Rheumatology Concepts and Inflammatory arthropathies Flashcards
Define arthropathy
disease of the joint
Define arthritis
inflammation of the joint
Define arthralgia
Pain in a joint
List Seropositive inflammatory arthritides
Rheumatoid Lupus Scleroderma Vasculitis Sjogrens
List Seronegative inflammatory arthritides
Ankylosing Spondylitis
Psoriatic Arthritis
Reactive Arthritis
Inflammatory Bowel Disease
What are the other types of inflammatory arthritis?
Infectious
Crystal induced
What is a seropositive condition?
Auto-antibodies found in serum
What causes the failure of immune regulation in auto-immune disease?
Genetic Predisposition
Environmental Insults
-infection
-chemical exposure
What is Anti-CCP antibody associated with?
Rheumatoid Arthritis
What is Anti-nuclear antibody (ANA) antibody associated with?
SLE, Sjogrens, Systemic Sclerosis, Mixed connective tissue disease, autoimmune liver disease
What is Anti-double stranded DNA antibody associated with?
SLE
What is Anti-Sm antibody associated with?
SLE
What is Anti-Ro antibody associated with?
SLE, Sjogrens
What is Anti-La antibody associated with?
Sjogrens Syndrome
What is Anti-centromere antibody associated with?
Systemic sclerosis (limited)
What is Anti-Scl-70 antibody associated with?
Systemic sclerosis (diffuse)
What is Anti-RNP antibody associated with?
SLE, Mixed connective tissue disease
What is Anti-Jo-1 antibody associated with?
Myositis
What is Anti-cardiolipin antibody and lupus anticoagulant associated with?
Anti-phospholipid syndrome
What is Anti-neutrophil cytoplasmic antibody associated with?
Small vessel vasculitis (GPA, EGPA, MPA)
List causes of secondary osteoarthritis?
Congenital Dislocation of the hip Perthes SUFE Previous intra-articular fraction Extra-articular fracture with malunion Osteochondral/hyaline cartilage injury Crystal arthropathy Inflammatory arthritis Meniscal tears Genu Varum Genu Valgum
What are typical radiographic findings of OA
L- oss of joint space
O- steophytes
S- clerosis
S- ubchondral cysts
What is the management of OA
Pain control
- analgesia, mild opiates
- physiotherapy
- weight loss
- exercise
Replacement depending on joint affected
What is the treatment of inflammatory arthropathies?
Simple analagesia
Anti-inflammatories
- steroids
- NSAIDs
Steroid injections
DMARDs
Describe the distribution of rheumatoid arthritis?
Cervical vertebrae Shoulder Joints Elbow Joints Hip Wrist MCP PIP
NOT DIPs
Knee
Ankles
Tarsal joints
MTP
Describe the distribution of psoriatic arthritis?
Not symmetrical
Elbow DIP Wrist Knee Ankle DIP
Describe the distribution of inflammatory spondylitis?
Spine Shoulders SI Joint Hip Knee
Describe the distribution of osteoarthritis?
Cervical spine Lumbar spine Hip Thumb DIP Knee toes
What are the features suggestive of joint inflammation?
- Joint pain with associated swelling
- Morning Stiffness
- Improvement with exercise
- Synovitis on examination
- Raised inflammatory markers (CRP and PV)
- Extra-articular symptoms
Who is most likely to be affected by RA?
Women : men 3/2:1
35-50 yrs
People with affected 1st degree relatives 3x
Describe the pathogenesis of RA?
Immune response against synovium lining joints and some tendons
Triggers
-smoking, infection, trauma
Formation of inflammatory panus, attacks and denudes articular cartilage leading to joint destruction
Tendon ruptures and soft tissue damage can lead to subluxation
How is RA diagnosed?
Based on clinical presentation, radiographic findings and serological analysis
Describe extra-articular manifestations of RA?
Rheumatoid nodules (25%) on site of mechanical irritation
Lung involvement
- pleural effusions
- interstitial fibrosis
- pulmonary nodules
Cardiovascilar morbidity and mortality
Occular involvement is common
- keratoconjunctivitis sick
- episcleritis
- uveitis
- nodular scleritis
- scleromalacia
What might you see on early X-ray of RA?
No joint abnormalities
Peri-articular osteopenia
Describe the treatment of RA?
Aim to start DMARD within 3 month of symptom onset
Methotrexate usually first line
Biologic agents
- anti-TNF alpha
- tocluzimab
- rituximab
- abatacept
MUST HAVE DAS 28 + FOR BIOLOGICS
Which surgeries can be performed in RA?
Synovectomy Joint replacement Joint excision Tendon transfer Arthrodesis Cervical Spine stabilisation
What are individuals with seronegative arthropathies often positive for?
HLA-B27
CRP and ESR elevation
Describe ankylosing spondylitis?
Chronic inflammatory disease of the spine and sacroiliac joints
Lead to fusion of intervertebral joints and SI joints
Who is more affected by ankylosing spondylitis?
Male : female
3:1
20-40 years
How can lumbar spine flexion be tested
Schobers test
Which conditions are associated with ankylosing spondylitis?
Uveitis
Aortitis
Pulmonary fibrosis
Amyloidosis
What is the treatment for ankylosing spondylitis?
Physiotherapy
Exercise
NSAIDs
Anti-TNF
DMARDs have no effect unless peripheral joint inflammation
What surgery can be done in ankylosing spondylitis?
Kyphoplasty to straighten spine is controversial
What commonly occurs on psoriatic arthritis?
Spondylitis, dactylitis, enthesitis
Nail changes
- pitting
- oncholysis
What is the destructive form of psoriatic arthritis?
Arthritis mutilans
What is the treatment for psoriatic arthritis?
DMARDs
Anti-TNF
Describe enteropathic arthritis?
Involves peripheral joints and sometimes spine in patients with IBD
Describe reactive arthritis
Occurs in response to an infection in another part of the body
- GU infection
- GI infection
Occurs 1-3 weeks following infections
What triad of symptoms can be present in reactive arthritis?
Urethritis, Uveitis or conjunctivitis, arthritis
Reiters syndrom