[Diagnosis. Radiological study. Ultrasound, computed tomography and magnetic resonance imaging].
Because of its low cost, availability in primary care and ease of interpretation, simple X-ray should be the first-line imaging technique used by family physicians for the diagnosis and/or follow-up of patients with osteoarthritis. Nevertheless, this technique should only be used if there are sound indications and if the results will influence decision-making. Despite the increase of indications in patients with rheumatological disease, the role of ultrasound in patients with osteoarthritis continues to be limited. Computed tomography (CT) is of some -although limited- use in osteoarthritis, especially in the study of complex joints (such as the sacroiliac joint and facet joints). Magnetic resonance imaging (MRI) has represented a major advance in the evaluation of joint cartilage and subchondral bone in patients with osteoarthritis but, because of its high cost and diagnostic-prognostic yield, this technique should only be used in highly selected patients. The indications for ultrasound, CT and MRI in patients with osteoarthritis continue to be limited in primary care and often coincide with situations in which the patient may require hospital referral. Patient safety should be bourne in mind. Patients should be protected from excessive ionizing radiation due to unnecessary repeat X-rays or inadequate views or to requests for tests such as CT, when not indicated.
Especialistas en Medicina Familiar y Comunitaria, Miembros del Grupo de Trabajo de Enfermedades Reumatológicas de la Sociedad Española de Medicina Familiar y Comunitaria, Centro de Salud Zaidín-Sur, Granada, España. Electronic address: fjgallov@gmail.com.
Francisco Javier
FJ
Gallo Vallejo
Especialistas en Medicina Familiar y Comunitaria, Miembros del Grupo de Trabajo de Enfermedades Reumatológicas de la Sociedad Española de Medicina Familiar y Comunitaria, Centro de Salud Ciudad Jardín, Alicante, España. Electronic address: ginerpatres@gmail.com.
Vicente
V
Giner Ruiz
D006801:Humans; D008279:Magnetic Resonance Imaging; D010003:Osteoarthritis / Q000175:diagnosis* / Q000000981:diagnostic imaging; D014057:Tomography, X-Ray Computed; D014463:Ultrasonography
Artrosis; Diagnóstico por la imagen; Ecografía; Imaging diagnosis; Osteoarthritis; Patient safety; Radiology; Radiología; Seguridad del paciente; Ultrasound