scholarly journals Radiological features of knee joint synovial chondromatosis

Reumatismo ◽  
2019 ◽  
Vol 71 (2) ◽  
pp. 81-84
Author(s):  
E. Boninsegna ◽  
A. Fassio ◽  
M. Testoni ◽  
D. Gatti ◽  
O. Viapiana ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Knee Joint ◽  
Clinical Presentation ◽  
Rare Condition ◽  
Synovial Chondromatosis ◽  
X Rays ◽  
Resonance Imaging ◽  
Radiological Features ◽  
Variable Clinical Presentation

Synovial chondromatosis (SC) is a rare condition with a very variable clinical presentation, thus making the diagnosis not immediate. We report a case of massive primary SC of the knee, properly evaluated with X-rays, ultrasonography and magnetic resonance imaging and successfully treated with an arthroscopic approach.

scholarly journals Magnetic ressonance imaging in the diagnosis of Creutzfeldt-Jakob disease: report of two cases

2015 ◽  
Vol 9 (4) ◽  
pp. 424-427
Author(s):  
Alan Peres Valente ◽  
Paula da Cunha Pinho ◽  
Leandro Tavares Lucato
Keyword(s):  
Magnetic Resonance Imaging ◽  
Basal Ganglia ◽  
Magnetic Resonance ◽  
Clinical Presentation ◽  
Rare Condition ◽  
Resonance Imaging ◽  
Progressive Dementia ◽  
Jakob Disease ◽  
Magnetic Resonance Imaging Mri ◽  
Aids Diagnosis

ABSTRACT Creutzfeldt-Jacob disease (CJD) is a rare condition caused by a pathogenic prion protein that evolves with rapidly progressive dementia and death. The clinical presentation may sometimes be misleading. Magnetic Resonance Imaging (MRI) aids diagnosis with patterns that can guide or confirm clinical hypotheses. Two cases of rapidly progressive dementia with ataxia, myoclonus and restricted diffusion on MRI in cortical/basal ganglia are presented to draw attention to CJD.

scholarly journals A Spectrum of MRI Findings in the Knee Joint: A Retrospective Study of Selected Population in South-South Nigeria

2021 ◽  
Vol 7 (2) ◽  
pp. 5-9
Author(s):  
Okechukwu Felix Erondu ◽  
◽  
Nonyelum Aniebo ◽  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Knee Joint ◽  
Cruciate Ligament ◽  
Knee Injuries ◽  
Quadriceps Tendon ◽  
Synovial Chondromatosis ◽  
Meniscal Tears ◽  
Resonance Imaging ◽  
Mri Findings

The knee is a very important joint and injuries affecting it may cause significant disability and discomfort to the patient. Despite a variety of methods available to assess injuries of the knee joint, Magnetic Resonance Imaging (MRI) continues to play a major role. This study evaluated the spectrum of MRI findings in a relatively low resource environment, with limited access to MRI modality. The outcome should justify further investment in MRI services in this locality. The study involves retrospective analysis of MRI reports of 198 clinically symptomatic patients referred for imaging in a Port-Harcourt. All examinations were performed using GE BRIVO MR 235 machine with 0.35 Tesla field strength in a well-coupled standard knee coil. All images were analyzed for normality or otherwise and radiological reports generated by competent radiologists. The most common findings are traumatic in origin, notably cruciate ligament tears (37.37%) and meniscal tears (33.3%) as well as quadriceps tendon tears (3.03%). The medial meniscus and anterior cruciate ligaments were more frequently involved. Furthermore, patients in the 3rd and 4th decade of life were more commonly involved, with a male preponderance. The less common findings of Synovial chondromatosis, cyst-like lesions, tumors and loose bodies, all buttress the importance of routine MRI in atraumatic cases. The spectrum of MRI findings in this study is a reflection of growing interest and confidence in MRI of the diseased knee joint in our environment. The outcome would be a justification for future investments in MRI. Keywords: Magnetic Resonance Imaging, knee injuries, tibial meniscal tears, incidental findings

scholarly journals Discoid meniscus: current concepts

2020 ◽  
Vol 5 (7) ◽  
pp. 371-379
Author(s):  
Manuel Saavedra ◽  
Matías Sepúlveda ◽  
María Jesús Tuca ◽  
Estefanía Birrer
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Clinical Presentation ◽  
Lateral Meniscus ◽  
Asian Population ◽  
X Rays ◽  
Meniscal Tears ◽  
Resonance Imaging ◽  
Discoid Meniscus ◽  
Stable Fixation

Discoid meniscus is the most frequent congenital malformation of the menisci, and primarily affects the lateral meniscus; it is highly prevalent in the Asian population. The anatomic, vascular, and ultrastructural features of the discoid meniscus make it susceptible to complex tears. Discoid meniscus anomalies are described according to their shape; however, there is consensus that peripheral stability of the meniscus should also be defined. Initial workup includes plain X-rays and magnetic resonance imaging, while arthroscopic evaluation confirms shape and stability of the meniscus. Clinical presentation is highly variable, depending on shape, associated hypermobility, and concomitant meniscal tears. Treatment seeks to re-establish typical anatomy using saucerization, tear reparation, and stable fixation of the meniscus. Cite this article: EFORT Open Rev 2020;5:371-379. DOI: 10.1302/2058-5241.5.190023

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

Accessory Soleus Muscle

2004 ◽  
Vol 94 (6) ◽  
pp. 587-589 ◽  
Author(s):  
Tuba Karagülle Kendi ◽  
Aziz Erakar ◽  
Olcay Oktay ◽  
H. Yusuf Yildiz ◽  
Yener Saglik
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Soft Tissue ◽  
Soleus Muscle ◽  
Clinical Presentation ◽  
Imaging Features ◽  
Resonance Imaging ◽  
Tissue Mass ◽  
Anatomical Variant ◽  
Muscle Magnetic Resonance Imaging

Accessory soleus muscle is an uncommon anatomical variant that may present as a soft-tissue mass in the posteromedial region of the ankle. It is congenital in origin but usually presents in the second or third decade of life. Although it is a rare entity, accessory soleus muscle should be included in the differential diagnosis of soft-tissue swelling of the ankle. Awareness of the clinical presentation and specific findings of computed tomography, magnetic resonance imaging, and electromyography help with diagnosis without surgical exploration. We describe a 30-year-old patient with accessory soleus muscle. Magnetic resonance imaging features of the case are described, and the literature is briefly reviewed. (J Am Podiatr Med Assoc 94(6): 587–589, 2004)

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