990

Journal Orthopaedic Research

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Histopathological studies have suggested that spontaneous degeneration of knee menisci predisposes to symptomatic tears. We used magnetic resonance (MR) imaging to study noninvasively 20 patients with documented meniscal tears in one knee but asymptomatic contralateral knees, 18 normal controls, and 15 patients with symptomatic nonmeniscal knee disorders. A scoring system for MR signal changes was developed, and differences between the three groups were tested for significance by a multivariate analysis of covariance. MR signal changes in the menisci begin at around 30 years of age, progress with age, occur in both men and women, and occur in subjects who are inactive as well as those who undergo habitual knee stress exercises. Most subjects with documented meniscal tears in one knee have MR signals in the asymptomatic contralateral knee that reflect a more advanced degree of meniscal degeneration than in age-comparable normal controls or patients with nonmeniscal knee disorders. After adjustment for potential confounding variables, weight, and sex, the mean scores in the asymptomatic knee of patients with meniscal disease are significantly higher than those of normal controls (p = 0.021) and nonmeniscal disease patients (p = 0.019). These results document the occurrence of age-dependent degeneration within knee menisci, and support the hypothesis that a segment of the population has pre-existing meniscal degeneration predisposing them to traumatic or spontaneous meniscal tears.

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confidence: 99%

Magnetic resonance imaging of meniscal degeneration in asymptomatic knees

Negendank

Fernandez-Madrid

Heilbrun

et al. 1990

Journal Orthopaedic Research

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“…Meniscal morphology can also be modified: foreshortening of the anterior-posterior diameter, loss of sharpness of the freeedge, irregularity of the meniscal surfaces or changes of their slope (Fig. In children and young adults, however, it may correspond to normal vascular bundles (Beltran 1986a, b;Burk 1986;Herman and Beltran 1988;Manco 1987;Reicher 1985Spritzer 1988;Tyrrell 1988). A frequent finding in the posterior horns (particularly the medial) is an intramural (intrasubstance) tear, without extension to the articular surfaces ( Fig.…”

Section: Mri Appearancementioning

confidence: 99%

Magnetic Resonance Imaging and Spectroscopy in Sports Medicine

Osteaux¹,

Meirleir²,

Achten³

1991

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“…All prefer MRI to arthrography, however, both methods have diagnostic value in meniscal tears. Many authors prefer MRI to arthrography in the examination of cruciate and collateral ligaments (Manco et al, 1987;Lee et al, 1988;Mink et al, 1988). Because of the high sensitivity and accuracy, we studied the knee joint spaces of normal individual by MRI.…”

Section: Introductionmentioning

confidence: 99%