Rheumatoid Arthritis of the Hand

Buzz Words
- anatomic location
  - MCP
  - Carpals
  - Ulnar Styloid
  - Triquetrum
  - PIP
  - DIP spared
  - Symmetry
  - Marginal Erosions
  - Periarticular Osteopenia
- Disease
  - Inflammatory Synovial Pannus
RHEUMATOID ARTHRITIS
Showing degenerative and erosive changes dominantly at the MCP joints , intercarpal joints, ulnar carpal and radiocarpal joints and to lesser extent the PIP joints. There is ulnar deviation more prominent on the right hand
Ashley Davidoff MD

SWAN NECK DEFORMITY
3D reconstruction typifying a swan neck deformity of the 3rd digit characterized by hyperextension of the proximal interphalangeal (PIP) joint and
compensatory flexion of the distal interphalangeal (DIP) joint
This deformity is also seen in
scleroderma
psoriatic arthritis
and systemic lupus erythematosus arthropathy.
Ashley Davidoff MD
Late changes include:
- Swan neck deformity Boutonniere deformity
- Ulnar deviation of the MCP joints
- Carpal instability – ulnar translocation
- Ankylosis