Arthritis Flashcards
What is osteoarthritis?
How does it occur?
Imbalance between breakdown and repair of articular cartilage
Result from mechanical stress (repeated trauma, obesity etc.)
Symptoms of Osteoarthritis are…
Insidious:
- Aching, poorly localised pain (Worse with activity, better with rest)
- Reduced motion
- Limp
- Crepitus
- Bony enlargement (Heberden’s DIP /Bouchard’s nodes PIP)
- Bowing/knock-knees
- Joint swelling
What joints are commonly affected by OA?
- Hips
- Knees
- Spine
- Small hand/foot joints
What’s the joint fluid like in OA?
Non-inflammatory (WBC <1,500)
Yellow, Clear fluid
Osteoarthritis X-rays show?
FLOSS:
- Flattened bone
- Loss of joint space
- Osteophytes (Bone spur growth)
- Subchondral cysts
- Subchondral sclerosis
Treatment for OA
Analgesia
Paracetamol, NSAIDs, Topical NSAIDs, capsaicin, IA injections (steroids, hyaluronic acid)
Surgery for specific joint (non-operative options exhausted + impact QoL)
Exercise, weight loss (even if painful)
Stop painful activities
Heat packs, TENS, functional aids
Physio for muscle strengthening, prevent falls
Treatment steps for OA
- Holistic assessment - pain and comorbidities
- Core (self-treatment, info, weight loss)
- Non-pharmacological (heat packs, OT aids)
- Pharmacological
- Surgical
What is rheumatoid arthritis?
Autoimmune disease attacking joints
Destruction of bone + Cartilage
Inflamed synovium
Joint instability, Chronic pain, loss of/poor function
Symptoms of Rheumatoid Arthritis
- Morning stiffness, improved with activity
- Affects more than three joints, persists >6 weeks
- Swelling of hand joints (PIP, MCP, not DIP)
- Ulnar deviation/Boutonniere’s deformity
- Symmetrical swelling
- Extra-articular features (anaemia, subcutaneous nodules, vasculitis, interstitial lung disease, sarcopenia) Sjogren’s)
What’s the joint fluid like in RA?
Turbid yellow (high WBC <50,000)
Investigations for RA?
Rheumatoid factor +ve in >85%
Anti-CCP antibody positive in 75%
Imaging findings in RA?
- Soft tissue swelling
- Erosions
- Deformity
- Joint space narrowing
- Periarticular osteopenia
(Bony changes are late stage)
Treatment for RA?
DMARDs: Methotrexate (XXX PREGNANCY), Sulfasalazine
Biologics - ok in pregnancy!: TNF-a inhibitors e.g. etanercept, adalimumab, (best combo with DMARD)
Corticosteroids (Oral, IM, IA)
What is Gout?
Inflammation of 1+ joints due to uric acid crystal deposits in joints or tissues
(Most common Inflammatory arthritis in men)
Gout Risk Factors?
- Obesity
- Alcohol
- Dietary purines
- Chronic renal insufficiency
Symptoms of Gout?
Episodic acute joint pain
90% monoarticular (1st MTP joint is most common)
Precipitated by trauma, surgery, alcohol, infection