Carlos Frederico Arend

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Sonography has been used successfully to evaluate a number of musculoskeletal disorders. The method is operator dependent and familiarity with sonographic pitfalls greatly improves diagnostic accuracy and helps to optimize management. In this article, we discuss ten common pitfalls which can become a source of confusion and misdiagnosis in musculoskeletal(More)
OBJECTIVE The purpose of this study was to determine whether exclusively long-axis sonography differs from a multiple-axis scanning protocol as a screening tool for rotator cuff lesions in symptomatic shoulders when compared with magnetic resonance imaging (MRI). METHODS A total of 509 consecutive patients (mean age, 52.8 years) referred for MRI were also(More)
To the best of the author’s knowledge, there is no scientific evidence indicating that the condition is caused by occupational or recreational overuse. Conversely, the analysis of historical series documents its higher prevalence among women over the centuries, even at times when only men effectively participated in the manual, repetitive work. Therefore,(More)
Ultrasonography has recently gained prestige as an adjuvant method for the diagnosis and therapeutic follow-up of rheumatoid arthritis, although radiography remains the imaging modality traditionally and widely used for those purposes. The great advantage of the ultrasonographic study, which has motivated enthusiastic research in the area, resides in its(More)
Injury to the ulnar collateral ligament (UCL) complex of the thumb is a common traumatic lesion that requires prompt imaging evaluation for adequate treatment. In this article, we review the role of ultrasound in diagnosis and illustrate the spectrum of both static and dynamic findings related to the UCL injuries. We also describe a number of alternative(More)
The acromial origin of the deltoid is a target structure of ankylosing spondylitis and related spondyloarthritis, which are often overlooked and underdiagnosed as causes of posterior shoulder pain. The objective of this article is to review the roles of sonography and magnetic resonance imaging in detecting deltoideal acromial enthesopathy and their(More)