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Temporomandibular joint arthritis in juvenile idiopathic arthritis: the
forgotten joint
Current Opinion in Rheumatology
Arabshahi, Bita, et al. - Given the paucity of clinical symptoms in
temporomandibular joint arthritis, detection of temporomandibular joint
inflammation using contrast-enhanced magnetic resonance imaging is essential
for instituting appropriate therapy in a timely fashion. The use of
intra-articular corticosteroids holds promise for control of
temporomandibular joint inflammation and prevention of associated
morbidities...
Juvenile idiopathic arthritis: the paediatric perspective
Pediatric Radiology
Janet E. McDonagh, et al. - Paediatric rheumatology is a relatively new
specialty that has developed rapidly over the last 30 years. There have been
major advances, which have included improvements in the classification and
management of juvenile idiopathic arthritis (JIA)...
The relationship between alpha angle and resistive index of the femoral
epiphysis in the normal and abnormal infant hip
Pediatric Radiology
John Amodio, et al. - Conclusion: There is a direct linear relationship
between alpha angle and resistive index in the infant hip. Female infants
have a higher average resistive index than male infants. We believe that
these results might serve as a model for predicting an infant hip at risk of
ischemia. In addition, the fact that lower resistive indices of the femoral
epiphysis are associated with acetabular dysplasia might help explain the
documented low incidence of avascular necrosis in untreated hip dysplasia...
Influence of arm movement on central tip location of peripherally inserted
central catheters (PICCs)
Pediatric Radiology
Bairbre Connolly, et al. - Conclusion: Arm position is the significant
variable influencing PICC movement. Side, site and vein do not influence the
range of movement significantly. Most PICCs descend deeper into the chest
with arm adduction and elbow bending...
A critical appraisal of radiographic scoring systems for assessment of
juvenile idiopathic arthritis
Pediatric Radiology
Andrea S. Doria, et al. - Assessing structural damage to joints over time is
essential for evaluating the effectiveness of therapeutic interventions for
patients with inflammatory arthritis. Although radiography is able to
quantify joint damage, the changes found with conventional radiography early
in the disease course are nonspecific, and late radiographic changes are
often irreversible...
Imaging of juvenile idiopathic arthritis
Pediatric Radiology
Karl Johnson - Over the past decade there have been considerable changes in
the classification and imaging of juvenile idiopathic arthritis (JIA).
Radiology now has a considerable role in the management of JIA, the
differential diagnosis, monitoring disease progression and detecting
complications...
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A simple method to determine the pelvic inclination angle based on
anteroposterior radiographs
Journal of Orthopaedic Science
Masaru Kitajima, et al. - Conclusions: The pelvic inclination angle can be
estimated by measuring the height of the pelvic foramen according to our
formula. Our formula was shown to have adequate reliability and
reproducibility...
August 24, 2006
Pain Response in the First Trimester after Percutaneous Vertebroplasty in
Patients with Osteoporotic Vertebral Compression Fractures with or without
Bone Marrow Edema
American Journal of Neuroradiology
M.H.J. Voormolen, et al. - Pain decrease after PV in patients with VCF is
more frequently observed when full BME is present. Because 71% of patients
with VCF with absent BME responded favorably on pain, PV should not be
withheld based on absence of BME alone...
Long-Term Magnetic Resonance Imaging Evaluation of Bioresorbable Anterior
Cervical Plate Resorption Following Fusion for Degenerative and Traumatic
Disk Disruption
Spine
Vaccaro, Alexander R. MD, et al. - Conclusions: Based on MRI assessment,
these devices, at more than 2-year follow-up, did not indicate any local
chronic inflammation or swelling resulting from their degradation. Clinical
symptoms of dysphagia or dysarthria, a common reported problem following
anterior cervical spine procedures, were not observed in any patient...
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Subsequent Vertebral Fractures after Vertebroplasty: Association with
Intraosseous Clefts
American Journal of Neuroradiology
A.T. Trout, et al. - Patients with osteoporotic vertebral fractures
containing clefts are at increased risk for subsequent fractures and
treatment of these clefts is associated with increased rates of adjacent
fracture. There is no significant difference in the timing of subsequent
fractures based on the presence of a cleft...
Correlation of Histopathological Findings and Magnetic Resonance Imaging
(MRI) in the Spine of Patients with Ankylosing Spondylitis
Arthritis Research & Therapy
Heiner Appel, et al. - Ankylosing spondylitis (AS) is a chronic inflammatory
disease which affects primarily the sacroiliac joints and the spine...This
first study correlating histopathological changes in the spine of AS
patients with findings in MRI scans suggests that a substantial degree of
bone marrow inflammation and edema is necessary to be detected by MRI...
August 22, 2006
Does Vertebroplasty Cause Incident Vertebral Fractures? A Review of
Available Data
American Journal of Neuroradiology
A.T. Trout, et al. - Vertebroplasty has been in practice in the United
States for approximately 10 years and has been described as providing
significant benefit to patients with painful vertebral compression
fractures. Although the procedure appears to provide dramatic pain relief,
it is not without complications. The primary point of discussion in this
paper is whether vertebroplasty predisposes patients to the development of
additional vertebral fractures, at a rate higher than that seen in the
absence of vertebroplasty...
Computed tomography assisted osteodensitometry in total hip arthroplasty
Australian and New Zealand Journal of Surgery
Pandit, Salil, et al. - Periprosthetic bone remodelling is an important
issue in total hip arthroplasty, which can compromise long-term
outcomes...Conclusion: The newly designed tapered stem showed good clinical
and radiological outcomes with a proximal femoral bone loss that compares
favourably with other studies...
Multiparameter quantitative computer-assisted tomography assessment of
unicompartmental knee arthroplasties
Australian and New Zealand Journal of Surgery
Campbell, et al. - Conclusion: The UniCAT protocol uses less radiation than
whole-limb spiral scans and is a method that can be used with all modern
computer-assisted tomography machines. The coronal and sagital alignment
results compare favourably with previous published reports without
computer-assisted tomography. Component rotation has not previously been
reported and its implications are yet to be defined...
Spurious Elevation of Bone Mass Secondary to Paget Disease in a Patient With
Osteoporosis
Clinical Nuclear Medicine
Shanmugam, Nataraj MD, et al. - Bone mass assessment performed by
dual-energy densitometry (DEXA) on a 78-year-old man showed significant
osteoporosis in the lumbar spine and nondominant left femur. Bone density of
the right femur, however, was within normal limits. A bone scan performed
earlier demonstrated diffusely increased uptake in the right femur
consistent with Paget disease...
Incidental Diagnosis of Peyronie Disease on Bone Scintigraphy
Clinical Nuclear Medicine
Ho, Yvonne Y. MBBS, Franzcr, et al. - A 51-year-old man with renal failure,
admitted for fever and pain over his peritoneal dialysis catheter site, was
diagnosed with a pelvic abscess. Whole-body bone scintigraphy, performed as
part of the septic workup, showed incidental uptake of Tc-99m MDP in the
perineum. This is consistent with tunica albuginea calcification confirmed
on penile ultrasound, x-ray, and computed tomography. The patient later
revealed a history of erectile dysfunction. Imaging findings and history are
consistent with Peyronie disease
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Which radiological investigations should be performed to identify fractures
in suspected child abuse?
Clinical Radiology
A.M. Kemp, et al. - In children under 2-years old, where physical abuse is
suspected, diagnostic imaging of the skeleton should be mandatory. SS or BS
alone is inadequate to identify all fractures. It is recommended that all SS
should include oblique views of the ribs...
MRI of the ankle
Applied Radiology
Muhammad Ali, MBBS, et al. - Magnetic resonance imaging (MRI) is
increasingly being used for the evaluation of peripheral joints. This
article discusses issues related to performing and interpreting MRI of the
ankle. The authors detail patient positioning, protocols for high and low
field-strength extremity scanners, and artifacts that commonly occur in this
region. Pathologic findings are described for the medial, lateral, anterior,
and posterior regions of the ankle...
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August 15, 2006
Magnetic Resonance Imaging 20 Years After Anterior Lumbar Interbody Fusion
Spine
Wai, Eugene K. M.D., et al. - Conclusion: The prevalence of degenerative
changes is similar to other studies involving normal asymptomatic subjects.
Furthermore, the majority of degenerative changes seen occurred over
multiple levels or at levels not adjacent to the fusion, suggesting that
changes seen may be more likely related to constitutional factors as opposed
to the increased stresses arising from the original fusion...
August 14, 2006
Reproducibility of Measurement of Femoral Component Rotation After Total
Knee Arthroplasty Using Computer Tomography
Journal of Arthroplasty
Thomas Suter MD, et al. - Both the condylar twist angle (CTA) and the
posterior condylar angle (PCA) describe rotational alignment of the femoral
component after total knee arthroplasty. The purpose of this study was to
assess the reliability of the measured axes which determine these angles...
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