Device for Assessing Knee Joint Dynamics During Magnetic Resonance Imaging

2021 ◽  
Author(s):  
Sandeep P. Jogi ◽  
Rafeek Thaha ◽  
Sriram Rajan ◽  
Vidur Mahajan ◽  
Vasantha K. Venugopal ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Knee Joint ◽  
Resonance Imaging ◽  
Joint Dynamics

In Vivo Tracking of the Human Patella Using Cine Phase Contrast Magnetic Resonance Imaging

1999 ◽  
Vol 121 (6) ◽  
pp. 650-656 ◽  
Author(s):  
F. T. Sheehan ◽  
F. E. Zajac ◽  
J. E. Drace
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Knee Joint ◽  
Phase Contrast ◽  
Three Dimensional ◽  
Resonance Imaging ◽  
Contrast Magnetic Resonance ◽  
Knee Joint Kinematics ◽  
Cine Phase Contrast

Improper patellar tracking is often considered to be the cause of patellar-femoral pain. Unfortunately, our knowledge of patellar-femoral-tibial (knee) joint kinematics is severely limited due to a lack of three-dimensional, noninvasive, in vivo measurement techniques. This study presents the first large-scale, dynamic, three-dimensional, noninvasive, in vivo study of nonimpaired knee joint kinematics during volitional leg extensions. Cine-phase contrast magnetic resonance imaging was used to measure the velocity profiles of the patella, femur, and tibia in 18 unimpaired knees during leg extensions, resisted by a 34 N weight. Bone displacements were calculated through integration and then converted into three-dimensional orientation angles. We found that the patella displaced laterally, superiorly, and anteriorly as the knee extended. Further, patellar flexion lagged knee flexion, patellar tilt was variable, and patellar rotation was fairly constant throughout extension.

Early diagnosis of spondyloarthritis and gonarthritis with the magnetic resonance imaging

2020 ◽  
pp. 66-77
Author(s):  
Gulnara Abdulkhakovna Kantyukova ◽  
Nataliya Ivanovna Valieva ◽  
Igor Aleksandrovich Kutuzov ◽  
Artem Andreevich Bogachev ◽  
Yuriy Olegovich Novikov
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Early Diagnosis ◽  
Knee Joint ◽  
Dynamic Control ◽  
Significant Loss ◽  
Lumbar Region ◽  
Resonance Imaging ◽  
Aseptic Inflammation ◽  
Longitudinal Splitting

Introduction. Musculoskeletal pain (MSP) — has now assumed the character of a non-infectious epidemic and ranks second among the causes of disability, leading to a significant loss of productivity among the working-age population in all industrialized countries. Spondyloarthrosis of the lumbar region and gonarthrosis are the main diseases that doctors face at outpatient appointments. The pathogenesis of the disease develops according to one scenario, accompanied by aseptic inflammation, involvement of the muscular and ligamentous apparatus in the process, leading to the formation of dissimilar locomotor disorders, antinociceptive insufficiency, peripheral and central sensitization. Presents the results of magnetic resonance imaging (MRI), which can be used for early diagnosis of MSD, as well as dynamic control during treatment. Aim — to assess of neuroimaging signs in patients with spondyloarthrosis and gonarthrosis, depending on the genesis of the disease. Methods. An analytical single-stage study was performed with 123 patients with an established clinical diagnosis of MSP, who were divided into four groups: primary gonarthrosis (36 people), post-traumatic (38 people), spondylogenic (30 people) and x-ray negative (19 people). To study neuroimaging signs, MRI was performed on the devices «OPENMARK 4000» 0.42 T of the company «ANKE», «OPART» 0.35 T of the company «TOSHIBA» and «Superstar» 0.35 T of the company «Neusoft medikal systems» in transversal, sagittal and coronary projections, in T1W, T2W and STIR modes with adipose tissue suppression. Results. During MRI examination, 47.2 % of patients revealed spondyloarthrosis of the III grade, 30,1 % — II grade. 33,3 % had damage in the form of fragmentation of the internal and external meniscus of the knee joint, 30.1 % of cases revealed damage to the internal meniscus in the form of longitudinal splitting and the same number of osteophytes. The most common cases were intervertebral disc sequestration (2,4 %) and expansion of the articular gap of the knee joint (4,1 %), and spondyloarthritis of the I grade (7,3 %). When compared in groups, more pronounced neuroimaging signs were detected in posttraumatic and primary gonarthrosis, and they were significantly lower in spondylogenic genesis. When examining the spine, no differences were found in the groups. Conclusion. The study showed high information content of MRI in CA and GA, which allows for early diagnosis of the disease and differential diagnosis.

Is magnetic resonance imaging reliable for assessing osteosarcoma of the knee joint in children?

2021 ◽  
pp. 103086
Author(s):  
Anne-Laure Simon ◽  
Aurélien Hallé ◽  
Anca Tanase ◽  
Michel Peuchmaur ◽  
Pascal Jehanno ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Knee Joint ◽  
Resonance Imaging

scholarly journals THE ROLE OF MAGNETIC RESONANCE IMAGING IN THE DIAGNOSIS OF DEFORMING ARTHROSIS OF PROFESSIONAL ETIOLOGY IN MINERS

2018 ◽  
Vol 5 ◽  
pp. 3-11
Author(s):  
Angela Basanets ◽  
Maria Bulavko
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Knee Joint ◽  
Joint Damage ◽  
Knee Joints ◽  
Prognostic Models ◽  
Diagnostic Efficiency ◽  
Resonance Imaging ◽  
Physical Loading ◽  
Medial Hypertrophy

The paper analyzes the effectiveness of magnetic resonance imaging with cartilage diagram in diagnosing signs of professional deforming arthrosis of knee joints in miners working in conditions of significant physical loading. Aim of the research – to determine of diagnostic efficiency of indicators of magnetic resonance imaging of the knee joint and cartilage diagram in miners of the main occupations suffering from deforming arthrosis. Methods. The research is conducted in 30 miners of basic occupations: 20 mining workers of breakage face (MWBF) and 10 machinists of shearer mining machines (МSMM) have been treated in the inpatient department of occupational pathology of the Lviv Regional Clinical Hospital in 2015-2017 due to deforming arthrosis. Damages of the main anatomical elements of the knee joint with arthrosis were analyzed, visualized initially with the help of MRI, and then - cartilage diagram. Results. According to the MRI data, in miners of the main occupations with arthrosis of the knee joint the posterior cross-shaped ligament are most commonly affected (in 75.0±9.7 % MWBF and 70.0±14.5 % МSMM), damage to the medial collateral ligament are diagnosed less frequently (in 5.0±4.9 % in the MWBF and in 10.0±9.5 % in the МSMM). On average 3.8±0.4 modified elements of the knee joint are visualized in patients, whereas 4.8±0.1 affected areas are visualized on the cartilage diagram (р<0.05). In 86.7±6.2 % patients, in the analysis of cartilage diagram, changes in all five analyzed areas are diagnosed, indicating a higher efficiency of the diagnosis of changes in the structures of the joint with DA of the professional etiology of the method of cartilage diagram compared with MRI. According to the cartilage diagram the most significant changes are noted in the hypertrophy of the femur: among all miners 62.5±0.3 ms (medial) and 62.6±0.4 ms (lateral), in the MWBF group the average time of Т2-delay is the largest in the area of the medial hypertrophy of the femur is 60.9±2.3 ms, in the МSMM group – in the area of the lateral hypertrophy of the femur: 66.7±3.3 ms, which can be linked to the peculiarities of the forced working position of miners of these professions and the kinetics of joint structures. These results can be used to diagnose the initial lesions of joint structures with DA of professional genesis, as well as the creation of prognostic models for determining the the degree of risk of development of knee joint damage, which will allow to improve the system of personified approach to diagnostic and preventive measures in working persons in conditions of considerable physical activity and forced working position.

Knee joint diseases diagnosed by ultrasound and magnetic resonance imaging

2014 ◽  
Vol 9 (1) ◽  
pp. 1
Author(s):  
ElgeiliAdam Yousif ◽  
AlsafiAhmed Abdella ◽  
BushraHussien Ahmed ◽  
QurashiMohammed Ali
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Knee Joint ◽  
Joint Diseases ◽  
Resonance Imaging

scholarly journals Extensor hallucis longus tendon is a new distal landmark for coronal tibial component alignment in total knee arthroplasty: A study of magnetic resonance imaging

2020 ◽  
Vol 28 (1) ◽  
pp. 230949902091234
Author(s):  
Manabu Hino ◽  
Shuji Nakagawa ◽  
Yuji Arai ◽  
Hiroaki Inoue ◽  
Hiroyuki Kan ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Total Knee Arthroplasty ◽  
Magnetic Resonance ◽  
Knee Joint ◽  
Ankle Joint ◽  
Resonance Imaging ◽  
Tibial Torsion ◽  
Valgus Angle ◽  
Extensor Hallucis Longus ◽  
Total Knee

Purpose: In total knee arthroplasty (TKA), various landmarks are generally used to ensure correct osteotomy. In this study, we examined whether the tibialis anterior tendon (TAT) or the extensor hallucis longus tendon (EHLT) could be used as a landmark of the center of the ankle joint in patients with knee osteoarthrosis (OA), using magnetic resonance imaging (MRI). Methods: The subjects were 61 patients with OA in 79 knees (males: 8 with 9 knees and females: 53 with 70 knees). With the ankle joint secured in the intermediate position, MRI from the knee joint to the ankle joint was performed in the same foot position. We prepared individual lines connecting the center of the ankle joint with the TAT or EHLT to measure the angle difference (ΔA) from Akagi’s line in the knee joint. We analyzed whether the ΔA might be affected by deformity of the knee joint or foot region, and tibial torsion. Results: At the ankle joint level, the ΔA of EHLT was the smallest, with an average of 1.6 ± 3.4°. The ΔA for the femorotibial angle, hallux valgus angle, and varus–valgus angle showed no correlations with deformity of the knee joint and foot region, or tibial torsion. Conclusions: MRI findings showed that EHLT would be useful as a landmark of the ankle joint center in extramedullary tibial osteotomy in TKA for medial knee OA. It was also clarified that the landmark would not be affected by severe deformity of the knee joint, deformity of the foot region, or external torsion of the tibia.

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