Septic arthritis x ray
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-In-Chief: Jumana Nagarwala, M.D., Senior Staff Physician, Department of Emergency Medicine, Henry Ford Hospital; Cafer Zorkun, M.D., Ph.D. [2]Venkata Sivakrishna Kumar Pulivarthi M.B.B.S [3]
Overview
To establish the diagnosis of septic arthritis, specific imaging studies such as plane radiograph, ultrasound, CT scan, MRI or bone scan may not be useful, but imaging studies are useful differentiate septic arthritis from other forms of acute arthritis and also useful to to support a clinical suspicion of the disease and to assess the extent of inflammation, joint destruction and the past rheumatological disorders if present.
X Ray
Traditionally, the diagnosis of septic arthritis was based on clinical assessment and prompt arthrocentesis. However, the clinical picture may be obscured by multiple confounding factors and a paucity of specific findings especially for the deep joints, i.e. the hip or shoulder. Imaging can be used to confirm the diagnosis of septic arthritis and more importantly, imaging findings suggestive of septic arthritis can direct the clinician to a diagnosis that may not have been considered.
Plain film findings of septic arthritis include: joint effusion, soft tissue swelling, periarticular osteoporosis, loss of joint space, marginal and central erosions and bone ankylosis.