[Calcium pyrophosphate dihydrate crystal induced arthropathy]

Area of Science:

• Rheumatology
• Crystal-induced Arthropathies
• Calcium Pyrophosphate Deposition Disease

Context:

• CPPD deposition disease is a prevalent and potentially severe arthropathy.
• Associated conditions like hyperparathyroidism, hemochromatosis, and hypomagnesaemia can predispose individuals to chondrocalcinosis, particularly in early disease stages (<=60 years).

Purpose:

• To outline the clinical manifestations, diagnostic approaches, and therapeutic strategies for CPPD deposition disease.
• To highlight the importance of identifying underlying metabolic disorders contributing to chondrocalcinosis.

Summary:

• CPPD deposition disease can manifest as acute inflammatory arthritis (pseudogout) or chronic arthropathies mimicking rheumatoid arthritis (RA), osteoarthritis (OA), or neuropathic joint disease.
• Diagnosis relies on synovial fluid analysis for positively birefringent CPPD crystals and radiographic evidence of cartilage calcification.
• Treatment involves NSAIDs, intra-articular or systemic glucocorticoids, with colchicine for recurrent pseudogout and magnesium for prevention.

Impact:

• Improved understanding of CPPD disease presentation and associations.
• Guidance on diagnostic workup and management strategies for clinicians.
• Potential for better patient outcomes through timely diagnosis and appropriate treatment of CPPD deposition disease and associated conditions.