MSK Flashcards
what are the signs and symptoms of osteoarthritis?
1st CMC
hip/knee
nodal OA; PIP and DIP
name the seronegative spondyloarthropathies
RF negative ankylosing spondylitis psoriatic arthritis reactive arthritis enteropathic arthritis (associated with IBD)
describe ankylosing spondylitis
progressive inflammatory back pain from early 20s
buttock pain
peripheral joint involvement (large joints, hips, shoulders)
enthesitis
describe the presentation of psoriatic arthritis
can present as a small joint polyarthropathy
affects DIPs
oligoarthritis
what are the signs and symptoms of reactive arthritis?
acute oligoarthritis inflammatory back pain/sacroiliitis enthesitis fever malaise keratoderma blennorrhagica circinate balanitis mouth ulcers conjunctivitis uveitis
what are examples of radiating pain?
sciatica
referred pain
what are some of the conditions associated with arthritis?
psoriasis bowel problems red/painful eyes, vision problems gastroenteritis STIs SLE fibromyalgia
describe the general management plan for MSK disorders
pain management advice (topical, simple analgesia, NSAIDs)
joint/soft tissue injection
inflammatory disease control (NSAIDs, steroids orally/IM, intra-articular steroids, DMARDs, biologic drugs)
surgical intervention
physio/OT/podiatry, orthopaedics/social work referral
cardiovascular risk assessment
osteoporosis risk assessment
describe rheumatoid arthritis
chronic systemic inflammatory symmetrical small joint polyarthritis
multi-system disease
MCPs, PIPs
DIPs spared
what is the aetiology and pathogenesis of rheumatoid arthritis?
breakdown of immune tolerance and synovial inflammation
pannus erodes through cartilage and into bone
= bony destructions and erosions
complex interaction between genes and environment
smoking increased risk x 20-40
what are the signs and symptoms of rheumatoid arthritis?
early morning stiffness immobility stiffness eases with exercise and NSAIDs soft tissue swelling swelling of PIP and MCP joints subluxation at MCPs ulnar deviation at MCPs Z shaped thumb small muscle wasting of hand swan neck and Boutonniere deformity rheumatoid nodules (firm, non-tender and moveable, can be painful or asymptomatic)
what are the investigations for rheumatoid arthritis?
anti-CCP; specific
RF; not specific, can be positive in other autoimmune rheumatic disorders or any chronic immune stimulation (bronchiectasis)
seropositive; increased severity, nodules, systemic disease and more erosive disease
inflammatory markers
x ray; juxta-articular, loss of joint space, bone erosions
US; joint effusion with synovial proliferation, more sensitive for detecting early change
what are the risk factors for systemic, extra-articular disease?
age RF anti-CCP early disability smoking
describe rheumatoid vasculitis
occurs with longstanding, joint-destructive RA
when the erosive process that led to joint destruction has become less active
affects skin, digits, peripheral nerves, eyes and heart
cutaneous foot/leg ulcers; necrotising vasculitis of medium-sized arteries
can lead to digital ischaemia, necrosis and gangrene
describe vasculitic neuropathy
both mono neuritis multiplex and a distal symmetric sensory or sensorimotor neuropathy can occur
similar to diabetes
name some of the systemic manifestations of rheumatoid arthritis
rheumatoid vasculitis vasculitic neuropathy scleritis scleromalacia perforans lung nodules interstitial lung disease pleural disease anaemia felty's syndrome (neutropenia, splenomegaly) secondary sjogren's syndrome (dry eyes and mouth) secondary raynaud's phenomenon rheumatoid neck
define felty’s syndrome
a rare, potentially fatal disorder characterised by rheumatoid arthritis, splenomegaly and neutropenia
describe rheumatoid neck
the atlantoaxial joint is prone to subluxation in multiple directions
leading to cervical myelopathy
laxity of the transverse ligament induced by proliferative C1 to C2 synovial tissue
what are the signs, symptoms and treatment of rheumatoid neck?
pain radiating superiorly to back of head
slowly progressive spastic quadriparesis
painless sensory loss in hands or feet
radiograph shows >3mm separation between dens and C1 arch of atlas
treatment - conservative/surgery
what are the long-term risks of rheumatoid arthritis?
cardiovascular disease
lymphoproliferative disease
osteoporosis
what are the assessments of disease activity?
28 tender joint count
28 swollen joint count
VAS
ESR/CRP
doesn’t include feet
what is the treatment for rheumatoid arthritis?
TICORA steroids (usually IM) aggressive escalation of DMARDs biologics simple analgesia NSAIDs joint injection education MDT referral
what are the side effects associated with methotrexate?
infection lung irritation blood abnormalities liver abnormalities nausea teratogenic
what are the drugs used in rheumatoid arthritis?
DMARDs (methotrexate, hydroxychloroquine, leflunomide, sulfasalazine)
failed 2 DMARDs, one of which must be methotrexate
biologics (work better with DMARDs)