Rheumatology Flashcards
Rheumatoid Hand Signs
- MCP/PIP inflammation
- Swan neck deformity
- Boutonniere’s deformity
- Ulnar deviation/subluxation
- Wrist subluxation
Suspect if 3 joint areas involved, MCPJs/MTPJs, early morning stiffness > 30 minutes and symmetrical joint involvement with duration of >6 weeks
Rheumatoid Arthritis
Diagnosis of Rheumatoid Arthritis
Clinical diagnosis using ACR criteria
- Need 6/10 features
- Clinical and biochemical features assessed
Investigations for Rheumatoid Arthritis
Bloods: CRP/ESR, RF, anti-CCP, ANA, ANCA, Ig, complement
Imaging: XR, MRI, US
Joint Aspirate: Inflammatory
Renal: Urine dip + PCR
Cardiac: ECG, echo
Resp: CXR, HRCT
XR features in RA
- Periarticular osteopenia
- Symmetrical joint space loss
- Deformities
- Erosions
- Nodules
- Soft tissue swelling
Management of RA
CONSERVATIVE
- PT/OT/psych
- Smoking cessation
- Peer support groups
- Monitor disease activity (DAS 28)
MEDICAL
- Treat to target (ie remission)
- Steroids short term to induce remission
- MTX + alternative DMARD (hydroxychloroquine/sulfasalazine)
- Biologics if 2x DMARDs fail (anti-TNF, anti-IL6, anti-CD20, JAK inhibitors)
- Bone/gastroprotection
SURGICAL
- Joint replacement
- Joint fusion
Complications of Ankylosing Spondylitis
6 As:
- Anterior uveitis
- Aortitis/Aortic regurgitation/AV node block
- Apical fibrosis (rare)
- Amyloidosis
- Atlanto-axial dislocation (cord compression)
- IgA nephropathy
Ank Spond scoring system
Bath ankylosing spondylitis disease activity index
Ank Spond Examination
- Hands
- Eyes
- Heart
- Lungs
- Back (range of movement)
- Shober’s test (back) - 5cm below + 10cm above dimples of venus
Ank Spond Investigations
Bloods: CRP, U+E, HLA B27 gene
Imaging: XR lumbar spine, ?MRI
Renal: Urine dip/PCR
Cardio: Echo, ECG
Resp: CXR, HRCT, spirometry
Management of Ankylosing Spondylitis
CONSERVATIVE:
- Exercise
- PT/OT
- Smoking cessation
MEDICAL
- Analgesia (NSAIDS) + PPI
- Bone protection
- MTX for peripheral joint problems
- Biologics if fails 2x NSAIDs (anti-TNF)
SURGICAL
- Joint replacement
- Valve replacement
Asymmetrical deforming polyarthropathy with DIPJ involvement, nail changes, dactylitis and enthesitis
Psoriatic arthritis
Diagnosis of Psoriatic arthritis
CASPAR criteria (minimum 3/5)
- Psoriasis/FHx of
- Psoriatic nail changes
- RF negative
- Dactylitis
- Juxta-articular bone on XR
Extra-articular features of PsA
Skin - psoriasis
Nails - pitting, onycholysis
Eyes - Iritis, conjunctivitis
Investigations for PsA
Bloods: CRP, ANA, RF, anti-CCP
Imaging: XR
Joint aspirate: High WCC, no crystals