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OBJECTIVE: To evaluate the usefulness of ultrasound-guided versus fluoroscopy-guided injection in CT arthrography and MR arthrography. MATERIAL AND METHODS: We reviewed all CT arthrography and MR arthrography studies done at our center between October 1, 2014 and October 1, 2015. We analyzed 32 studies: 26 with fluoroscopic guidance and 6 with ultrasound guidance. We compared the two techniques on the following parameters: presence of sufficient contrast material in the joint, extravasation or injection of contrast material in the soft tissues (presence of contrast material in the psoas or other soft tissues), and intra-articular gas bubbles. We used SPSS V. 20 to compare the techniques with Pearson's chi-square tests. RESULTS: Contrast material was observed in soft tissues in 56.3% of ultrasound-guided injections, making 6.3% of the procedures invalid for diagnostic purposes. Extravasation of contrast material was observed in 53.8% of fluoroscopy-guided procedures, making 3.8% invalid for diagnostic purposes. Intra-articular gas was observed in 21.9% of ultrasound-guided studies and in 38.5% of fluoroscopy-guided studies. None of the differences between techniques were statistically significant at p<0.05. CONCLUSIONS: Our study shows that ultrasound is as useful as fluoroscopy for injecting contrast material for CT arthroscopy and MR arthroscopy; ultrasound has the advantage of not using ionizing radiation.

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Multidetector computed tomography (MDCT) has significant advantages over plain-film X-rays in the study of the extremities. Acute trauma poses diagnostic challenges, especially in joints in which the overlapping of bony structures impedes the view of the fractures or luxations. Each major joint has at least one classification system for fractures that aims to include the fundamental aspects necessary to orient the most effective treatment. These are the cases in which MDCT's capabilities for multiplanar and three-dimensional reconstructions provide information that is crucial for the management of trauma to the joint.

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La tomografía computarizada multidetector (TCMD) ofrece significativas ventajas frente a la radiología simple en el estudio de las extremidades. El traumatismo agudo plantea desafíos diagnósticos, en especial en aquellas articulaciones en que la superposición de las estructuras óseas impide una clara visualización de las fracturas o luxaciones. Cada articulación mayor cuenta con al menos una clasificación de fractura que trata de recoger los aspectos fundamentales que orientan al tratamiento más efectivo. Ahí es donde la TCMD, con la posibilidad de reconstrucciones multiplanares y tridimensionales, nos aporta una información crucial para el manejo del traumatismo articular (AU)

Multidetector computed tomography (MDCT) has significant advantages over plain-film X-rays in the study of the extremities. Acute trauma poses diagnostic challenges, especially in joints in which the overlapping of bony structures impedes the view of the fractures or luxations. Each major joint has at least one classification system for fractures that aims to include the fundamental aspects necessary to orient the most effective treatment. These are the cases in which MDCT's capabilities for multiplanar and three-dimensional reconstructions provide information that is crucial for the management of trauma to the joint (AU)

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Las técnicas de imagen tomográficas, tomografía computarizada (TC) y resonancia magnética (RM) se vienen usando cada vez de forma más frecuente, en sustitución o adición a la radiografía simple, para el estudio del dolor de espalda. El objetivo de este trabajo es realizar una revisión general de las manifestaciones en TC y RM del amplio espectro de enfermedades que pueden ser responsables del dolor generado en la columna vertebral. Este espectro abarca la enfermedad degenerativa, de la alineación vertebral, tumoral, inflamatoria e infecciosa. El conocimiento y la descripción exacta y uniforme de los hallazgos con dichas técnicas suponen un soporte fundamental para la toma de decisiones clínicas en los pacientes con dolor de raquis (AU)

The use of tomographic imaging techniques, computed tomography (CT) and magnetic resonance imaging (MRI), to complement or replace plain-film radiography in the study of spine pain is becoming more and more common. The aim of this paper is to provide a general review of the CT and MRI manifestations of the wide spectrum of lesions that can cause pain in the spinal column. This spectrum includes degenerative disease, malalignment, tumors, inflammatory processes, and infectious processes. Precise knowledge and accurate reporting of the findings at CT and MRI are fundamental for clinical decision making in patients with spine pain (AU)

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The use of tomographic imaging techniques, computed tomography (CT) and magnetic resonance imaging (MRI), to complement or replace plain-film radiography in the study of spine pain is becoming more and more common. The aim of this paper is to provide a general review of the CT and MRI manifestations of the wide spectrum of lesions that can cause pain in the spinal column. This spectrum includes degenerative disease, malalignment, tumors, inflammatory processes, and infectious processes. Precise knowledge and accurate reporting of the findings at CT and MRI are fundamental for clinical decision making in patients with spine pain.

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