scholarly journals The relationship between radiologic parameters and transverse atlantal ligament injury obtained from MRI scans in patients with an isolated atlas burst fracture

Medicine ◽  
2021 ◽  
Vol 100 (49) ◽  
pp. e28122
Author(s):  
Jongpil Eun ◽  
Youngmin Oh
Keyword(s):  
Burst Fracture ◽  
Ligament Injury ◽  
Mri Scans ◽  
The Relationship ◽  
Transverse Atlantal Ligament

scholarly journals Relationship Between 2-Dimensional Frontal Plane Measures and the Knee Abduction Angle During the Drop Vertical Jump

2019 ◽  
Vol 28 (4) ◽  
Author(s):  
Brad W. Willis ◽  
Katie Hocker ◽  
Swithin Razu ◽  
Aaron D. Gray ◽  
Marjorie Skubic ◽  
...  
Keyword(s):  
Motion Capture ◽  
Vertical Jump ◽  
Frontal Plane ◽  
Ligament Injury ◽  
Coefficient Of Determination ◽  
Abduction Angle ◽  
Initial Contact ◽  
Knee Abduction ◽  
The Relationship ◽  
Drop Vertical Jump

Context: Knee abduction angle (KAA), as measured by 3-dimensional marker-based motion capture systems during jump-landing tasks, has been correlated with an elevated risk of anterior cruciate ligament injury in females. Due to the high cost and inefficiency of KAA measurement with marker-based motion capture, surrogate 2-dimensional frontal plane measures have gained attention for injury risk screening. The knee-to-ankle separation ratio (KASR) and medial knee position (MKP) have been suggested as potential frontal plane surrogate measures to the KAA, but investigations into their relationship to the KAA during a bilateral drop vertical jump task are limited. Objective: To investigate the relationship between KASR and MKP to the KAA during initial contact of the bilateral drop vertical jump. Design: Descriptive. Setting: Biomechanics laboratory. Participants: A total of 18 healthy female participants (mean age: 24.1 [3.88] y, mass: 65.18 [10.34] kg, and height: 1.63 [0.06] m). Intervention: Participants completed 5 successful drop vertical jump trials measured by a Vicon marker-based motion capture system and 2 AMTI force plates. Main Outcome Measure: For each jump, KAA of the tibia relative to the femur was measured at initial contact along with the KASR and MKP calculated from planar joint center data. The coefficient of determination (r2) was used to examine the relationship between the KASR and MKP to KAA. Results: A strong linear relationship was observed between MKP and KAA (r2 = .71), as well as between KASR and KAA (r2 = .72). Conclusions: Two-dimensional frontal plane measures show strong relationships to the KAA during the bilateral drop vertical jump.

Examining the Relationship Between a Neuromuscular Control Baseline Battery for Sport-Related Concussion and Anterior Cruciate Ligament Injury Risk

Neurology ◽  
2021 ◽  
Vol 98 (1 Supplement 1) ◽  
pp. S21.2-S22
Author(s):  
Ryan Moran
Keyword(s):  
Anterior Cruciate Ligament ◽  
Lower Extremity ◽  
Cruciate Ligament ◽  
Neuromuscular Control ◽  
Ligament Injury ◽  
Jump Landing ◽  
Eyes Closed ◽  
Eyes Open ◽  
Anterior Cruciate ◽  
The Relationship

ObjectiveTo examine the relationship between the m-CTSIB and Landing Error Scoring System in a sample of collegiate female athletes.BackgroundRecent literature has linked concussion and neuromuscular deficits in the lower extremity after injury. Neuromuscular control is frequently assessed using balance measures for concussion, but also dynamically to identify anterior cruciate ligament injury (ACL) risk via jump-landing movement screening.Design/MethodsThirty-nine healthy, collegiate female soccer (n = 22) and volleyball (n = 17) athletes completed the modified-Clinical Test of Sensory Interaction of Balance (m-CTSIB) and the Landing Error Scoring System (LESS). Measures consisted of total m-CTSIB sway index scores on individual conditions (firm surface eyes open [condition 1] and eyes closed [2], foam surface eyes open [3] and eyes closed [4]), m-CTSIB overall score, and total LESS errors. LESS scores were also categorized into a low (0–4 errors) and high (5 + errors) risk to determine if athletes with worse neuromuscular control on the LESS has worse balance on the m-CTSIB. A Spearman's rank-order correlation was conducted to determine the strength of the relationship between LESS and m-CTSIB performance. A series of Mann-Whitney U test were performed to determine differences between low and high LESS performance on m-CTSIB performance.ResultsThere was a weak, negative correlation between LESS and m-CTSIB performance (rs(37) = −0.153, p = 0.35). Further, there were no differences between the low and high risk LESS groups on sway index scores on conditions 1 (U = 158.5, p = 0.39), 2 (U = 156.0, p = 0.36), 3 (U = 165.5, p = 0.51), or 4 (U = 128.5, p = 0.08), as well as overall m-CTSIB scores (U = 150.5, p = 0.28).ConclusionsThere appears to be a lack of relationship between the LESS and m-CTSIB tests, revealing the independence of static and dynamic lower extremity neuromuscular function. Athletes who may be more at risk for ACL injury due to abnormal jump-landing biomechanics, do not differ from low-risk athletes on baseline balance assessment.

scholarly journals Midlife alcohol consumption and longitudinal brain atrophy: the PREVENT-Dementia study

2020 ◽  
Vol 267 (11) ◽  
pp. 3282-3286
Author(s):  
Michael J. Firbank ◽  
John T. O’Brien ◽  
Karen Ritchie ◽  
Katie Wells ◽  
Guy Williams ◽  
...  
Keyword(s):  
Alcohol Consumption ◽  
Volume Change ◽  
Brain Atrophy ◽  
Brain Volume ◽  
Hippocampal Volume ◽  
Vascular Risk ◽  
Total Brain ◽  
Mri Scans ◽  
Aged Subjects ◽  
The Relationship

Abstract Background and aims Consensus is lacking on whether light to moderate consumption of alcohol compared to abstinence is neuroprotective. In this study, we investigated the relationship between self-reported alcohol use and brain volume change over 2 years in middle-aged subjects. Methods A sample of 162 subjects (aged 40–59 at baseline) from the PREVENT-Dementia programme underwent MRI scans on two separate occasions (mean interval 734 days; SD 42 days). We measured longitudinal rates of brain atrophy using the FSL Siena toolbox, and change in hippocampal volume from segmentation in SPM. Results Controlling for age and sex, there were no significant associations of either total brain, ventricular, or hippocampal volume change with alcohol consumption. Adjusting for lifestyle, demographic and vascular risk factors did not alter this. Conclusions We did not find any evidence of influence of alcohol consumption on changes in brain volume over a 2-year period in 40–60-year-olds.

A neuropsychological perspective on three schizophrenic patients with midline structural defects

1997 ◽  
Vol 170 (5) ◽  
pp. 416-421 ◽  
Author(s):  
N. M. J. Edelstyn ◽  
F. Oyebode ◽  
M. J. Riddoch ◽  
R. Soppitt ◽  
H. Moselhy ◽  
...  
Keyword(s):  
Cognitive Processing ◽  
Cognitive Functions ◽  
Neuropsychological Tests ◽  
Structural Defects ◽  
Individual Basis ◽  
Mri Scans ◽  
Schizophrenic Patients ◽  
The Relationship ◽  
Structural Anomalies

BackgroundThe relationship between midline structural defects and schizophrenia remains unclear, although a number of neuroradiological studies have reported an association between schizophrenia and a range of anomalies.MethodThree patients are reported, each diagnosed with schizophrenia and neuroradiological evidence of midline structural anomalies. MRI scans are reported in conjunction with performance over a range of neuropsychological tests designed to assess frontal and lateralised cognitive functions.ResultsEvidence of anterior dysfunction was present in all three cases, while on an individual basis patients displayed varying patterns of preserved and dysfunctional cognitive processing.ConclusionThe reported findings raise a number of interesting issues regarding the nature of hemispheric involvement in schizophrenia.

MRI-Detectable Focal Lesions (FL) in Multiple Myeloma (MM) at Relapse Frequently Involve Novel Sites Not Involved at Diagnosis.

Blood ◽  
2004 ◽  
Vol 104 (11) ◽  
pp. 5124-5124 ◽  
Author(s):  
Ronald Walker ◽  
L. Jones-Jackson ◽  
Eric Rasmussen ◽  
M. Miceli ◽  
Elias Anaissie ◽  
...  
Keyword(s):  
Multiple Myeloma ◽  
General Trend ◽  
M Protein ◽  
Focal Lesions ◽  
Extramedullary Tumor ◽  
Mri Scans ◽  
The Relationship ◽  
Baseline Examination

Abstract Macrofocal lesions (FL) in the medullary space are a hallmark of mm readily detected by MRI scans, both at diagnosis and at relapse. In this study we evaluated, among 25 patients enrolled in TT II, with FL at relapse and a preceding clinical CR (by M protein and marrow examinations) the relationship to presence and location of FL at diagnosis. On relapse, 17/25 (68%) had fewer FL, 5/25 (20%) had the same number of FL, 3/25 (12%) had more FL than on baseline examination. There was a general trend for the larger FL at baseline to still be present on relapse (Table 1). Despite the trend to fewer focal lesions on relapse compared to baseline, 11/25 (44%) of patients presented with FL in new sites that were not present on baseline. Finally, in relapsing patients, 4/25 (16%) presented with new sites of extramedullary tumor (EMD). These data establish that although there are usually fewer MRI-defined FL on relapse than on baseline examination, the vast majority of FL on relapse represent new areas of macrofocal disease that were not present at diagnosis. MRI FL Persisting from Baseline to Relapse (n=25) Size (cm) Baseline FL Present upon Relapse % < 0.5 1/2 50 0.5–1cm 8/10 80 1–2 cm 13/18 72 > 2 cm 10/16 63 All Sizes 26/36 72

Two-year study of the use of neuroimaging in a psychiatric inpatients unit

2011 ◽  
Vol 28 (3) ◽  
pp. 151-152
Author(s):  
Tolulope Alugo ◽  
Johnson Badejo ◽  
Peter Whitty
Keyword(s):  
Substance Misuse ◽  
Meath Hospital ◽  
Psychiatric Patients ◽  
Demographic Data ◽  
Lower Number ◽  
Case Note ◽  
Mri Scans ◽  
The Relationship ◽  
Case Note Review ◽  
Ct And Mri

AbstractObjectives: Neuroimaging is being used increasingly in the investigation of psychiatric disorders. Previous studies have found abnormalities in about two-thirds of all scans done in psychiatry. The aim of our study was to investigate the use of CT and MRI in the management of inpatients in psychiatry department Adelaide & Meath hospital, Tallaght and to examine the relationship between diagnosis and abnormalities seen on scans.Method: We did a two-year retrospective study of all inpatient referrals for CT scans/MRI scans. A case note review of bio-demographic data, diagnosis, relevant medical history, substance misuse history, indication for tests and results of scans was done. We found that 66 CTs and MRI scans were done over the study period.Results: Fourteen (21%) of the scans had abnormal results which were mostly atrophic changes. Of the 14 abnormal scans, seven had abnormal findings on neurological examination. We found a lower number of abnormal scans compared to previous studies.Conclusions: Radiological abnormalities were not disease specific. We wish to propose guidelines on the indications for using neuroimaging in psychiatric patients.

The Relationship between Menstrual Cycle Phase and Anterior Cruciate Ligament Injury

2006 ◽  
Vol 34 (5) ◽  
pp. 757-764 ◽  
Author(s):  
Bruce D. Beynnon ◽  
Robert J. Johnson ◽  
Stuart Braun ◽  
Mike Sargent ◽  
Ira M. Bernstein ◽  
...  
Keyword(s):  
Anterior Cruciate Ligament ◽  
Menstrual Cycle ◽  
Anterior Cruciate Ligament Injury ◽  
Cruciate Ligament ◽  
Ligament Injury ◽  
Cycle Phase ◽  
Menstrual Cycle Phase ◽  
Anterior Cruciate ◽  
The Relationship
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