Osteoarthritis + Rheumatoid Arthritis Flashcards
What are the four subtypes of inflammatory arthritis?
Seropositive
Seronegative
Infectious
Crystal induced
What are the seropositive inflammatory arthritis?
Rheumatoid arthritis Connective tissue diseases: - Lupus - Scleroderma - Vasculitis - Sjogren's
What are the seronegative inflammatory arthritis?
Ankylosing spondylitis
Psoriatic arthritis
Reactive arthritis
IBD arthritis
Describe the pain + stiffness seen in osteoarthritis
Mechanical pain–> worse on activity, relieved by rest
(may eventually be present at rest or at night)
Usually morning stiffness lasting < 30 minutes
–> inactivity gelling
What are the common sites for OA?
Cervical spine, lumbar spine, hip, knee
Foot –> MTP joint
Hand –> DIP, PIP, 1st IP, 1st MCP, CMC
Which general findings may bee seen on examination of an OA joint?
Crepitus
Joint swelling –> bony enlargements due to osteophytes
Joint tenderness/effusion
Which bony enlargements may be seen in OA fingers?
DIPs –> Heberdens nodes
PIPs –> Bouchards nodes
Which findings may been seen on examination of an OA knee?
Effusion
Crepitus
Reduced ROM
Bakers cyst
How might pain present in an OA hip?
Pain in groin, radiating to the knee
How is OA diagnosed?
Clinical + xray
What are the X-ray findings in an OA joint?
Loss of joint space
Osteophytes
Subchondral sclerosis
Subchondral cysts
What are the non-pharmacological management options for OA?
Explanation Physio --> muscle strengthening Weight loss Exercise Trainers, insoles, walking stick
What is the step wise approach to pharmacological management of OA?
- Paracetamol + topical NSAIDs
- Topical capsaicin for knee or hand
- Oral opioids
- Oral NSAIDs/COX-2 inhibitor
- Intra-articular steroids
What are the cardinal features of an inflammatory arthritis?
Joint pain + swelling Morning stiffness > 30 mins Improvement with exercise Synovitis on examination Raised inflammatory markers (CRP +PV) Extra-articular symptoms
What is the main structure involved in RA?
Synovium (lines joint capsules and tendon sheaths)