Lupus Symptoms Hands | Medical Algorithm

van Vugt et al developed an index for identifying this form of arthropathy which can occur in a variety of disorders.

Patient selection: SLE

Parameters:

(1) metacarpal finger axis deviation

(2) joint erosions on X-rays (rheumatoid arthritis like)

(3) Jaccoud arthropathy index (JAI)

Metacarpal Finger Axis Deviation	Joint Erosions	Jaccoud Arthro-pathy Index	Diagnosis
no	NA	NA	no deforming arthropathy
yes	no	JAI <= 5	mild deforming arthropathy
yes	no	JAI > 5	Jaccoud’s arthropathy
yes	yes	NA	rhupus hand

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SLE and Deforming Arthropathy | Flow Diagram for Classification