Osteoarthritis and crystal arthropathies Flashcards
What differences are there in a normal synovial joint and an osteoarthritic joint?
Inflammation of synovial membrane, articular cartilage failure, loss of joint space
What is the pathogenesis of osteoarthritis?
Loss of cartilaginous matrix, release of IL1 and TNF cytokines which results in fibrillation of the cartilage surface.
What are the two types of ostearthritis?
Idiopathic
Secondary
Where does idiopathic osteoarthritis most commonly affect?
Hands, feet, knee, hip, spine.
What can cause secondary osteoarthritis?
Previous injury,
RA
Acromegary
What are the risk factors for developing osteoarthritis?
Older, Female, Obesity, Sports, Previous injury
What are the symptoms of osteoarthritis?
Pain worse on activity and relieved by rest
Stiffness in the morning.
On examination, what do you expect to find in a osteoarthritis positive patient?
Joint tenderness
Joint effusion
Crepitus
Bony enlargements
Where does osteoarthritis tend to affect?
Hip, knee, MTP joints in foot, cervical and lumbar spine.
Big toe.
What are enlargements at the distal interphalangeal joints called?
Heberdens nodes
What are enlargements at the proximal interphalangeal joints called?
Bouchards nodes
How is osteoarthritis diagnosed?
On x-ray:
loss of joint space
subchondral sclerosis
subchondral cysts
What blood findings differentiate RA from osteoarthritis?
RA has positive rheumatoid factor and a positive anti-CCP Ab.
Osteoarthritis has normal CRP and ESR
What is the non-pharmalogical management process of osteoarthritis?
Physiotherapy
weight loss
Exercise
Trainers
What drugs can be used to treat osteoarthritis?
Analgesia
NSAIDs- need to balance risk
Amitriptyline, gabapentin
What intra-articular injections can be given?
Steroids- main one
Hyaluronic acid
What surgical procedures can be given as management for osteoporosis?
Arthroscopic washout (not routine) Joint replacement.