Jaccoud arthropathy

Jaccoud arthropathy (JA) is a deforming non erosive arthropathy characterised by ulnar deviation of the second to 5th fingers with MCP subluxation.

It was traditionally described as occurring post rheumatic fever. It is also seen in association with systemic lupus erythematosus (SLE) and other rheumatic and nonrheumatic conditions including psoriatic arthritis, inflammatory bowel disease and malignancy 5. Thought to be related to ligamentous laxity.

Location

Typically affects the metacarpophalangeal (MCP) joints but can also affect the proximal interphalangeal (PIP) joints of the hands, wrists and knees 2.

Plain radiograph
  • hand radiographs typically show marked ulnar subluxation and deviation at the MCP joints
  • absence of erosions is a notable feature, although occasionally "hook" erosions may be observed, which are similar to those seen in Lupus (SLE) and ankylosing spondylitis (AS) 6
  • evidence of muscle (soft tissue) atrophy also may be present

It is named after F S Jaccoud, French physician 3.

On imaging possible considerations include


Arthritides
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Article Information

rID: 9665
Section: Pathology
Synonyms or Alternate Spellings:
  • Arthropathy of Jaccoud
  • Jaccoud's arthropathy

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