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Combined In vivo Optical and µCT Imaging to Monitor Infection, Inflammation, and Bone Anatomy in an Orthopaedic Implant Infection in Mice
Published on: October 16, 2014
[Imaging of child osteoarticular infections]
Abstract:
The diagnostic strategy in imaging osteoarticular infections is currently quite well codified. X-rays, always available in the emergency situation, are systematically taken. They can be usefully completed with sonography in accessible superficial locations, when looking for a puncturable abscess. MRI is not systematic but is widely used: In place of bone scintigraphy, when osteomyelitis is suspected with a normal x-ray and a clinical warning sign; In the acute period of certain deep topographies when looking for an abscess (pelvis, spinal cord); When growth cartilage is involved to evaluate the risk of epiphysiodesis; When there is resistance to treatment; In the chronic forms of osteomyelitis, for diagnosis and evaluating the extent of infection. The CT scanner has few indications: it is performed when looking for bone sequestrum in chronic forms and when MRI access is impossible in difficult anatomical sectors (spinal cord, pelvis, scapula). Scintigraphy is currently only performed when x-rays are normal and there are no clinical warning signs.
Insights
Imaging plays a key role in diagnosing osteoarticular infections. While X-rays are standard, MRI and CT scans offer crucial details for specific conditions like osteomyelitis and abscesses.
Area of Science:
- Radiology
- Infectious Diseases
- Orthopedics
Background:
- Osteoarticular infections require a structured diagnostic approach.
- Imaging modalities are central to identifying and managing these infections.
Purpose of the Study:
- To outline the codified diagnostic imaging strategy for osteoarticular infections.
- To delineate the indications for various imaging techniques.
Main Methods:
- Systematic review of current diagnostic imaging practices.
- Analysis of the utility of X-rays, sonography, MRI, CT, and scintigraphy.
Main Results:
- X-rays are the initial emergency imaging modality.
- MRI is valuable for suspected osteomyelitis, deep abscesses, growth plate involvement, treatment resistance, and chronic infections.
- CT is indicated for bone sequestrum and when MRI is inaccessible.
- Scintigraphy is reserved for specific scenarios with normal X-rays and no clinical signs.
Conclusions:
- The choice of imaging depends on the clinical presentation and suspected diagnosis.
- A stepwise approach utilizing different modalities ensures comprehensive evaluation of osteoarticular infections.
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