Joints

Published on 12/06/2015 by admin

Filed under Radiology

Last modified 12/06/2015

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3

Joints

3.1

Monoarthritis

1. Trauma – pointers to the diagnosis are: (a) the history, (b) the presence of a fracture, and (c) a joint effusion, especially a lipohaemarthrosis.

2. Osteoarthritis.

3. Crystal-induced arthritis

4. Rheumatoid arthritis* – occasionally. Also juvenile idiopathic arthritis.

5. Pyogenic arthritis – commonest joints affected are the hip, knee and small joints of the hands and feet. 15% of those due to Staphylococcus aureus and 80% of those of gonococcal aetiology involve two or more joints. The joint may be radiographically normal at first presentation.

6. Tuberculous arthritis – insidious onset with radiological changes present at the time of first examination. Erosions first develop at peripheral non-contact points of the joint.

7. Pigmented villonodular synovitis* – most commonly at the knee.

8. Sympathetic – a joint effusion can occur as a response to a tumour in the adjacent bone.

9. Neuropathic arthropathy*.

10. Synovial chondromatosis.

11. Amyloidosis.