Magnetic resonance imaging of the knee

Chien, Alexander; Weaver, Jennifer S.; Kinne, Erica; Omar, Imran M.

doi:10.5114/pjr.2020.99415

Cited by 22 publications

(21 citation statements)

References 101 publications

(206 reference statements)

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“…When examining the MRI acquisitions, we found that the sagittal slices offered the most detailed view of the signal intensity in the quadriceps tendon and its trilaminar aspect, as has been described in previous reports ( 13 , 14 , 32 - 34 ) . In addition, the mean dimensions of the tendons evaluated in our study seem to be in agreement with data in the literature ( 34 ) , despite the scarcity of studies describing such measures.…”

Section: Discussionsupporting

confidence: 71%

Morphometric magnetic resonance imaging study of the quadriceps tendon in hemodialysis patients: comparison with non-dialyzed controls

et al. 2022

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Objective: To evaluate the knees of individuals with renal failure who are on hemodialysis, using magnetic resonance imaging (MRI), comparing them with those of a group of individuals with normal renal function. Materials and Methods: This was a cross-sectional, observational, controlled study conducted between August 2018 and February 2020. The cases consisted of 15 patients who had been on hemodialysis for ≥ 5 years and did not have a quadriceps tendon rupture. The controls consisted of 15 individuals with normal renal function who were matched (1:1) to the cases for sex, age, and physical activity level. The subjects in both groups underwent MRI of the right knee only. Results: The mean ages of the cases and controls were 50 ± 15 years and 49 ± 14 years, respectively. The median time on hemodialysis was 11 years (range, 10-14 years). Serum levels of parathyroid hormone, ferritin, alkaline phosphatase, phosphorus, and creatinine were higher among the cases than among the controls, whereas serum albumin and hemoglobin were lower (p < 0.05 for all). The MRI study showed a hyperintense signal in the quadriceps tendon in 11 of the cases and in three of the controls (p = 0.009). Knee joint effusion was observed in nine of the cases and in three of the controls (p < 0.05). The thickness, length, and width of the tendon did not differ between the groups. A hyperintense signal in the tendon was not associated with the time on hemodialysis; nor with the levels of intact parathyroid hormone, hemoglobin, or alkaline phosphatase. Conclusion: Patients on chronic hemodialysis, even those without a tendon rupture, show a hyperintense signal in the quadriceps tendon on MRI.

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Section: Discussionsupporting

confidence: 71%

Morphometric magnetic resonance imaging study of the quadriceps tendon in hemodialysis patients: comparison with non-dialyzed controls

et al. 2022

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“…However, these signs are considered extremely important in identifying ACL tear and its type. 19 The clinical examinations for internal derangement of the knee further confirmed the ACL tear. In the present study, Lachman's test was positive for 32 (80%) ACL cases, the posterior drawer test was evident for 19 (47.5%) cases, Mcmurray's test was positive for 22 (55%) cases, the valgus strain was apparent for 28 (70%) patients, and Varus strain was affirmative for 30 (75%) cases.…”

Section: Discussionmentioning

confidence: 76%

“…The angle of 2 o was found to mean Blumensaat's line-ACL angle for a partial ACL tear, whereas 26 o was estimated for a complete ACL tear. 19 The angle of 122 o was calculated to be the mean PCL angle for a partial ACL tear, whereas 105 o was estimated for a complete ACL tear. 15 The mean anterior tibial displacement was calculated as 5mm for a partial ACL tear, whereas 8mm was evident for complete ACL tears.…”

Section: Discussionmentioning

confidence: 99%

Magnetic Resonance Imaging (MRI) Based Diagnosis of Anterior Cruciate Ligament (ACL) TEARS in Patients with Internal Derangements of Knee

Rahim

Balooch

Khan

et al. 2022

PAFMJ

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Objective: To assess the role of magnetic resonance imaging (MRI) in diagnosing anterior cruciate ligament (ACL) tears in patients with knee internal derangements. Study Design: Prospective longitudinal study. Place and Duration of Study: Department of Radiology, Combined Military Hospital, Kharian Pakistan, from Sep 2019 Aug 2020. Methodology: 40 patients of any age and gender were part of the study with painful or unstable knee joints. A clinical examination was performed after recording demographic data. In addition, MRI was performed, and primary and secondary signs were noted for each case. Results: The range of patients was 15 to 63, with a mean age of 36.3 ± 12.62 years. Most of the patients were male (n=29; 72.5%), whereas only 11 (27.5%) were females. In total, 27 (67.5%) complete and 13 (32.5%) partial Anterior cruciate ligament (ACL) tears were present. Blumensaat’s angle> 15 degree was present in 10 (37.03%) complete tear cases and 2 (15.38 %) partial tear cases. Anterior tibial displacement was evident in 4 (14.81%) complete tear cases and 3 (23.07 %) partial tear cases. Posterior cruciate line (PCL) angle was apparent in 21 (77.77%) complete tear cases and 12 (92.30 %) partial tear cases. Conclusion: The use of MRI is advocated for diagnosing Anterior cruciate ligament (ACL) tears in patients with knee internal derangements.

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“…Chien et al (16) revealed that On MRI, the popliteus tendon, biceps femoris tendon, and fibular collateral ligament are all clearly visible. The arcuate ligament and fabellofibular ligament are present to varying degrees, although the PFL is almost always present.…”

Section: Discussionmentioning

confidence: 99%

Role of MRI in Evaluation of Injuries of Posterolateral Corner of the Knee

Mosilhy¹,

Zaid²,

Almolla³

et al. 2022

The Egyptian Journal of Hospital Medicine

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Background: In particular during extension, the posterolateral corner of the knee (PLC) acts as a substantial rotational and transitional stress resistor. The interplay of numerous overlapping structures creates the multi-compartment complicated sector known as the posterolateral corner. Objective: Assessment of conventional MRI role in posterolateral corner of the knee. Patients and Methods: The study was a cross-sectional study. It was conducted at the Radiodiagnosis Department, Zagazig University Hospitals during six months. It included 36 symptomatic patients with knee trauma before the MR examination. Their ages ranged from 21 to 53 years. Results: According to LCL pathology among the studied cases there were 16.7% intact, 33.3% with sprain, 25% with partial tear and 25% with compete tear. According to PT pathology there were 19.4% intact, 66.7% with sprain, 5.6% with partial tear and 8.3% with compete tear. According to BF pathology there were 94.4% intact and 5.6% with compete tear. According to ITB pathology; 94.4% intact and 5.6% with ITB friction syndrome. According to PFL pathology, 50% intact, 25% with sprain, 16.7% with partial tear and 3 (8.3%) with compete tear. There was remarkable variation between patients and healthy persons in LCL, PT, BF, ITB, and PFL lesions. Conclusion:We came to the conclusion that MRI offers a superb, in-depth assessment of the knee's posterolateral corner structures and lesions. Chronic posterolateral instability can be caused by an unsuspected posterolateral corner injury. To improve surgical care, suggestive imaging results should be quickly communicated with the orthopedic surgeon.

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Magnetic resonance imaging of the knee

Cited by 22 publications

References 101 publications

Morphometric magnetic resonance imaging study of the quadriceps tendon in hemodialysis patients: comparison with non-dialyzed controls

Morphometric magnetic resonance imaging study of the quadriceps tendon in hemodialysis patients: comparison with non-dialyzed controls

Magnetic Resonance Imaging (MRI) Based Diagnosis of Anterior Cruciate Ligament (ACL) TEARS in Patients with Internal Derangements of Knee

Role of MRI in Evaluation of Injuries of Posterolateral Corner of the Knee

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