Diagnostics of degenerative meniscal tears at 3-Tesla MRI compared to arthroscopy as reference standard

Engelhardt, Lars Victor von; Schmitz, Alfred; Pennekamp, P. H.; Schild, Hans H.; Wirtz, Dieter Christian; Falkenhausen, F. von

doi:10.1007/s00402-007-0485-6

Cited by 43 publications

(22 citation statements)

References 32 publications

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“…Quantitative MRI offers an advantage over arthroscopy in regards to meniscal assessment 19,43. While arthroscopy can only examine the surface areas of the meniscus, MR imaging can examine the entire meniscus 30.…”

Section: Discussionmentioning

confidence: 99%

“…While arthroscopy can only examine the surface areas of the meniscus, MR imaging can examine the entire meniscus 30. Furthermore, the PHMED is difficult to visualize using arthroscopy, accounting for the decreased accuracy of detection of meniscal tears 19, 30,43. In contrast, MRI can be used to accurately detect meniscal tears in the medial compartment.…”

Section: Discussionmentioning

confidence: 99%

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Cartilage and meniscus assessment using T1rho and T2 measurements in healthy subjects and patients with osteoarthritis

Zarins

Bolbos

Pialat

et al. 2010

Osteoarthritis and Cartilage

153

182

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Objective The purpose of this study was to evaluate meniscal degeneration in healthy subjects and subjects with osteoarthritis (OA) using T1ρ and T2 measurements and to examine the interrelationship between cartilage and meniscus abnormalities. Methods Quantitative assessment of cartilage and meniscus was performed using 3T MRI with a T1ρ and T2 mapping technique in 19 controls and 44 OA patients. A sagittal T2-weighted fast spin echo (FSE) fat-saturated image was acquired for cartilage and meniscal Whole-Organ Magnetic Resonance Imaging Score (WORMS) assessment. Western Ontario and McMaster University (WOMAC) scores were obtained to assess clinical symptoms. Results The posterior horn of the medial meniscus (PHMED) had the highest incidence of degeneration. Stratifying subjects on the basis of PHMED grade revealed that the T1ρ and the T2 measurements of the PHMED and the medial tibial (MT) cartilage were higher in subjects having a meniscal tear (meniscal grade 2–4) compared to subjects with a mensical grade of 0 or 1 (p<0.05). While not statistically significant, there was a trend for T1ρ and T2 being higher in PHMED grade 1 compared to grade 0 (p=0.094, p=0.073 respectively). WOMAC scores had a stronger correlation with meniscus relaxation measures than cartilage measures. Conclusions MR T1ρ and T2 measurements provide a noninvasive means of detecting and quantifying the severity of meniscal degeneration. Meniscal damage has been implicated in OA progression and is correlated with cartilage degeneration. Early detection of meniscal damage represented by elevations in meniscal relaxation measures may identify subjects at increased risk for OA.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Cartilage and meniscus assessment using T1rho and T2 measurements in healthy subjects and patients with osteoarthritis

Zarins

Bolbos

Pialat

et al. 2010

Osteoarthritis and Cartilage

153

182

View full text Add to dashboard Cite

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“…tears that extend to the tibial surface more commonly than those extending to the femoral surface (24). The reason for this finding is unclear.…”

Section: Comparison Of Mean Values Of Normal and Abnormal Samplesmentioning

confidence: 97%

Thickness of the Meniscal Lamellar Layer: Correlation with Indentation Stiffness and Comparison of Normal and Abnormally Thick Layers by Using Multiparametric Ultrashort Echo Time MR Imaging

Choi¹,

Biswas²,

Bae³

et al. 2016

Radiology

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Purpose:To determine the relationship between lamellar layer thickness on ultrashort echo time (UTE) magnetic resonance (MR) images and indentation stiffness of human menisci and to compare quantitative MR imaging values between two groups with normal and abnormally thick lamellar layers. Materials and Methods:This was a HIPAA-compliant, institutional review boardapproved study. Nine meniscal pieces were obtained from seven donors without gross meniscal pathologic results (mean age, 57.4 years 6 14.5 [standard deviation]). UTE MR imaging and T2, UTE T2*, and UTE T1r mapping were performed. The presence of abnormal lamellar layer thickening was determined and thicknesses were measured. Indentation testing was performed. Correlation between the thickness and indentation stiffness was assessed, and mean quantitative MR imaging values were compared between the groups. Results:Thirteen normal lamellar layers had mean thickness of 232 mm 6 85 and indentation peak force of 1.37 g 6 0.87. Four abnormally thick lamellar layers showed mean thickness of 353.14 mm 6 98.36 and peak force 0.72 g 6 0.31. In most cases, normal thicknesses showed highly positive correlation with the indentation peak force (r = 0.493-0.912; P , .001 to .05). However, the thickness in two abnormal lamellar layers showed highly negative correlation (r = 20.90, P , .001; and r = 20.23, P = .042) and no significant correlation in the others. T2, UTE T2*, and UTE T1r values in abnormally thick lamellar layers were increased compared with values in normal lamellar layers, although only the UTE T2* value showed significant difference (P = .010).

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“…Arguments for and against arthroscopy or NMR realisation are constantly discussed in cases of acute knee haemarthrosis (5). NMR diagnostic importance should not been underestimated in relation to number of false positivity or negativity (8).…”

Section: Discussionmentioning

confidence: 99%

Traumatic haemarthrosis of the knee – indication to acute arthroscopy

Bilik¹,

Krtička²,

Kvasnička³

2012

BLL

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Background and aims:The most common mechanisms of the knee injuries are distorsions and contusions. Fairly often they will result in hemarthrosis. The purpose of this study was to evaluace the fi ndings in patiens with acute traumatic hemarthrosis of the knee and based on these fi ndings estimate the necessity of acute artroscopic examination with therapeutic procedur. Results: The ruptures of the ACL were the most common fi ndings (52 %), meniscal tear (27 %), dislocation of the patella (11 %) and chondral or subchondral fractures were (13 %). In 224 (84 %) cases was performed artroscopic therapeutic procedure and in only 43 (16 %) case was performed routine arthroscopic examination. Conclusions: Based on our fi ndings we believe that arthroscopic examination is necessary in patiens with acute traumatic haemarthrosis of the knee and it is better methods like NMR examination because is provided to execute therapeutic procedure (Tab. 1, Fig. 2 Knee contusion and distorsion are the most frequent injury mechanisms in sporting and unsporting activities. Pain, swelling and tension sanguine knee exudate is rising in few hours after acute knee injury. Traumatic knee haemarthrosis presents diagnostic diffi culty in acute injury stage, it limits knee investigation and it should be disabled because of the pain. Nowadays, patient with acute knee haemarthrosis should be defi nitely admitted on Orthopaedic or Trauma Surgery Department.The most frequent knee haemartrosis causations (except X-ray verifi ed intraarticular fractures) are: anterior cruciate ligament rupture, meniscus rupture, patella luxation, collateral medial ligament rupture, chondral or osteochondral fractures and capsular tears.Nuclear magnetic resonance (NMR) opens new chances in acute knee injury diagnostic. Intraarticular or extraarticular knee lesions are not only NMR benefi ts. On the other side there is a problem of NMR availability and waiting period for this examination.Arthroscopy (ASC) is gold standard diagnostic method for intraarticular knee injury. Naturally, ASC has disadvantages, such as invasivity (risk of surgery) and this method can not verify associated extraarticular injuries, which NMR can. The arthroscopy is method of choice in patients with acute knee haemarthrosis, regarding to its good availability and exact intraarticular injury diagnostic possibilities in conjuction with clinical examination in general anaesthesia. MethodsFrom January 2007 to December 2009 267 injured knees were treated in 266 patients with acute knee haemarthrosis in our department. One patient had injured both knees. 121 patients underwent acute knee arthroscopy till 24 hours from injury, 87 patients till 48 hours and in 58 patients till 72 hours from injury. Patients with patella fractures, femoral or tibial condyl fractures except intercondylar eminence were excluded from this study.151 men and 115 women were treated in our patient fi le. Mean age of our patients was 33 yeas (17-81 years). Out-patients with acute knee haemarthrosis were promptly admit...

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Diagnostics of degenerative meniscal tears at 3-Tesla MRI compared to arthroscopy as reference standard

Cited by 43 publications

References 32 publications

Cartilage and meniscus assessment using T1rho and T2 measurements in healthy subjects and patients with osteoarthritis

Cartilage and meniscus assessment using T1rho and T2 measurements in healthy subjects and patients with osteoarthritis

Thickness of the Meniscal Lamellar Layer: Correlation with Indentation Stiffness and Comparison of Normal and Abnormally Thick Layers by Using Multiparametric Ultrashort Echo Time MR Imaging

Traumatic haemarthrosis of the knee – indication to acute arthroscopy

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