Magnetic Resonance Imaging of the Knee in Children and Adolescents

Luhmann, Scott J.; Schootman, Mario; Gordon, Joel; Wright, Rick W.

doi:10.2106/jbjs.c.01630

Cited by 44 publications

(21 citation statements)

References 31 publications

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“…We cannot determine from this study whether the condylar cutoff sign will be useful for diagnosis of incomplete discoid meniscus. Additionally, the difficulty in diagnosing pediatric and adolescent knee problems has been described [11,13]. Kocher et al [11] suggested selective MRI does not provide enhanced diagnostic utility over clinical examination, particularly in children.…”

Section: Discussionmentioning

confidence: 99%

The Condylar Cutoff Sign: Quantifying Lateral Femoral Condylar Hypoplasia in a Complete Discoid Meniscus

Ha¹,

Lee

Park³

2009

Clinical Orthopaedics &Amp; Related Research

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We describe the condylar cutoff sign, a radiographic sign in knees with a discoid lateral meniscus, for diagnosis of complete discoid meniscus. We retrospectively reviewed tunnel-view radiographs of 100 patients (100) knees including 50 with complete discoid lateral meniscus and 50 with normal menisci. All patients were 18 years of age or older. All of the knees were arthroscopically examined. We developed a method to measure the prominence of the femoral condyle adjacent to the intercondylar notch on a tunnel view of the knee. The prominence ratio, the ratio of the medial and lateral condylar prominence, was compared and analyzed. The measurements were performed by three observers on two separate occasions to determine reliability. The intraobserver and interobserver variability study revealed high reliability with correlation coefficients ranging from 0.86 to 0.99. Using a cutoff ratio of 0.8, we observed a major difference between the two groups and found the ratio had 76% sensitivity, 96% specificity, 95% positive predictive value, and 80% negative predictive value in every set of measurements. The sign has high specificity and reliability but might not apply to younger patients.

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Section: Discussionmentioning

confidence: 99%

The Condylar Cutoff Sign: Quantifying Lateral Femoral Condylar Hypoplasia in a Complete Discoid Meniscus

Ha¹,

Lee

Park³

2009

Clinical Orthopaedics &Amp; Related Research

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“…10,11,33 Based on the current development of various cartilage-specific sequences for improving sensitivity, the status of 3-T MRI as an accurate diagnostic tool, especially for grade III and IV cartilage defects, can be confirmed. 25,30,[34][35][36] von Engelhardt et al 30 reported a uniform (medial, lateral) distribution of grade I/II defects in 3-T MRI examinations. High-grade lesions (grade III/IV) showed a predilection for medial localization.…”

Section: Discussionmentioning

confidence: 99%

Mapping tibiofemoral gonarthrosis: an MRI analysis of non-traumatic knee cartilage defects

Evangelopoulos

Huesler

Ahmad

et al. 2015

BJR

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Objective: Arthroscopy is "the gold standard" for the diagnosis of knee cartilage lesions. However, it is invasive and expensive, and displays all the potential complications of an open surgical procedure. Ultra-high-field MRI now offers good opportunities for the indirect assessment of the integrity and structural changes of joint cartilage of the knee. The goal of the present study is to determine the site of early cartilaginous lesions in adults with non-traumatic knee pain. Methods: 3-T MRI examinations of 200 asymptomatic knees with standard and three-dimensional doubleecho steady-state (3D-DESS) cartilage-specific sequences were prospectively studied for early degenerative lesions of the tibiofemoral joint. Lesions were classified and mapped using the modified Outerbridge and modified International Cartilage Repair Society classifications.Results: A total of 1437 lesions were detected: 56.1% grade I, 33.5% grade II, 7.2% grade III and 3.3% grade IV. Cartographically, grade I lesions were most common in the anteromedial tibial areas; grade II lesions in the anteromedial L5 femoral areas; and grade III in the centromedial M2 femoral areas. Conclusion: 3-T MRI with standard and 3D-DESS cartilagespecific sequences demonstrated that areas predisposed to early osteoarthritis are the central, lateral and ventromedial tibial plateau, as well as the central and medial femoral condyle. Advances in knowledge: In contrast with previous studies reporting early cartilaginous lesions in the medial tibial compartment and/or in the medial femoral condyle, this study demonstrates that, regardless of grade, lesions preferentially occur at the L5 and M4 tibial and L5 and L2 femoral areas of the knee joint.

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“…Most (four) of the seven studies examined the medial femoral condyle; however, some studies also evaluated the lateral femoral condyle, tibia, patella, and trochlea (Table I). Three of the seven studies did not note which articular surface and/or compartment of the knee had osteochondral lesions 14,16,17 . The MRI magnet strengths used in the studies were between 0.35 and 3.0 T. As a result of inconsistencies between imaging techniques and methodological shortcomings of many of the studies, a meta-analysis was not performed.…”

mentioning

confidence: 98%

“…1). Four Level-II 11-14 and three Level-III studies [15][16][17] were included in the final analyses. The results are outlined in Table I.…”

mentioning

confidence: 99%

“…Several different staging criteria were used to identify the severity of the lesions and are described in the literature 11,[18][19][20][21][22][23] . Studies by Kocher et al, Luhmann et al, and Hung and Huang did not have descriptions of severity grading systems or utilize established criteria to assess the stability of the osteochondritis dissecans lesions [15][16][17] . Most (four) of the seven studies examined the medial femoral condyle; however, some studies also evaluated the lateral femoral condyle, tibia, patella, and trochlea (Table I).…”

mentioning

confidence: 99%

See 1 more Smart Citation

The Clinical Utility and Diagnostic Performance of MRI for Identification and Classification of Knee Osteochondritis Dissecans

Quatman¹,

Quatman‐Yates

Schmitt³

et al. 2012

Journal of Bone and Joint Surgery

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Magnetic Resonance Imaging of the Knee in Children and Adolescents

Cited by 44 publications

References 31 publications

The Condylar Cutoff Sign: Quantifying Lateral Femoral Condylar Hypoplasia in a Complete Discoid Meniscus

The Condylar Cutoff Sign: Quantifying Lateral Femoral Condylar Hypoplasia in a Complete Discoid Meniscus

Mapping tibiofemoral gonarthrosis: an MRI analysis of non-traumatic knee cartilage defects

The Clinical Utility and Diagnostic Performance of MRI for Identification and Classification of Knee Osteochondritis Dissecans

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