ABSTRACT
<p><b>OBJECTIVE</b>To assess the correlation between vertebral body deformity and degeneration of the adjacent intervertebral discs in patients with old thoracolumbar compression fractures.</p><p><b>METHODS</b>Seventy-one patients who had been conservatively treated after single segment thoracolumbar compression fractures between April, 2011 and May, 2014 were enrolled in this study. Both radiographic and magnetic resonance (MR) images of the thoracolumbar segment were obtained. The involved vertebral body deformity was rated on radiography according to the Genant criterion, and the degeneration of the adjacent cephalic and caudal discs was assessed on MR images using the Oner and Pfirrmann classification schemes, respectively. The relationship between vertebral body deformity and adjacent disc changes was assessed using correlation analysis, and the changes in the adjacent cranial and caudal discs was compared.</p><p><b>RESULTS</b>The Genant classification of the involved vertebral bodies was moderately correlated with Oner morphological scores (r=0.48, P<0.01), but not with the Pfirrmann signal scores of the adjacent cephalic discs or with the Genant or Pfirrmann scores of the adjacent caudal discs (P>0.05). The Oner classification of the adjacent cephalic discs was higher than that of the adjacent caudal discs (P<0.01), but their Pfirrmann classification did not differ significantly.</p><p><b>CONCLUSION</b>The deformity of vertebral body affects the adjacent cephalic discs proportionally but not the adjacent caudal discs.</p>
Subject(s)
Humans , Fractures, Compression , Intervertebral Disc , Pathology , Intervertebral Disc Degeneration , Magnetic Resonance Imaging , Spine , PathologyABSTRACT
Objective To investigate MR findings of acute thigh muscle strains in male football athletes.Methods Twenty five thighs of 21 football athletes with acute muscle strains were analyzed retrospectively.All subjects were examined with MR unit.The anatomical location,size,severity,signal features of the acute strained muscles were analyzed by two experienced radiologists based on MR images.Results There were 32 muscles involved totally,including 1 9 hamstring muscles,5 adductor muscles,7 quadriceps femoris,and 1 sartorius muscle.18 muscles were MR grade 1 injuries,14 of grade 2,and these was no grade 3 injuries.Conclusion Thigh muscle injury of football athletes most frequently involved the hamstring muscle,and MR is an effective tool for detecting acute muscle strains of the thigh.
ABSTRACT
PurposeTo investigate the physical characteristics of the lumbar bone marrow fat content by analyzing the correlation of the lumbar bone marrow fat content with age, gender, body mass index (BMI) and waist circumference. It may be helpful to deepen the understanding the occurrence regularity of osteoporosis. Materials and Methods A total of 144 subjects were recruited including both healthy volunteers and the patients with chronic low back pain. The height, weight and waist circumference were measured, and the body mass index was calculated. All the subjects took spectroscopy sequence at the third lumber vertebra with single-voxel point resolved spectroscopy (PRESS) method. Lipid (1.3 ppm) to water (4.67 ppm) ratio (LWR) and lipid fractions (FF%) were measured. LWR and FF% of L3 were compared among the patients with different gender, age, BMI and waist circumference. The correlation of LWR and FF% of L3 and age were analyzed.Results The LWR and FF% of L3 showed no signiifcant difference between the male and female (t=-0.267 and-0.993,P>0.05). There was statistical difference of LWR and FF% among the different age groups (F=3.723 and 5.478,P70 year-old group (P70 year-old group (P0.05). Age was positive correlated with FF% of L3 (r=0.321,P<0.05).Conclusion The lumbar bone marrow fat content is correlated with age, but is not correlated with gender, BMI and waist circumference.