Bucket-Handle Meniscal Lesions: Magnetic Resonance Imaging Criteria for Reparability
Arthroscopy
Patricia Thoreux M.D., et al. - The purpose of this study was to determine the accuracy of magnetic resonance imaging (MRI) in predicting knee bucket-handle meniscal tear (BHMT) reparability...Conclusions: These results suggest that knee BHMTs that are predicted to be reparable by MRI would have a high likelihood of actually being reparable...

Imaging of muscle disorders in children
Pediatric Radiology
Karl Johnson, et al. - Muscle inflammation is a relatively common pathological process in childhood. The diagnosis of the underlying cause relies on an appreciation of the pattern of clinical features, as well as the results of biochemical, histological and radiological investigations...

Multifocal epithelioid hemangioendothelioma of the phalanges of the hand
Skeletal Radiology
Melanie Bruegel, et al. - Epithelioid hemangioendothelioma (EH) of bone is a rare vascular neoplasm characterized by epithelioid endothelial cells and a variable biologic behaviour. The principal sites of occurrence of this osteolytic tumor are the lower extremity and the axial skeleton...

September 28, 2006

A case of syringomyelia associated with cervical spondylosis
British Journal of Radiology
D J A Butteriss, FRCR, et al. - Cervical spondylosis is an extremely common condition causing spinal cord compression, and yet it very rarely causes secondary syrinx formation. We report a case of cervical spondylosis with associated syringomyelia and review the possible pathogenesis of this condition...

Dedifferentiated parosteal osteosarcoma with well-differentiated metastases
Skeletal Radiology
Katsuhito Takeuchi, et al. - Metastases of dedifferentiated sarcoma usually contain a dedifferentiated component. We report a rare case of dedifferentiated parosteal osteosarcoma (dd-POS) with well-differentiated multiple metastases in a 65-year-old woman with a painful firm mass on her thigh. Radiological examination revealed that the mass arose from the surface of her femur without medullary involvement...

Coexisting secondary intraneural and vascular adventitial ganglion cysts of joint origin: a causal rather than a coincidental relationship supporting an articular theory
Skeletal Radiology
Robert J. Spinner, et al. - The objective is to introduce the clinical entity of an intraneural ganglion cyst coexisting with a vascular adventitial cyst arising from the same joint...These cases provide important evidence to support the articular theory for the pathogenesis of not only neural but vascular adventitial cysts as well...

September 26, 2006

The Digital Dilemma
Orthopedic Technology Review
Kris Kyes - Digital radiography has attracted the attention of many orthopedic practices interested in reducing imaging costs and improving efficiency, but competing technologies for eliminating film have created confusion. Concerns related to image resolution and soft-copy image interpretation once slowed the spread of digital radiography, but these objections were overcome through technological advances and physician education some time ago...

Imaging of Synovial Sarcoma with Radiologic-Pathologic Correlation
Radiographics
Mark D. Murphey, MD, et al. - Synovial sarcoma is the fourth most common type of soft-tissue sarcoma, accounting for 2.5%?10.5% of all primary soft-tissue malignancies worldwide. Synovial sarcoma most often affects the extremities (80%?95% of cases), particularly the knee in the popliteal fossa, of adolescents and young adults (15?40 years of age)...
CME   

Teriparatide's effects on quantitative ultrasound parameters and bone density in women with established osteoporosis
Osteoporosis International
S. Gonnelli, et al. - This study aimed to evaluate the effects of teriparatide [hPTH (1?34)] on quantitative ultrasound (QUS) parameters and bone mineral density (BMD) at the axial and appendicular (hand) skeleton in women with established osteoporosis who had been previously treated with antiresorptive drugs. Sixty postmenopausal women (age 71.1±6.8 years) were randomly assigned to either receive once-daily 20-micro-g subcutaneous teriparatide (n=30) or continue the antiresorptive treatment (n=30)...

Involvement of the Anterior Portion of the Subacromial-Subdeltoid Bursa in the Painful Shoulder
American Journal of Roentgenology
Bernard Stallenberg, et al. - The purpose of our study was to verify that increased widening of the anterior portion of the subacromial-subdeltoid bursa is associated with anteromedial shoulder pain...Widening of the anterior portion of the subacromial-subdeltoid bursa is associated with anteromedial shoulder pain and the clinical syndrome of coracoid impingement...

MR Angiography of the Hand with Subsystolic Cuff-Compression Optimization of Injection Parameters
American Journal of Roentgenology
Thomas M. Gluecker, et al. - Image quality of hand MR angiography was better with cuff compression. A flow rate of 0.5 mL/s yielded a good CNR and a significantly lower venous contamination score than the other flow rates...

Fracture Risk (FRISK) Score: Geelong Osteoporosis Study
Radiology
Margaret Joy Henry, BSc(Hons), PhD, et al. - The objective is to develop and evaluate a fracture risk (FRISK) score based on multiple-site bone mineral density (BMD) measurements and other risk factors, to enable prediction of future fracture occurrence...Conclusion: This study resulted in the derivation of a fracture risk score that successfully predicted 75% of fractures 2 years after baseline...

MRI of Stress Reaction of the Distal Humerus in Elite Tennis Players
American Journal of Roentgenology
Justin C. Lee, et al. - Stress injury to the distal humerus is a cause of chronic arm pain among elite tennis players and may be exacerbated during full competition. The degree of marrow edema on STIR MRI may be predictive of time to return to competition...

Use of the "Two-Slice-Touch" Rule for the MRI Diagnosis of Meniscal Tears
American Journal of Roentgenology
Arthur A. De Smet, et al. - When using the two-slice-touch rule, we had an increased positive predictive value for diagnosing menisci as torn, which was statistically significant for the lateral meniscus. Our accuracy using the standard criterion with fast spin-echo imaging was comparable to that reported in previous studies with spin-echo imaging...

September 22, 2006

Response of Nonmidline Pain to Percutaneous Vertebroplasty
American Journal of Roentgenology
Jill E. Gibson, et al. - Most patients presenting for percutaneous vertebroplasty have nonmidline pain. Vertebroplasty reduced or eliminated nonmidline pain in 76-92% of the patients in whom it was reported. Procedures involving lumbar vertebrae tended to be successful less often than others, but even in these patients the procedure was successful in approximately 75%...

Epidemiologic, Clinical, and Imaging Findings in Brucellosis Patients with Osteoarticular Involvement
American Journal of Roentgenology
Aysin Pourbagher, et al. - Brucellosis is endemic to some regions. MRI is the method of choice for diagnosing osteoarticular and spinal complications of human brucellosis, especially during the early phase. It is important to differentiate tuberculous spondylodiskitis from brucellar spondylodiskitis because proper treatment for each of these diseases can prevent complications. The radiologic findings for these two forms of spondylodiskitis are similar, so serologic testing for brucellosis is necessary in such cases...

The role of imaging in the choice of correct treatment of unstable thoraco-lumbar fractures
European Journal of Radiology
Maria Consuelo Valentini, et al. - The concept of unstable burst fracture has been discussed since over 50 years and this injury has received much attention in the literature as regards its radiological diagnosis and clinical treatment. The purpose of this article is to review the way we use imaging to diagnose the injury and to guide treatment...

Comparison of Fluorodeoxyglucose Positron Emission Tomography and 111Indium?White Blood Cell Imaging in the Diagnosis of Periprosthetic Infection of the Hip
Journal of Arthroplasty
Stephen G. Pill MD, et al. - We aimed to compare the accuracy of fluorodeoxyglucose positron emission tomography (FDG-PET) with technetium-99m sulfur colloid 111indium-labeled white blood cell scintigraphy (TcSC-Ind BM/WBC) in diagnosis of periprosthetic infection...Based on these preliminary results, FDG-PET appears to be a promising diagnostic tool for distinguishing septic from aseptic painful hip prostheses...

September 20, 2006

Digital Radiographic Evaluation of Medial Joint Space Narrowing After Partial Meniscectomy of Bucket-Handle Medial Meniscus Tears in Anterior Cruciate Ligament?Intact Knees
American Journal of Sports Medicine
K. Donald Shelbourne, MD, et al. - Conclusion: Partial medial meniscectomy in stable knees causes only mild joint space narrowing (mean, 1.2 mm) at a mean 12-year follow-up. Digitally magnified 45° flexed posteroanterior radiographs are more likely to demonstrate joint space narrowing than are full-extension anteroposterior radiographs...

Bilateral lipoma arborescens of the subdeltoid bursa
Australasian Radiology
Pandey, et al. - Lipoma arborescens is a rare cause of chronic monoarticular arthritis. It is most commonly seen in the knees, but only a few cases involving other joints, especially the subdeltoid bursa, have been described. To our knowledge, this is the first reported case of lipoma arborescens involving bilateral subdeltoid bursae...

Comparison of non-coplanar and coplanar irradiation techniques to treat cancer of the pancreas
Australasian Radiology
Osborne, et al. - We compared two different techniques of pancreatic irradiation using measures associated with normal tissue complications. Seven consecutive patients with pancreatic cancer were planned for both coplanar and non-coplanar (NCP) external beam radiation treatments, using the same defined anatomical volumes for each patient, in each case. Each pair of plans was then compared using a range of objective criteria...

September 19, 2006

Optical imaging of experimental arthritis using allogeneic leukocytes labeled with a near-infrared fluorescent probe
European Journal of Nuclear Medicine & Molecular Imaging
Gerhard H. Simon, et al. - The purpose of this study was to assess the feasibility of inflammation detection in an antigen-induced arthritis model using fluorescent leukocytes and optical imaging...Conclusion: Inflammation in antigen-induced arthritis can be detected with ex vivo labeled allogenic leukocytes and optical imaging ...

Low-cost, low-field dedicated extremity magnetic resonance imaging in early rheumatoid arthritis: a 1-year follow-up study
Annals of Rheumatic Diseases
H M Lindegaard, et al. - To study the ability of low-cost low-field dedicated extremity magnetic resonance imaging (E-MRI) to assess and predict erosive joint damage in the wrist and metacarpophalangeal (MCP) joints of patients with early rheumatoid arthritis...Conclusion: In this group of patients with early rheumatoid arthritis who were treated uniformly, baseline E-MRI erosions in MCP or wrist bones markedly increased the risk of x ray erosions at the 1-year follow-up. Low-cost, low-field dedicated extremity MRI is promising for assessment and prognostication of early rheumatoid arthritis...

Prognostic factors affecting urologic outcome after untethering surgery for lumbosacral lipoma
Child's Nervous System
Chang Wang, et al. - UDS in cases with lumbosacral lipomas is a valuable tool for detecting neurourologic abnormalities as well as for monitoring the postoperative course and guiding management. History taking and neurologic examination are also proved to be important aspects in the evaluation of children with lumbosacral lipomas, predictive of urologic outcome. Better urologic results are anticipated if surgery is performed when the child is 12 months old or younger...

Giant Cell Reparative Granuloma of the Sphenoid Bone
American Journal of Neuroradiology
A. Aralasmak, et al. - We present 2 patients with giant cell reparative granuloma (GCRG) of the sphenoid bone. The first patient is an 8-year-old boy with involvement of the greater wing, and the second is a 53- year-old man with a lateral pterygoid plate mass. Both patients presented with rapid expansion of lytic bone lesions, which had solid and cystic components and lacked matrix calcification...

September 15, 2006

Radiographic Appearance of Lanthanum
New England Journal of Medicine
An 82-year-old man with hypertension, coronary artery disease, congestive heart failure, chronic constipation, degenerative joint disease of the hips, and a 5-year history of hemodialysis for end-stage renal disease presented with worsening hip pain. The results of his physical examination were unrevealing...

September 14, 2006

Axial loading with hyperflexion injury to the atlas resulting in crushed lateral masses
Emergency Radiology
Kaoru K. Sasaka, et al. - A 40-year-old man was involved in an ATV accident, in which he landed on the top of his head. There was no neurological deficit. A plain radiograph showed prevertebral soft tissue swelling at the atlas and axis level. Computed tomography (CT) demonstrated vertical fractures of the anterior aspects of both lateral masses of the atlas, extending to the junction of the lateral mass with the anterior arch bilaterally...

September 13, 2006

Infiltrative MRI Pattern and Incomplete Initial Surgery Compromise Local Control of Myxofibrosarcoma
Clinical Orthopedics and Related Research
Manoso, Mark W MD, et al. - Magnetic resonance imaging observations suggest a unique pattern of diffuse spread along fascial planes that could be responsible for the high local recurrence. Radiation did not compensate for positive margins, nor did it reduce recurrence after negative margins...

September 11, 2006

Leontiasis ossea and post traumatic cervical cord contusion in polyostotic fibrous dysplasia
BMC Ear, Nose and Throat Disorders
Leontiasis ossea (leonine facies) or cervical canal stenosis are rare complications of polyostotic fibrous dysplasia (PFD). This case report documents dramatic leontiasis ossea in PFD as well as post traumatic cervical cord contusion due to hyperextension injury in a patient with generalized PFD involving the cranio-facial bones, axial skeleton and entire spine with secondary cervical canal stenosis...

September 7, 2006

Doppler sonographic comparative study on usefulness of synovial vascularity between knee and metacarpophalangeal joints for evaluation of articular inflammation in patients with rheumatoid arthritis treated by infliximab
Modern Rheumatology
Kiori Shio, et al. - We used Doppler sonography to evaluate the therapeutic effects of infliximab on the knee and metacarpophalangeal (MCP) joints of 10 patients with rheumatoid arthritis (RA), based on the color flow signals (CFS) and resistance index (RI) of synovial vascularity...The knee joints are more suitable than MCP joints for obtaining CFS in Doppler sonography, and are more useful than MCP joints for evaluation...

The relation between joint erosion and generalized osteoporosis and disease activity in patients with rheumatoid arthritis
Rheumatology International
Filiz Sivas, et al. - Radiogram continues to have an important role in determining and following-up the joint erosion seen in patients with RA. However, we believe that as establishing periarticular osteoporosis in the early term by performing BMD measurements on the forearm is correlated with disease activity, it may be useful in the early diagnosis of RA and its objective results will be efficient in predicting the progression of disease...

Systematic Analysis of Missed Extremity Fractures in Emergency Radiology
Acta Radiologica
Wei, C. J., et al. - Conclusion: The overall percentage of missed fractures in the extremities was 3.7%. Only 33% of the initially missed fractures were attributed to radiographically imperceptible...

Is PET Useful in Detecting Occult Nonpulmonary Metastases in Pediatric Bone Sarcomas?
Clinical Orthopedics and Related Research
Kneisl, Jeffrey S MD, et al. - Orthopaedic oncologists are increasingly utilizing positron emission tomography (PET) technology in the initial workup and staging of sarcomas and for monitoring treatment response. We evaluated the use of PET with fluorine-18-fluoro- 2-deoxy D-glucose (FDG) to detect occult nonpulmonary metastases in patients < age 30 newly diagnosed with either Ewing's or osteosarcoma, and the impact of this information upon therapeutic decision making...

September 6, 2006

A Simple Technique for Shoulder Arthrography
Acta Radiologica
Berná Serna, J. D., et al. - Conclusion: The arthrographic technique used in this study is simple, safe, rapid, and reproducible, and has the advantage of precise localization of the site for puncture without need for fluoroscopic guidance. The procedure described in this study can be of help in teaching residents and can reduce the learning curve for radiologists with no experience in arthrographic methods. It also reduces the time of exposure to fluoroscopy...

Lumbar Spinal Dural Arteriovenous Fistula Presenting with Brainstem Symptomatology: A Case Report
Acta Radiologica
Wu, S. L., et al. - This report is about a rare case of a lumbar spinal dural arteriovenous fistula (DAVF) with distant brainstem symptoms of vertigo and ataxia. Brain magnetic resonance imaging (MRI) demonstrated a high signal abnormality in the lower pons, medulla, and cervico medullary junction, presumably related to venous hypertension...

Wrist circumference is related to patellar tendon thickness in healthy men and women
Clinical Imaging
John Nyland, et al. - The efficacy of dominant wrist circumference measurements to predict dominant lower extremity patellar tendon thickness at regions of interest for bone-patellar tendon-bone (BPTB) autograft harvest was studied among 24 healthy men and women. Dominant wrist circumference displayed good relationships with dominant lower extremity patellar tendon thickness as determined by two-dimensional diagnostic ultrasound...

September 1, 2006

Accuracy of pQCT for evaluating the aged human radius: an ashing, histomorphometry and failure load investigation
Osteoporosis International
M. C. Ashe, et al. - Conclusions: In summary, analysis mode, resolution and thresholding affected pQCT outputs at the radial midshaft. This study extends our understanding of pQCT analysis and provides important data regarding determinants of bone strength at the distal radius...

Short-term resistance training and the older adult: the effect of varied programmes for the enhancement of muscle strength and functional performance
Clinical Physiology and Functional Imaging
Henwood, Tim R., et al. - Although it is well recognized that resistance training is an efficient strategy to enhance physical performance in older adults, less is known about the most effective type of resistive exercise or the role of functional training. This study compared the effectiveness of three varied short-term (8 weeks) training protocols on muscle strength and functional performance in older men and women aged 65-84 years...